/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 --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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label35.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:25:00,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:25:00,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:25:00,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:25:00,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:25:00,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:25:00,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:25:00,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:25:00,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:25:00,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:25:00,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:25:00,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:25:00,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:25:00,083 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:25:00,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:25:00,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:25:00,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:25:00,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:25:00,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:25:00,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:25:00,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:25:00,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:25:00,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:25:00,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:25:00,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:25:00,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:25:00,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:25:00,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:25:00,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:25:00,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:25:00,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:25:00,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:25:00,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:25:00,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:25:00,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:25:00,109 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:25:00,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:25:00,110 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:25:00,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:25:00,112 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:25:00,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:25:00,115 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 [2020-09-21 11:25:00,174 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:25:00,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:25:00,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:25:00,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:25:00,179 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:25:00,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:25:00,180 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:25:00,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:25:00,180 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:25:00,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:25:00,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:25:00,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:25:00,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:25:00,181 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:25:00,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:25:00,182 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:25:00,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:25:00,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:25:00,182 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:25:00,183 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:25:00,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:25:00,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:25:00,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:25:00,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:25:00,187 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:25:00,187 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:25:00,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:25:00,187 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:25:00,188 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:25:00,188 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.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;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:25:00,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:25:00,685 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:25:00,690 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:25:00,692 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:25:00,694 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:25:00,695 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label35.c [2020-09-21 11:25:00,792 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/748f9c46b/1ee09892a2e54149961f89cdbeaf6bc8/FLAG10fedfdb3 [2020-09-21 11:25:01,436 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:25:01,437 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label35.c [2020-09-21 11:25:01,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/748f9c46b/1ee09892a2e54149961f89cdbeaf6bc8/FLAG10fedfdb3 [2020-09-21 11:25:01,660 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/748f9c46b/1ee09892a2e54149961f89cdbeaf6bc8 [2020-09-21 11:25:01,673 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:25:01,679 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:25:01,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:25:01,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:25:01,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:25:01,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:25:01" (1/1) ... [2020-09-21 11:25:01,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55e164ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:01, skipping insertion in model container [2020-09-21 11:25:01,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:25:01" (1/1) ... [2020-09-21 11:25:01,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:25:01,793 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:25:02,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:25:02,409 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:25:02,669 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:25:02,709 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:25:02,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:02 WrapperNode [2020-09-21 11:25:02,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:25:02,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:25:02,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:25:02,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:25:02,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:02" (1/1) ... [2020-09-21 11:25:02,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:02" (1/1) ... [2020-09-21 11:25:02,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:02" (1/1) ... [2020-09-21 11:25:02,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:02" (1/1) ... [2020-09-21 11:25:02,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:02" (1/1) ... [2020-09-21 11:25:02,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:02" (1/1) ... [2020-09-21 11:25:02,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:02" (1/1) ... [2020-09-21 11:25:02,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:25:02,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:25:02,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:25:02,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:25:02,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:02" (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 [2020-09-21 11:25:02,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:25:02,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:25:02,957 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-21 11:25:02,957 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:25:02,957 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-21 11:25:02,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:25:02,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:25:02,958 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 11:25:02,958 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:25:02,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:25:02,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:25:04,243 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:25:04,244 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 11:25:04,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:25:04 BoogieIcfgContainer [2020-09-21 11:25:04,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:25:04,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:25:04,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:25:04,261 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:25:04,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:25:01" (1/3) ... [2020-09-21 11:25:04,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4445c8ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:25:04, skipping insertion in model container [2020-09-21 11:25:04,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:02" (2/3) ... [2020-09-21 11:25:04,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4445c8ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:25:04, skipping insertion in model container [2020-09-21 11:25:04,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:25:04" (3/3) ... [2020-09-21 11:25:04,270 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label35.c [2020-09-21 11:25:04,283 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:25:04,299 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:25:04,322 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:25:04,355 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:25:04,356 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:25:04,356 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:25:04,356 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:25:04,356 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:25:04,357 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:25:04,357 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:25:04,357 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:25:04,386 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-09-21 11:25:04,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-21 11:25:04,399 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:04,401 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] [2020-09-21 11:25:04,401 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:04,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:04,410 INFO L82 PathProgramCache]: Analyzing trace with hash 279627110, now seen corresponding path program 1 times [2020-09-21 11:25:04,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:04,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1954212464] [2020-09-21 11:25:04,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:04,775 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:04,776 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:04,776 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:04,776 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:04,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-21 11:25:04,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:04,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-21 11:25:04,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:04,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:25:04,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:25:04,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-21 11:25:04,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:05,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:05,112 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:05,112 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:05,112 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:05,113 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:05,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:05,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:05,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:25:05,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:05,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:05,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:05,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:25:05,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:05,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:25:05,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1954212464] [2020-09-21 11:25:05,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:25:05,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:25:05,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195206628] [2020-09-21 11:25:05,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:25:05,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:05,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:25:05,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:25:05,201 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-09-21 11:25:07,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:07,553 INFO L93 Difference]: Finished difference Result 698 states and 1233 transitions. [2020-09-21 11:25:07,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:25:07,559 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 86 [2020-09-21 11:25:07,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:07,609 INFO L225 Difference]: With dead ends: 698 [2020-09-21 11:25:07,610 INFO L226 Difference]: Without dead ends: 423 [2020-09-21 11:25:07,623 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:25:07,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-09-21 11:25:07,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2020-09-21 11:25:07,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-09-21 11:25:07,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 585 transitions. [2020-09-21 11:25:07,766 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 585 transitions. Word has length 86 [2020-09-21 11:25:07,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:07,767 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 585 transitions. [2020-09-21 11:25:07,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:25:07,768 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 585 transitions. [2020-09-21 11:25:07,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-09-21 11:25:07,774 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:07,774 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] [2020-09-21 11:25:07,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:25:07,775 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:07,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:07,776 INFO L82 PathProgramCache]: Analyzing trace with hash -53773379, now seen corresponding path program 1 times [2020-09-21 11:25:07,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:07,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1031272550] [2020-09-21 11:25:07,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:07,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:07,870 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:07,870 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:07,871 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:07,871 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:07,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-09-21 11:25:07,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:07,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-21 11:25:07,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:07,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:25:07,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:25:07,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:25:07,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:07,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:08,008 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:08,008 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:08,009 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:08,009 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:08,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:08,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:08,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:25:08,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:08,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:08,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:08,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:25:08,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:08,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:08,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:08,065 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:08,065 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:08,065 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:08,066 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:08,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:25:08,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:08,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:25:08,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:08,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:08,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:08,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:25:08,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:08,102 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:25:08,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1031272550] [2020-09-21 11:25:08,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:25:08,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:25:08,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614824243] [2020-09-21 11:25:08,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:25:08,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:08,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:25:08,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:25:08,107 INFO L87 Difference]: Start difference. First operand 417 states and 585 transitions. Second operand 8 states. [2020-09-21 11:25:09,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:09,740 INFO L93 Difference]: Finished difference Result 1130 states and 1658 transitions. [2020-09-21 11:25:09,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 11:25:09,741 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 96 [2020-09-21 11:25:09,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:09,747 INFO L225 Difference]: With dead ends: 1130 [2020-09-21 11:25:09,748 INFO L226 Difference]: Without dead ends: 719 [2020-09-21 11:25:09,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:25:09,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2020-09-21 11:25:09,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 697. [2020-09-21 11:25:09,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 697 states. [2020-09-21 11:25:09,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 978 transitions. [2020-09-21 11:25:09,850 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 978 transitions. Word has length 96 [2020-09-21 11:25:09,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:09,853 INFO L479 AbstractCegarLoop]: Abstraction has 697 states and 978 transitions. [2020-09-21 11:25:09,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:25:09,853 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 978 transitions. [2020-09-21 11:25:09,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-09-21 11:25:09,867 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:09,868 INFO L422 BasicCegarLoop]: trace histogram [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, 1] [2020-09-21 11:25:09,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:25:09,868 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:09,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:09,870 INFO L82 PathProgramCache]: Analyzing trace with hash -24478849, now seen corresponding path program 1 times [2020-09-21 11:25:09,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:09,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1106596013] [2020-09-21 11:25:09,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:09,986 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:09,986 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:09,986 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:09,987 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:09,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-21 11:25:09,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:09,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 11:25:09,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:09,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:09,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:25:09,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-21 11:25:09,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:10,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:10,152 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:10,153 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:10,153 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:10,153 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:10,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:10,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:10,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:10,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:10,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:10,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:10,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:10,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:10,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:10,181 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:10,182 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:10,182 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:10,182 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:10,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:25:10,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:10,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:10,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:10,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:10,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:10,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:25:10,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:10,201 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:25:10,202 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1106596013] [2020-09-21 11:25:10,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:10,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:25:10,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260275928] [2020-09-21 11:25:10,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:25:10,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:10,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:25:10,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:25:10,205 INFO L87 Difference]: Start difference. First operand 697 states and 978 transitions. Second operand 5 states. [2020-09-21 11:25:11,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:11,532 INFO L93 Difference]: Finished difference Result 1944 states and 2778 transitions. [2020-09-21 11:25:11,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:25:11,535 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2020-09-21 11:25:11,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:11,549 INFO L225 Difference]: With dead ends: 1944 [2020-09-21 11:25:11,549 INFO L226 Difference]: Without dead ends: 1253 [2020-09-21 11:25:11,552 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 [2020-09-21 11:25:11,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2020-09-21 11:25:11,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1112. [2020-09-21 11:25:11,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1112 states. [2020-09-21 11:25:11,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1478 transitions. [2020-09-21 11:25:11,598 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1478 transitions. Word has length 97 [2020-09-21 11:25:11,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:11,599 INFO L479 AbstractCegarLoop]: Abstraction has 1112 states and 1478 transitions. [2020-09-21 11:25:11,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:25:11,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1478 transitions. [2020-09-21 11:25:11,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-09-21 11:25:11,603 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:11,603 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 11:25:11,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:25:11,603 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:11,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:11,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1420356985, now seen corresponding path program 1 times [2020-09-21 11:25:11,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:11,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153831592] [2020-09-21 11:25:11,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:11,698 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:11,698 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:11,698 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:11,699 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:11,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-09-21 11:25:11,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:11,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-21 11:25:11,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:11,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:25:11,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:25:11,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:25:11,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:11,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:11,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:11,889 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:11,889 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:11,890 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:11,890 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:11,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:11,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:11,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:25:11,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:11,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:11,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:11,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:25:11,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:11,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:11,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:11,976 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:11,976 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:11,976 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:11,977 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:11,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 11:25:11,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:11,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-21 11:25:11,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:11,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:11,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:11,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:25:11,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:12,017 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:25:12,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [153831592] [2020-09-21 11:25:12,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:25:12,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:25:12,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233267812] [2020-09-21 11:25:12,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:25:12,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:12,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:25:12,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:25:12,020 INFO L87 Difference]: Start difference. First operand 1112 states and 1478 transitions. Second operand 8 states. [2020-09-21 11:25:14,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:14,673 INFO L93 Difference]: Finished difference Result 2711 states and 3842 transitions. [2020-09-21 11:25:14,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:25:14,674 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2020-09-21 11:25:14,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:14,688 INFO L225 Difference]: With dead ends: 2711 [2020-09-21 11:25:14,688 INFO L226 Difference]: Without dead ends: 1605 [2020-09-21 11:25:14,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:25:14,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1605 states. [2020-09-21 11:25:14,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1605 to 1422. [2020-09-21 11:25:14,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1422 states. [2020-09-21 11:25:14,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 1822 transitions. [2020-09-21 11:25:14,769 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 1822 transitions. Word has length 98 [2020-09-21 11:25:14,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:14,769 INFO L479 AbstractCegarLoop]: Abstraction has 1422 states and 1822 transitions. [2020-09-21 11:25:14,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:25:14,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 1822 transitions. [2020-09-21 11:25:14,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-09-21 11:25:14,773 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:14,774 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:14,774 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:25:14,774 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:14,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:14,774 INFO L82 PathProgramCache]: Analyzing trace with hash -579647982, now seen corresponding path program 1 times [2020-09-21 11:25:14,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:14,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1889060053] [2020-09-21 11:25:14,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:14,833 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:14,834 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:14,834 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:14,834 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:14,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-21 11:25:14,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:14,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:25:14,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:14,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:14,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:25:14,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:25:14,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:14,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:14,929 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:14,930 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:14,930 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:14,930 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:14,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:14,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:14,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:14,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:14,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:14,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:14,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:14,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:14,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:14,960 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:14,961 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:14,961 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:14,961 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:14,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:25:14,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:14,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:14,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:14,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:14,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:14,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:25:14,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:14,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 11:25:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:14,992 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:14,993 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:14,993 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:14,994 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:14,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 11:25:14,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:14,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:25:14,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:14,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:14,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:14,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:25:14,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:15,098 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:25:15,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1889060053] [2020-09-21 11:25:15,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:15,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:25:15,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285007128] [2020-09-21 11:25:15,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:25:15,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:15,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:25:15,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:25:15,101 INFO L87 Difference]: Start difference. First operand 1422 states and 1822 transitions. Second operand 7 states. [2020-09-21 11:25:16,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:16,559 INFO L93 Difference]: Finished difference Result 3116 states and 4069 transitions. [2020-09-21 11:25:16,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:25:16,559 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 109 [2020-09-21 11:25:16,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:16,567 INFO L225 Difference]: With dead ends: 3116 [2020-09-21 11:25:16,568 INFO L226 Difference]: Without dead ends: 1559 [2020-09-21 11:25:16,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:25:16,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2020-09-21 11:25:16,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1406. [2020-09-21 11:25:16,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1406 states. [2020-09-21 11:25:16,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 1670 transitions. [2020-09-21 11:25:16,645 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 1670 transitions. Word has length 109 [2020-09-21 11:25:16,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:16,646 INFO L479 AbstractCegarLoop]: Abstraction has 1406 states and 1670 transitions. [2020-09-21 11:25:16,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:25:16,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 1670 transitions. [2020-09-21 11:25:16,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-09-21 11:25:16,651 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:16,651 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:16,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:25:16,652 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:16,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:16,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1472539882, now seen corresponding path program 1 times [2020-09-21 11:25:16,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:16,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [443834956] [2020-09-21 11:25:16,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:16,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:16,726 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:16,727 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:16,727 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:16,727 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:16,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-09-21 11:25:16,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:16,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:25:16,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:16,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:16,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-21 11:25:16,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:25:16,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:16,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:16,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:16,829 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:16,829 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:16,829 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:16,830 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:16,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:16,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:16,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:16,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:16,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:16,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:16,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:16,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:16,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:16,865 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:16,865 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:16,865 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:16,866 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:16,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-21 11:25:16,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:16,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:25:16,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:16,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:16,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:16,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-21 11:25:16,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:16,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:25:16,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:16,915 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:16,916 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:16,916 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:16,916 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:16,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 11:25:16,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:16,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:25:16,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:16,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:16,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:16,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:25:16,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:16,990 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:25:16,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [443834956] [2020-09-21 11:25:16,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:16,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:25:16,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771975499] [2020-09-21 11:25:16,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:25:16,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:16,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:25:16,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:25:16,995 INFO L87 Difference]: Start difference. First operand 1406 states and 1670 transitions. Second operand 7 states. [2020-09-21 11:25:18,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:18,554 INFO L93 Difference]: Finished difference Result 3783 states and 4603 transitions. [2020-09-21 11:25:18,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:25:18,555 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 139 [2020-09-21 11:25:18,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:18,567 INFO L225 Difference]: With dead ends: 3783 [2020-09-21 11:25:18,567 INFO L226 Difference]: Without dead ends: 2246 [2020-09-21 11:25:18,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:25:18,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2020-09-21 11:25:18,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 1960. [2020-09-21 11:25:18,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1960 states. [2020-09-21 11:25:18,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1960 states to 1960 states and 2271 transitions. [2020-09-21 11:25:18,664 INFO L78 Accepts]: Start accepts. Automaton has 1960 states and 2271 transitions. Word has length 139 [2020-09-21 11:25:18,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:18,665 INFO L479 AbstractCegarLoop]: Abstraction has 1960 states and 2271 transitions. [2020-09-21 11:25:18,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:25:18,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1960 states and 2271 transitions. [2020-09-21 11:25:18,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-21 11:25:18,669 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:18,670 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:18,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:25:18,670 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:18,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:18,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1280922789, now seen corresponding path program 1 times [2020-09-21 11:25:18,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:18,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1124515367] [2020-09-21 11:25:18,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:18,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:18,744 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:18,745 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:18,745 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:18,745 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:18,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-09-21 11:25:18,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:18,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 11:25:18,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:18,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:25:18,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-21 11:25:18,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-21 11:25:18,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:18,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:18,861 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:18,861 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:18,861 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:18,861 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:18,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:18,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:18,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:18,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:18,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:18,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:18,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:18,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:18,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:18,890 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:18,890 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:18,891 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:18,891 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:18,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:25:18,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:18,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:25:18,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:18,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:18,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:18,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:25:18,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:18,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:25:18,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:18,927 FATAL L256 erpolLogProxyWrapper]: Difference in size: 3 [2020-09-21 11:25:18,928 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -1 [2020-09-21 11:25:18,928 FATAL L256 erpolLogProxyWrapper]: Difference in width: 6 [2020-09-21 11:25:18,928 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:18,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-21 11:25:18,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:18,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:18,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:18,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:18,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:18,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 11:25:18,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:18,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-09-21 11:25:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:18,974 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:18,974 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:18,974 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:18,974 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:18,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 11:25:18,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:18,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:25:18,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:18,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:18,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:18,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:25:18,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:19,037 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 75 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-21 11:25:19,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1124515367] [2020-09-21 11:25:19,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:19,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 11:25:19,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609714145] [2020-09-21 11:25:19,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:25:19,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:19,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:25:19,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:25:19,042 INFO L87 Difference]: Start difference. First operand 1960 states and 2271 transitions. Second operand 8 states. [2020-09-21 11:25:20,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:20,426 INFO L93 Difference]: Finished difference Result 4202 states and 4887 transitions. [2020-09-21 11:25:20,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:25:20,427 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 156 [2020-09-21 11:25:20,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:20,437 INFO L225 Difference]: With dead ends: 4202 [2020-09-21 11:25:20,437 INFO L226 Difference]: Without dead ends: 2248 [2020-09-21 11:25:20,442 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:25:20,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2248 states. [2020-09-21 11:25:20,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2248 to 2236. [2020-09-21 11:25:20,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2236 states. [2020-09-21 11:25:20,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 2532 transitions. [2020-09-21 11:25:20,507 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 2532 transitions. Word has length 156 [2020-09-21 11:25:20,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:20,508 INFO L479 AbstractCegarLoop]: Abstraction has 2236 states and 2532 transitions. [2020-09-21 11:25:20,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:25:20,509 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 2532 transitions. [2020-09-21 11:25:20,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-09-21 11:25:20,515 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:20,515 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:20,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:25:20,516 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:20,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:20,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1548720193, now seen corresponding path program 1 times [2020-09-21 11:25:20,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:20,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2060526713] [2020-09-21 11:25:20,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:20,609 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:20,609 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:20,609 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:20,609 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:20,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-09-21 11:25:20,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:20,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:25:20,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:20,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:20,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 131 [2020-09-21 11:25:20,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-21 11:25:20,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:20,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:20,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:20,738 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:20,739 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:20,739 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:20,739 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:20,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:20,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:20,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:20,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:20,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:20,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:20,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:20,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:20,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:20,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:20,766 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:20,766 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:20,766 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:20,767 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:20,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:25:20,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:20,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:20,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:20,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:20,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:20,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:20,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:20,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:25:20,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:20,778 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:20,778 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:20,778 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:20,779 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:20,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-21 11:25:20,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:20,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:20,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:20,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:20,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:20,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:20,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:20,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-09-21 11:25:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:20,846 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:20,846 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:20,846 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:20,847 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:20,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-21 11:25:20,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:20,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:25:20,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:20,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:20,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:20,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-21 11:25:20,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:20,933 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-09-21 11:25:20,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2060526713] [2020-09-21 11:25:20,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:20,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:25:20,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103325236] [2020-09-21 11:25:20,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:25:20,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:20,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:25:20,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:25:20,936 INFO L87 Difference]: Start difference. First operand 2236 states and 2532 transitions. Second operand 5 states. [2020-09-21 11:25:22,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:22,069 INFO L93 Difference]: Finished difference Result 4468 states and 5101 transitions. [2020-09-21 11:25:22,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:25:22,070 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 202 [2020-09-21 11:25:22,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:22,084 INFO L225 Difference]: With dead ends: 4468 [2020-09-21 11:25:22,084 INFO L226 Difference]: Without dead ends: 2373 [2020-09-21 11:25:22,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:25:22,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2373 states. [2020-09-21 11:25:22,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2373 to 1962. [2020-09-21 11:25:22,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-09-21 11:25:22,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2173 transitions. [2020-09-21 11:25:22,238 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2173 transitions. Word has length 202 [2020-09-21 11:25:22,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:22,239 INFO L479 AbstractCegarLoop]: Abstraction has 1962 states and 2173 transitions. [2020-09-21 11:25:22,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:25:22,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2173 transitions. [2020-09-21 11:25:22,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-21 11:25:22,245 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:22,245 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-21 11:25:22,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:25:22,246 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:22,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:22,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1898521026, now seen corresponding path program 1 times [2020-09-21 11:25:22,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:22,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [827482609] [2020-09-21 11:25:22,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:22,322 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:22,322 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:22,322 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:22,323 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:22,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-09-21 11:25:22,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:22,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:25:22,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:22,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:22,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-21 11:25:22,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-21 11:25:22,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:22,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:22,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:22,423 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:22,424 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:22,424 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:22,424 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:22,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:22,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:22,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:22,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:22,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:22,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:22,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:22,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:22,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:22,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:22,461 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:22,461 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:22,461 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:22,461 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:22,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-21 11:25:22,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:22,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:25:22,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:22,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:22,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:22,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-21 11:25:22,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:22,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:25:22,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:22,504 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:22,504 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:22,504 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:22,505 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:22,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-21 11:25:22,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:22,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:25:22,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:22,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:22,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:22,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:25:22,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:22,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-21 11:25:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:22,579 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:22,579 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:22,579 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:22,580 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:22,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:25:22,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:22,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:22,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:22,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:22,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:25:22,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:22,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:22,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-09-21 11:25:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:22,591 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:22,591 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:22,591 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:22,592 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:22,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 11:25:22,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:22,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:22,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:22,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:22,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:25:22,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:22,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:22,640 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 151 proven. 21 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-09-21 11:25:22,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [827482609] [2020-09-21 11:25:22,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:22,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:25:22,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718968854] [2020-09-21 11:25:22,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:25:22,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:22,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:25:22,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:25:22,649 INFO L87 Difference]: Start difference. First operand 1962 states and 2173 transitions. Second operand 7 states. [2020-09-21 11:25:24,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:24,145 INFO L93 Difference]: Finished difference Result 3932 states and 4368 transitions. [2020-09-21 11:25:24,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:25:24,145 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 203 [2020-09-21 11:25:24,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:24,197 INFO L225 Difference]: With dead ends: 3932 [2020-09-21 11:25:24,197 INFO L226 Difference]: Without dead ends: 2111 [2020-09-21 11:25:24,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:25:24,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2111 states. [2020-09-21 11:25:24,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2111 to 2101. [2020-09-21 11:25:24,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2101 states. [2020-09-21 11:25:24,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2101 states to 2101 states and 2308 transitions. [2020-09-21 11:25:24,245 INFO L78 Accepts]: Start accepts. Automaton has 2101 states and 2308 transitions. Word has length 203 [2020-09-21 11:25:24,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:24,246 INFO L479 AbstractCegarLoop]: Abstraction has 2101 states and 2308 transitions. [2020-09-21 11:25:24,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:25:24,246 INFO L276 IsEmpty]: Start isEmpty. Operand 2101 states and 2308 transitions. [2020-09-21 11:25:24,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-09-21 11:25:24,252 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:24,253 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-21 11:25:24,253 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:25:24,253 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:24,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:24,254 INFO L82 PathProgramCache]: Analyzing trace with hash 644895239, now seen corresponding path program 1 times [2020-09-21 11:25:24,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:24,254 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1742063258] [2020-09-21 11:25:24,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:24,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:24,326 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:24,326 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:24,326 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:24,327 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:24,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-21 11:25:24,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:24,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 11:25:24,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:24,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:25:24,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-21 11:25:24,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-21 11:25:24,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:24,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:24,429 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:24,429 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:24,430 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:24,430 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:24,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:24,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:24,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:24,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:24,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:24,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:24,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:24,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:24,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:24,464 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:24,464 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:24,465 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:24,465 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:24,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:25:24,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:24,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:25:24,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:24,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:24,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:24,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:25:24,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:24,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:25:24,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:24,491 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:24,492 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:24,492 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:24,492 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:24,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-21 11:25:24,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:24,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:25:24,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:24,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:24,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:24,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 11:25:24,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:24,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-09-21 11:25:24,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:24,533 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:24,533 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:24,533 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:24,534 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:24,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-21 11:25:24,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:24,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:25:24,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:24,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:24,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:24,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:25:24,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:24,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-21 11:25:24,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:24,592 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:24,593 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:24,593 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:24,593 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:24,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:25:24,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:24,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:24,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:24,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:24,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:25:24,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:24,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:24,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-21 11:25:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:24,604 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:24,604 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:24,604 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:24,604 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:24,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 11:25:24,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:24,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:24,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:24,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:24,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:25:24,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:24,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:24,649 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 187 proven. 27 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-09-21 11:25:24,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1742063258] [2020-09-21 11:25:24,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:24,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 11:25:24,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674631045] [2020-09-21 11:25:24,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:25:24,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:24,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:25:24,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:25:24,652 INFO L87 Difference]: Start difference. First operand 2101 states and 2308 transitions. Second operand 8 states. [2020-09-21 11:25:25,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:25,961 INFO L93 Difference]: Finished difference Result 4611 states and 5106 transitions. [2020-09-21 11:25:25,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:25:25,962 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 220 [2020-09-21 11:25:25,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:25,972 INFO L225 Difference]: With dead ends: 4611 [2020-09-21 11:25:25,973 INFO L226 Difference]: Without dead ends: 2651 [2020-09-21 11:25:25,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:25:25,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2651 states. [2020-09-21 11:25:26,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2651 to 2242. [2020-09-21 11:25:26,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2242 states. [2020-09-21 11:25:26,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2242 states to 2242 states and 2464 transitions. [2020-09-21 11:25:26,040 INFO L78 Accepts]: Start accepts. Automaton has 2242 states and 2464 transitions. Word has length 220 [2020-09-21 11:25:26,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:26,040 INFO L479 AbstractCegarLoop]: Abstraction has 2242 states and 2464 transitions. [2020-09-21 11:25:26,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:25:26,041 INFO L276 IsEmpty]: Start isEmpty. Operand 2242 states and 2464 transitions. [2020-09-21 11:25:26,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-21 11:25:26,047 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:26,047 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:26,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:25:26,048 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:26,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:26,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1888187350, now seen corresponding path program 1 times [2020-09-21 11:25:26,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:26,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [123062185] [2020-09-21 11:25:26,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:25:26,155 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:25:26,155 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:25:26,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:25:26,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:25:26 BoogieIcfgContainer [2020-09-21 11:25:26,249 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:25:26,255 INFO L168 Benchmark]: Toolchain (without parser) took 24577.13 ms. Allocated memory was 140.0 MB in the beginning and 540.5 MB in the end (delta: 400.6 MB). Free memory was 101.8 MB in the beginning and 88.1 MB in the end (delta: 13.7 MB). Peak memory consumption was 414.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:25:26,256 INFO L168 Benchmark]: CDTParser took 0.76 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 11:25:26,260 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1029.47 ms. Allocated memory was 140.0 MB in the beginning and 205.5 MB in the end (delta: 65.5 MB). Free memory was 101.1 MB in the beginning and 169.9 MB in the end (delta: -68.8 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:25:26,261 INFO L168 Benchmark]: Boogie Preprocessor took 137.78 ms. Allocated memory is still 205.5 MB. Free memory was 169.9 MB in the beginning and 164.9 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:25:26,264 INFO L168 Benchmark]: RCFGBuilder took 1406.33 ms. Allocated memory was 205.5 MB in the beginning and 239.6 MB in the end (delta: 34.1 MB). Free memory was 164.9 MB in the beginning and 180.7 MB in the end (delta: -15.8 MB). Peak memory consumption was 80.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:25:26,266 INFO L168 Benchmark]: TraceAbstraction took 21992.81 ms. Allocated memory was 239.6 MB in the beginning and 540.5 MB in the end (delta: 300.9 MB). Free memory was 179.2 MB in the beginning and 88.1 MB in the end (delta: 91.1 MB). Peak memory consumption was 392.1 MB. Max. memory is 7.1 GB. [2020-09-21 11:25:26,277 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1029.47 ms. Allocated memory was 140.0 MB in the beginning and 205.5 MB in the end (delta: 65.5 MB). Free memory was 101.1 MB in the beginning and 169.9 MB in the end (delta: -68.8 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 137.78 ms. Allocated memory is still 205.5 MB. Free memory was 169.9 MB in the beginning and 164.9 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1406.33 ms. Allocated memory was 205.5 MB in the beginning and 239.6 MB in the end (delta: 34.1 MB). Free memory was 164.9 MB in the beginning and 180.7 MB in the end (delta: -15.8 MB). Peak memory consumption was 80.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21992.81 ms. Allocated memory was 239.6 MB in the beginning and 540.5 MB in the end (delta: 300.9 MB). Free memory was 179.2 MB in the beginning and 88.1 MB in the end (delta: 91.1 MB). Peak memory consumption was 392.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 416]: 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 TRUE (((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)) [L55] a7 = 0 [L56] a20 = 1 [L57] a21 = 1 [L58] a16 = 4 [L59] a17 = 1 [L60] a8 = 13 [L61] 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 TRUE (((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==4))&&(a21==1)) [L416] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.8s, OverallIterations: 11, TraceHistogramMax: 6, AutomataDifference: 16.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 291 SDtfs, 4409 SDslu, 407 SDs, 0 SdLazy, 8409 SolverSat, 1268 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 163 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2242occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 1633 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1631 NumberOfCodeBlocks, 1631 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1396 ConstructedInterpolants, 0 QuantifiedInterpolants, 636679 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 784/844 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...