/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label50.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 19:05:28,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 19:05:28,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 19:05:28,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 19:05:28,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 19:05:28,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 19:05:28,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 19:05:28,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 19:05:28,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 19:05:28,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 19:05:28,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 19:05:28,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 19:05:28,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 19:05:28,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 19:05:28,104 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 19:05:28,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 19:05:28,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 19:05:28,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 19:05:28,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 19:05:28,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 19:05:28,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 19:05:28,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 19:05:28,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 19:05:28,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 19:05:28,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 19:05:28,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 19:05:28,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 19:05:28,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 19:05:28,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 19:05:28,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 19:05:28,119 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 19:05:28,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 19:05:28,121 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 19:05:28,122 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 19:05:28,123 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 19:05:28,123 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 19:05:28,123 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 19:05:28,124 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 19:05:28,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 19:05:28,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 19:05:28,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 19:05:28,126 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 19:05:28,148 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 19:05:28,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 19:05:28,149 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 19:05:28,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 19:05:28,150 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 19:05:28,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 19:05:28,150 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 19:05:28,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 19:05:28,151 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 19:05:28,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 19:05:28,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 19:05:28,151 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 19:05:28,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 19:05:28,152 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 19:05:28,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 19:05:28,152 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 19:05:28,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 19:05:28,152 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 19:05:28,152 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 19:05:28,153 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 19:05:28,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 19:05:28,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 19:05:28,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 19:05:28,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 19:05:28,154 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 19:05:28,154 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 19:05:28,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 19:05:28,154 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 19:05:28,154 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 19:05:28,155 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 19:05:28,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 19:05:28,472 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 19:05:28,475 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 19:05:28,477 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 19:05:28,478 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 19:05:28,478 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label50.c [2020-10-14 19:05:28,549 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5f63e928/b70f788e669b4ab9be36be5bdbedd64b/FLAG4eaae5562 [2020-10-14 19:05:29,115 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 19:05:29,116 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label50.c [2020-10-14 19:05:29,134 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5f63e928/b70f788e669b4ab9be36be5bdbedd64b/FLAG4eaae5562 [2020-10-14 19:05:29,401 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5f63e928/b70f788e669b4ab9be36be5bdbedd64b [2020-10-14 19:05:29,411 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 19:05:29,413 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 19:05:29,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 19:05:29,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 19:05:29,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 19:05:29,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:05:29" (1/1) ... [2020-10-14 19:05:29,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@532b1c07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:29, skipping insertion in model container [2020-10-14 19:05:29,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:05:29" (1/1) ... [2020-10-14 19:05:29,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 19:05:29,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 19:05:30,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:05:30,105 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 19:05:30,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:05:30,260 INFO L208 MainTranslator]: Completed translation [2020-10-14 19:05:30,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:30 WrapperNode [2020-10-14 19:05:30,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 19:05:30,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 19:05:30,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 19:05:30,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 19:05:30,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:30" (1/1) ... [2020-10-14 19:05:30,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:30" (1/1) ... [2020-10-14 19:05:30,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:30" (1/1) ... [2020-10-14 19:05:30,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:30" (1/1) ... [2020-10-14 19:05:30,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:30" (1/1) ... [2020-10-14 19:05:30,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:30" (1/1) ... [2020-10-14 19:05:30,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:30" (1/1) ... [2020-10-14 19:05:30,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 19:05:30,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 19:05:30,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 19:05:30,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 19:05:30,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:30" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 19:05:30,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 19:05:30,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 19:05:30,428 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 19:05:30,428 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 19:05:30,428 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 19:05:30,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 19:05:30,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 19:05:30,429 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 19:05:30,429 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 19:05:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 19:05:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 19:05:31,514 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 19:05:31,514 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 19:05:31,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:05:31 BoogieIcfgContainer [2020-10-14 19:05:31,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 19:05:31,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 19:05:31,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 19:05:31,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 19:05:31,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:05:29" (1/3) ... [2020-10-14 19:05:31,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac6017a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:05:31, skipping insertion in model container [2020-10-14 19:05:31,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:30" (2/3) ... [2020-10-14 19:05:31,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac6017a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:05:31, skipping insertion in model container [2020-10-14 19:05:31,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:05:31" (3/3) ... [2020-10-14 19:05:31,538 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label50.c [2020-10-14 19:05:31,548 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 19:05:31,560 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 19:05:31,575 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 19:05:31,609 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 19:05:31,610 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 19:05:31,611 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 19:05:31,611 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 19:05:31,611 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 19:05:31,611 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 19:05:31,612 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 19:05:31,612 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 19:05:31,632 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-14 19:05:31,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-14 19:05:31,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:31,643 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:05:31,643 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:31,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:31,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1653547897, now seen corresponding path program 1 times [2020-10-14 19:05:31,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:31,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749757271] [2020-10-14 19:05:31,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:31,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:32,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:32,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:33,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:33,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 19:05:33,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:05:33,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1470 [2020-10-14 19:05:33,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:33,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:33,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:05:33,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:05:33,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 19:05:33,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 19:05:33,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:33,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:33,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:33,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:33,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:33,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 19:05:33,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:33,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:33,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:33,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:33,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:05:33,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:33,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:05:33,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1749757271] [2020-10-14 19:05:33,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 19:05:33,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 19:05:33,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044833264] [2020-10-14 19:05:33,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 19:05:33,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:33,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 19:05:33,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 19:05:33,727 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 4 states. [2020-10-14 19:05:33,905 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-14 19:05:35,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:35,244 INFO L93 Difference]: Finished difference Result 557 states and 956 transitions. [2020-10-14 19:05:35,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:05:35,246 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 85 [2020-10-14 19:05:35,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:35,262 INFO L225 Difference]: With dead ends: 557 [2020-10-14 19:05:35,262 INFO L226 Difference]: Without dead ends: 286 [2020-10-14 19:05:35,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:05:35,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-14 19:05:35,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2020-10-14 19:05:35,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-10-14 19:05:35,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 402 transitions. [2020-10-14 19:05:35,345 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 402 transitions. Word has length 85 [2020-10-14 19:05:35,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:35,346 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 402 transitions. [2020-10-14 19:05:35,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 19:05:35,346 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 402 transitions. [2020-10-14 19:05:35,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-14 19:05:35,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:35,352 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:05:35,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 19:05:35,352 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:35,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:35,353 INFO L82 PathProgramCache]: Analyzing trace with hash 2076475216, now seen corresponding path program 1 times [2020-10-14 19:05:35,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:35,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1547964186] [2020-10-14 19:05:35,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:35,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:35,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:36,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:36,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:36,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 19:05:36,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:05:36,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-10-14 19:05:36,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:36,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:36,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:36,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 19:05:36,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 19:05:36,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:36,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:36,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:36,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:36,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:36,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:36,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 19:05:36,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:36,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:36,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:36,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:36,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:36,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:36,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:05:36,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:36,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:36,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:36,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 19:05:36,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:36,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 19:05:36,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:36,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:36,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:36,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:36,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 19:05:36,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:36,572 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:05:36,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1547964186] [2020-10-14 19:05:36,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:05:36,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 19:05:36,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422855752] [2020-10-14 19:05:36,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 19:05:36,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:36,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 19:05:36,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:05:36,576 INFO L87 Difference]: Start difference. First operand 280 states and 402 transitions. Second operand 6 states. [2020-10-14 19:05:38,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:38,356 INFO L93 Difference]: Finished difference Result 1108 states and 1636 transitions. [2020-10-14 19:05:38,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 19:05:38,357 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 95 [2020-10-14 19:05:38,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:38,365 INFO L225 Difference]: With dead ends: 1108 [2020-10-14 19:05:38,366 INFO L226 Difference]: Without dead ends: 834 [2020-10-14 19:05:38,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 19:05:38,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-10-14 19:05:38,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 693. [2020-10-14 19:05:38,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2020-10-14 19:05:38,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 980 transitions. [2020-10-14 19:05:38,438 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 980 transitions. Word has length 95 [2020-10-14 19:05:38,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:38,439 INFO L479 AbstractCegarLoop]: Abstraction has 693 states and 980 transitions. [2020-10-14 19:05:38,439 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 19:05:38,439 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 980 transitions. [2020-10-14 19:05:38,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-14 19:05:38,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:38,445 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:05:38,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 19:05:38,445 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:38,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:38,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1409491302, now seen corresponding path program 1 times [2020-10-14 19:05:38,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:38,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1288558440] [2020-10-14 19:05:38,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:38,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:38,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:38,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 19:05:38,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:38,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 337 [2020-10-14 19:05:38,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:38,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:38,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:05:38,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:05:38,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 19:05:38,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:38,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:38,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:38,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:38,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:38,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:38,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:38,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 19:05:38,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:38,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:38,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:38,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:38,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:05:38,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:38,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:05:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:38,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:38,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:38,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 19:05:38,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:38,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 19:05:38,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:38,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:38,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:38,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:38,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 19:05:38,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:39,005 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:05:39,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1288558440] [2020-10-14 19:05:39,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 19:05:39,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 19:05:39,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665575999] [2020-10-14 19:05:39,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:05:39,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:39,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:05:39,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:05:39,007 INFO L87 Difference]: Start difference. First operand 693 states and 980 transitions. Second operand 7 states. [2020-10-14 19:05:40,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:40,470 INFO L93 Difference]: Finished difference Result 1857 states and 2827 transitions. [2020-10-14 19:05:40,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 19:05:40,473 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 102 [2020-10-14 19:05:40,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:40,488 INFO L225 Difference]: With dead ends: 1857 [2020-10-14 19:05:40,488 INFO L226 Difference]: Without dead ends: 1170 [2020-10-14 19:05:40,492 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 19:05:40,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2020-10-14 19:05:40,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 979. [2020-10-14 19:05:40,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 979 states. [2020-10-14 19:05:40,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1341 transitions. [2020-10-14 19:05:40,596 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1341 transitions. Word has length 102 [2020-10-14 19:05:40,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:40,597 INFO L479 AbstractCegarLoop]: Abstraction has 979 states and 1341 transitions. [2020-10-14 19:05:40,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:05:40,598 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1341 transitions. [2020-10-14 19:05:40,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-14 19:05:40,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:40,616 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:05:40,618 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 19:05:40,619 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:40,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:40,619 INFO L82 PathProgramCache]: Analyzing trace with hash 215117109, now seen corresponding path program 1 times [2020-10-14 19:05:40,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:40,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064420181] [2020-10-14 19:05:40,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:40,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:40,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:40,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:41,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:41,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-14 19:05:41,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:05:41,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 800 [2020-10-14 19:05:41,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:41,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:41,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 19:05:41,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:05:41,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 19:05:41,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-14 19:05:41,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:41,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:41,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:41,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:41,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:41,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 19:05:41,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:41,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:41,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:41,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:41,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:05:41,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:41,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:05:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:41,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:41,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:41,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:41,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 19:05:41,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:05:41,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 19:05:41,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:41,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:41,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:41,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:41,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 19:05:41,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:41,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 19:05:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:41,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:41,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:41,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 19:05:41,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:41,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 19:05:41,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:41,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:41,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:41,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:41,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 19:05:41,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:41,845 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 19:05:41,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1064420181] [2020-10-14 19:05:41,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:05:41,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:05:41,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211788882] [2020-10-14 19:05:41,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 19:05:41,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:41,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 19:05:41,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 19:05:41,852 INFO L87 Difference]: Start difference. First operand 979 states and 1341 transitions. Second operand 8 states. [2020-10-14 19:05:43,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:43,353 INFO L93 Difference]: Finished difference Result 2679 states and 3851 transitions. [2020-10-14 19:05:43,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 19:05:43,353 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 110 [2020-10-14 19:05:43,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:43,362 INFO L225 Difference]: With dead ends: 2679 [2020-10-14 19:05:43,362 INFO L226 Difference]: Without dead ends: 1555 [2020-10-14 19:05:43,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-14 19:05:43,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2020-10-14 19:05:43,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1267. [2020-10-14 19:05:43,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1267 states. [2020-10-14 19:05:43,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1267 states to 1267 states and 1564 transitions. [2020-10-14 19:05:43,418 INFO L78 Accepts]: Start accepts. Automaton has 1267 states and 1564 transitions. Word has length 110 [2020-10-14 19:05:43,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:43,419 INFO L479 AbstractCegarLoop]: Abstraction has 1267 states and 1564 transitions. [2020-10-14 19:05:43,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 19:05:43,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1267 states and 1564 transitions. [2020-10-14 19:05:43,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-14 19:05:43,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:43,423 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 19:05:43,423 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 19:05:43,423 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:43,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:43,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1610941859, now seen corresponding path program 1 times [2020-10-14 19:05:43,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:43,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [775053324] [2020-10-14 19:05:43,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:43,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:43,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:44,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:44,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 19:05:44,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:05:44,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 981 [2020-10-14 19:05:44,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:44,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:44,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:44,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 19:05:44,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 19:05:44,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:44,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:44,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:44,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:44,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:44,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:44,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:44,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:05:44,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:44,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:44,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:44,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:44,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:44,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:44,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:05:44,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:44,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:44,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:44,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 19:05:44,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:44,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 19:05:44,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:44,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:44,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:44,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:44,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 19:05:44,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:44,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 19:05:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:44,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:44,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:44,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 19:05:44,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:44,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 19:05:44,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:44,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:44,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:44,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:44,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 19:05:44,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:44,667 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 19:05:44,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [775053324] [2020-10-14 19:05:44,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:05:44,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:05:44,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615664560] [2020-10-14 19:05:44,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:05:44,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:44,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:05:44,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:05:44,670 INFO L87 Difference]: Start difference. First operand 1267 states and 1564 transitions. Second operand 7 states. [2020-10-14 19:05:45,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:45,737 INFO L93 Difference]: Finished difference Result 3219 states and 4109 transitions. [2020-10-14 19:05:45,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 19:05:45,738 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 121 [2020-10-14 19:05:45,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:45,750 INFO L225 Difference]: With dead ends: 3219 [2020-10-14 19:05:45,750 INFO L226 Difference]: Without dead ends: 1956 [2020-10-14 19:05:45,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 19:05:45,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956 states. [2020-10-14 19:05:45,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956 to 1543. [2020-10-14 19:05:45,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1543 states. [2020-10-14 19:05:45,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 1862 transitions. [2020-10-14 19:05:45,816 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 1862 transitions. Word has length 121 [2020-10-14 19:05:45,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:45,817 INFO L479 AbstractCegarLoop]: Abstraction has 1543 states and 1862 transitions. [2020-10-14 19:05:45,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:05:45,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 1862 transitions. [2020-10-14 19:05:45,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-14 19:05:45,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:45,821 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:05:45,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 19:05:45,821 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:45,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:45,822 INFO L82 PathProgramCache]: Analyzing trace with hash 181160116, now seen corresponding path program 1 times [2020-10-14 19:05:45,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:45,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524042601] [2020-10-14 19:05:45,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:45,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:45,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:46,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:46,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 19:05:46,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:05:46,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 643 [2020-10-14 19:05:46,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:46,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:46,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:05:46,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 19:05:46,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 19:05:46,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:46,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:46,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:46,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:46,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:46,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:46,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:05:46,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:46,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:46,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:46,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:46,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:46,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:46,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:05:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:46,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:46,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:46,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 19:05:46,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:46,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 19:05:46,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:46,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:46,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 19:05:46,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:46,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 19:05:46,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:46,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:46,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:46,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:46,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 19:05:46,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:05:46,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 19:05:46,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:46,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:46,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:46,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:46,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 19:05:46,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:46,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 19:05:46,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:46,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:46,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:46,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 19:05:46,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:46,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 19:05:46,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:46,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:46,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:46,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:46,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 19:05:46,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:46,748 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 45 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-14 19:05:46,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524042601] [2020-10-14 19:05:46,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:05:46,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 19:05:46,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516571731] [2020-10-14 19:05:46,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 19:05:46,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:46,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 19:05:46,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-14 19:05:46,751 INFO L87 Difference]: Start difference. First operand 1543 states and 1862 transitions. Second operand 8 states. [2020-10-14 19:05:47,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:47,916 INFO L93 Difference]: Finished difference Result 3630 states and 4399 transitions. [2020-10-14 19:05:47,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 19:05:47,918 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 123 [2020-10-14 19:05:47,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:47,928 INFO L225 Difference]: With dead ends: 3630 [2020-10-14 19:05:47,928 INFO L226 Difference]: Without dead ends: 2093 [2020-10-14 19:05:47,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-10-14 19:05:47,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2093 states. [2020-10-14 19:05:47,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2093 to 1821. [2020-10-14 19:05:47,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1821 states. [2020-10-14 19:05:47,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2215 transitions. [2020-10-14 19:05:47,991 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2215 transitions. Word has length 123 [2020-10-14 19:05:47,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:47,993 INFO L479 AbstractCegarLoop]: Abstraction has 1821 states and 2215 transitions. [2020-10-14 19:05:47,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 19:05:47,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2215 transitions. [2020-10-14 19:05:47,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-14 19:05:47,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:47,998 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:05:47,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 19:05:47,999 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:47,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:47,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1339987257, now seen corresponding path program 1 times [2020-10-14 19:05:47,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:48,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [599475324] [2020-10-14 19:05:48,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:48,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:48,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:49,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:49,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-14 19:05:49,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:05:49,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1150 [2020-10-14 19:05:49,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:49,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:49,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:05:49,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:05:49,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 19:05:49,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:49,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:49,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:49,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:49,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:49,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:49,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:49,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 19:05:49,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:49,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:49,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:49,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:49,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:05:49,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:49,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:05:49,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:49,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:49,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:49,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 19:05:49,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:49,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 19:05:49,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:49,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:49,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:49,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:49,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 19:05:49,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:49,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 19:05:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:49,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:49,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:49,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 19:05:49,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:49,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 19:05:49,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:49,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:49,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:49,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 19:05:49,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:49,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:49,477 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 44 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 19:05:49,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [599475324] [2020-10-14 19:05:49,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:05:49,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:05:49,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505808303] [2020-10-14 19:05:49,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:05:49,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:49,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:05:49,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:05:49,482 INFO L87 Difference]: Start difference. First operand 1821 states and 2215 transitions. Second operand 7 states. [2020-10-14 19:05:50,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:50,850 INFO L93 Difference]: Finished difference Result 3781 states and 4603 transitions. [2020-10-14 19:05:50,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 19:05:50,850 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 135 [2020-10-14 19:05:50,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:50,861 INFO L225 Difference]: With dead ends: 3781 [2020-10-14 19:05:50,861 INFO L226 Difference]: Without dead ends: 1966 [2020-10-14 19:05:50,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 19:05:50,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states. [2020-10-14 19:05:50,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1962. [2020-10-14 19:05:50,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-10-14 19:05:50,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2357 transitions. [2020-10-14 19:05:50,927 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2357 transitions. Word has length 135 [2020-10-14 19:05:50,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:50,927 INFO L479 AbstractCegarLoop]: Abstraction has 1962 states and 2357 transitions. [2020-10-14 19:05:50,927 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:05:50,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2357 transitions. [2020-10-14 19:05:50,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-14 19:05:50,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:50,933 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 19:05:50,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 19:05:50,933 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:50,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:50,933 INFO L82 PathProgramCache]: Analyzing trace with hash 22086485, now seen corresponding path program 1 times [2020-10-14 19:05:50,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:50,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1202241918] [2020-10-14 19:05:50,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:50,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:51,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:51,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:52,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:52,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-14 19:05:52,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:05:52,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1551 [2020-10-14 19:05:52,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:52,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:52,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:05:52,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 19:05:52,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 19:05:52,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 19:05:52,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:52,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:52,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:52,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:52,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:52,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:52,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 19:05:52,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:52,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:52,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:52,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:52,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:52,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:52,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:05:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:52,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:52,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:52,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 19:05:52,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:52,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:05:52,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:52,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:52,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:52,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:52,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 19:05:52,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:52,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 19:05:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:52,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:52,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:52,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 19:05:52,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:52,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 19:05:52,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:52,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:52,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:52,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:52,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-14 19:05:52,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:52,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 19:05:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:52,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:52,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:52,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 19:05:52,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:52,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 19:05:52,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:52,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:52,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:52,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:52,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 19:05:52,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:52,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 19:05:52,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:52,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:52,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:52,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 19:05:52,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:52,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 19:05:52,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:52,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:52,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:52,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 19:05:52,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:52,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:52,879 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 90 proven. 26 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-14 19:05:52,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1202241918] [2020-10-14 19:05:52,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:05:52,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 19:05:52,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835133390] [2020-10-14 19:05:52,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 19:05:52,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:52,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 19:05:52,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 19:05:52,882 INFO L87 Difference]: Start difference. First operand 1962 states and 2357 transitions. Second operand 8 states. [2020-10-14 19:05:55,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:55,026 INFO L93 Difference]: Finished difference Result 4206 states and 5071 transitions. [2020-10-14 19:05:55,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 19:05:55,027 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 169 [2020-10-14 19:05:55,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:55,039 INFO L225 Difference]: With dead ends: 4206 [2020-10-14 19:05:55,040 INFO L226 Difference]: Without dead ends: 2385 [2020-10-14 19:05:55,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-14 19:05:55,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2385 states. [2020-10-14 19:05:55,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2385 to 2242. [2020-10-14 19:05:55,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2242 states. [2020-10-14 19:05:55,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2242 states to 2242 states and 2524 transitions. [2020-10-14 19:05:55,112 INFO L78 Accepts]: Start accepts. Automaton has 2242 states and 2524 transitions. Word has length 169 [2020-10-14 19:05:55,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:55,113 INFO L479 AbstractCegarLoop]: Abstraction has 2242 states and 2524 transitions. [2020-10-14 19:05:55,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 19:05:55,113 INFO L276 IsEmpty]: Start isEmpty. Operand 2242 states and 2524 transitions. [2020-10-14 19:05:55,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-14 19:05:55,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:55,121 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 19:05:55,121 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 19:05:55,121 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:55,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:55,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1997229238, now seen corresponding path program 1 times [2020-10-14 19:05:55,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:55,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1024538490] [2020-10-14 19:05:55,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:55,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:55,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:55,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:55,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-14 19:05:55,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:55,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 342 [2020-10-14 19:05:55,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:55,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:55,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:55,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 19:05:55,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 19:05:55,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:55,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:55,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:55,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:55,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:55,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:55,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:55,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 19:05:55,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:55,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:55,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:55,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:55,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:55,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 19:05:55,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:05:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:55,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:55,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:55,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 19:05:55,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:55,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 19:05:55,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:55,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:55,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:55,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:55,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:55,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:55,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 19:05:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:55,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:55,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:55,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 19:05:55,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:55,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 19:05:55,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:55,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:55,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:55,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:55,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 19:05:55,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:55,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 19:05:55,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:55,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:55,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:55,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 19:05:55,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:55,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 19:05:55,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:55,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:55,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:55,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:55,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 19:05:55,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:55,829 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-14 19:05:55,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1024538490] [2020-10-14 19:05:55,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:05:55,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:05:55,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164062201] [2020-10-14 19:05:55,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:05:55,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:55,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:05:55,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:05:55,837 INFO L87 Difference]: Start difference. First operand 2242 states and 2524 transitions. Second operand 7 states. [2020-10-14 19:05:57,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:57,363 INFO L93 Difference]: Finished difference Result 4774 states and 5477 transitions. [2020-10-14 19:05:57,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 19:05:57,364 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 176 [2020-10-14 19:05:57,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:57,380 INFO L225 Difference]: With dead ends: 4774 [2020-10-14 19:05:57,380 INFO L226 Difference]: Without dead ends: 2534 [2020-10-14 19:05:57,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 19:05:57,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2534 states. [2020-10-14 19:05:57,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2534 to 2375. [2020-10-14 19:05:57,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2375 states. [2020-10-14 19:05:57,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2375 states to 2375 states and 2641 transitions. [2020-10-14 19:05:57,472 INFO L78 Accepts]: Start accepts. Automaton has 2375 states and 2641 transitions. Word has length 176 [2020-10-14 19:05:57,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:57,472 INFO L479 AbstractCegarLoop]: Abstraction has 2375 states and 2641 transitions. [2020-10-14 19:05:57,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:05:57,472 INFO L276 IsEmpty]: Start isEmpty. Operand 2375 states and 2641 transitions. [2020-10-14 19:05:57,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-10-14 19:05:57,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:57,480 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 19:05:57,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 19:05:57,480 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:57,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:57,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1816850039, now seen corresponding path program 1 times [2020-10-14 19:05:57,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:57,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1036179214] [2020-10-14 19:05:57,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:57,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 19:05:57,550 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 19:05:57,550 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 19:05:57,557 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 19:05:57,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:05:57 BoogieIcfgContainer [2020-10-14 19:05:57,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 19:05:57,623 INFO L168 Benchmark]: Toolchain (without parser) took 28209.92 ms. Allocated memory was 146.8 MB in the beginning and 666.4 MB in the end (delta: 519.6 MB). Free memory was 101.1 MB in the beginning and 465.1 MB in the end (delta: -364.0 MB). Peak memory consumption was 155.6 MB. Max. memory is 7.1 GB. [2020-10-14 19:05:57,623 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-14 19:05:57,624 INFO L168 Benchmark]: CACSL2BoogieTranslator took 847.87 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 101.1 MB in the beginning and 169.0 MB in the end (delta: -67.9 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. [2020-10-14 19:05:57,627 INFO L168 Benchmark]: Boogie Preprocessor took 100.53 ms. Allocated memory is still 203.9 MB. Free memory was 169.0 MB in the beginning and 163.9 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-10-14 19:05:57,628 INFO L168 Benchmark]: RCFGBuilder took 1163.35 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 163.9 MB in the beginning and 175.9 MB in the end (delta: -12.0 MB). Peak memory consumption was 79.6 MB. Max. memory is 7.1 GB. [2020-10-14 19:05:57,631 INFO L168 Benchmark]: TraceAbstraction took 26091.97 ms. Allocated memory was 237.0 MB in the beginning and 666.4 MB in the end (delta: 429.4 MB). Free memory was 175.9 MB in the beginning and 465.1 MB in the end (delta: -289.1 MB). Peak memory consumption was 140.2 MB. Max. memory is 7.1 GB. [2020-10-14 19:05:57,641 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 847.87 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 101.1 MB in the beginning and 169.0 MB in the end (delta: -67.9 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.53 ms. Allocated memory is still 203.9 MB. Free memory was 169.0 MB in the beginning and 163.9 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1163.35 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 163.9 MB in the beginning and 175.9 MB in the end (delta: -12.0 MB). Peak memory consumption was 79.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 26091.97 ms. Allocated memory was 237.0 MB in the beginning and 666.4 MB in the end (delta: 429.4 MB). Free memory was 175.9 MB in the beginning and 465.1 MB in the end (delta: -289.1 MB). Peak memory consumption was 140.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 413]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L7] int a= 1; [L8] int d= 4; [L9] int e= 5; [L10] int f= 6; [L11] int c= 3; [L12] int b= 2; [L15] int u = 21; [L16] int v = 22; [L17] int w = 23; [L18] int x = 24; [L19] int y = 25; [L20] int z = 26; [L22] int a17 = 1; [L23] int a7 = 0; [L24] int a20 = 1; [L25] int a8 = 15; [L26] int a12 = 8; [L27] int a16 = 5; [L28] int a21 = 1; [L580] int output = -1; [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L273] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L278] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L286] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L292] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L299] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L306] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L312] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L316] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L318] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L324] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L329] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L333] COND TRUE ((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15))) [L334] a17 = 0 [L335] a16 = 4 [L336] return 21; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND TRUE (((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4)) [L269] a20 = 0 [L270] a17 = 1 [L271] a16 = 6 [L272] return 21; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND TRUE (((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6)) [L63] a17 = 0 [L64] return 26; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND TRUE ((((((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)) [L85] a7 = 0 [L86] a20 = 1 [L87] a8 = 14 [L88] a16 = 4 [L89] a21 = 1 [L90] a17 = 0 [L91] 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 TRUE ((((((!(a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1)) [L413] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 25.9s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 13.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 263 SDtfs, 4035 SDslu, 334 SDs, 0 SdLazy, 7124 SolverSat, 1136 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 68 SyntacticMatches, 4 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2375occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 1617 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.5s InterpolantComputationTime, 1345 NumberOfCodeBlocks, 1345 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1107 ConstructedInterpolants, 0 QuantifiedInterpolants, 479890 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 442/494 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...