/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_label57.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 19:05:46,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 19:05:46,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 19:05:46,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 19:05:46,118 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 19:05:46,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 19:05:46,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 19:05:46,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 19:05:46,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 19:05:46,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 19:05:46,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 19:05:46,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 19:05:46,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 19:05:46,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 19:05:46,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 19:05:46,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 19:05:46,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 19:05:46,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 19:05:46,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 19:05:46,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 19:05:46,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 19:05:46,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 19:05:46,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 19:05:46,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 19:05:46,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 19:05:46,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 19:05:46,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 19:05:46,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 19:05:46,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 19:05:46,172 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 19:05:46,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 19:05:46,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 19:05:46,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 19:05:46,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 19:05:46,175 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 19:05:46,175 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 19:05:46,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 19:05:46,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 19:05:46,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 19:05:46,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 19:05:46,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 19:05:46,179 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 19:05:46,220 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 19:05:46,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 19:05:46,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 19:05:46,222 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 19:05:46,222 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 19:05:46,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 19:05:46,222 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 19:05:46,223 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 19:05:46,223 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 19:05:46,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 19:05:46,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 19:05:46,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 19:05:46,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 19:05:46,225 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 19:05:46,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 19:05:46,225 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 19:05:46,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 19:05:46,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 19:05:46,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 19:05:46,226 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 19:05:46,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 19:05:46,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 19:05:46,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 19:05:46,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 19:05:46,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 19:05:46,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 19:05:46,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 19:05:46,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 19:05:46,228 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 19:05:46,228 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 19:05:46,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 19:05:46,524 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 19:05:46,528 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 19:05:46,532 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 19:05:46,532 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 19:05:46,533 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label57.c [2020-10-14 19:05:46,594 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f0a2a99fa/543e05185d5f4eafbc6d69079020b590/FLAGf08d693dd [2020-10-14 19:05:47,126 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 19:05:47,126 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label57.c [2020-10-14 19:05:47,137 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f0a2a99fa/543e05185d5f4eafbc6d69079020b590/FLAGf08d693dd [2020-10-14 19:05:47,398 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f0a2a99fa/543e05185d5f4eafbc6d69079020b590 [2020-10-14 19:05:47,408 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 19:05:47,410 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 19:05:47,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 19:05:47,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 19:05:47,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 19:05:47,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:05:47" (1/1) ... [2020-10-14 19:05:47,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@112bbb30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:47, skipping insertion in model container [2020-10-14 19:05:47,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:05:47" (1/1) ... [2020-10-14 19:05:47,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 19:05:47,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 19:05:47,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:05:47,974 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 19:05:48,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:05:48,211 INFO L208 MainTranslator]: Completed translation [2020-10-14 19:05:48,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:48 WrapperNode [2020-10-14 19:05:48,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 19:05:48,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 19:05:48,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 19:05:48,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 19:05:48,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:48" (1/1) ... [2020-10-14 19:05:48,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:48" (1/1) ... [2020-10-14 19:05:48,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:48" (1/1) ... [2020-10-14 19:05:48,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:48" (1/1) ... [2020-10-14 19:05:48,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:48" (1/1) ... [2020-10-14 19:05:48,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:48" (1/1) ... [2020-10-14 19:05:48,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:48" (1/1) ... [2020-10-14 19:05:48,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 19:05:48,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 19:05:48,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 19:05:48,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 19:05:48,316 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:48" (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 19:05:48,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 19:05:48,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 19:05:48,394 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 19:05:48,395 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 19:05:48,395 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 19:05:48,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 19:05:48,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 19:05:48,396 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 19:05:48,396 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 19:05:48,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 19:05:48,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 19:05:49,461 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 19:05:49,461 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 19:05:49,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:05:49 BoogieIcfgContainer [2020-10-14 19:05:49,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 19:05:49,468 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 19:05:49,468 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 19:05:49,471 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 19:05:49,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:05:47" (1/3) ... [2020-10-14 19:05:49,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d39cba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:05:49, skipping insertion in model container [2020-10-14 19:05:49,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:48" (2/3) ... [2020-10-14 19:05:49,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d39cba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:05:49, skipping insertion in model container [2020-10-14 19:05:49,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:05:49" (3/3) ... [2020-10-14 19:05:49,475 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label57.c [2020-10-14 19:05:49,485 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 19:05:49,492 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 19:05:49,506 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 19:05:49,530 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 19:05:49,531 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 19:05:49,531 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 19:05:49,531 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 19:05:49,531 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 19:05:49,532 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 19:05:49,532 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 19:05:49,532 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 19:05:49,553 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-14 19:05:49,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 19:05:49,561 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:49,562 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] [2020-10-14 19:05:49,563 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:49,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:49,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1332132926, now seen corresponding path program 1 times [2020-10-14 19:05:49,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:49,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [954222473] [2020-10-14 19:05:49,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:49,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:49,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:50,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:51,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:51,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 19:05:51,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:05:51,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1409 [2020-10-14 19:05:51,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:51,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:51,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:05:51,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:05:51,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 19:05:51,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 19:05:51,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:51,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:51,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:51,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:51,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:51,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 19:05:51,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:51,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:51,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:51,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:51,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:05:51,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:51,411 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 19:05:51,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [954222473] [2020-10-14 19:05:51,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 19:05:51,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 19:05:51,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220661992] [2020-10-14 19:05:51,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:05:51,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:51,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:05:51,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:05:51,437 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-10-14 19:05:52,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:52,761 INFO L93 Difference]: Finished difference Result 557 states and 956 transitions. [2020-10-14 19:05:52,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:05:52,763 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 84 [2020-10-14 19:05:52,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:52,778 INFO L225 Difference]: With dead ends: 557 [2020-10-14 19:05:52,778 INFO L226 Difference]: Without dead ends: 286 [2020-10-14 19:05:52,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:05:52,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-14 19:05:52,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2020-10-14 19:05:52,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-10-14 19:05:52,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 396 transitions. [2020-10-14 19:05:52,857 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 396 transitions. Word has length 84 [2020-10-14 19:05:52,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:52,858 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 396 transitions. [2020-10-14 19:05:52,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:05:52,859 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 396 transitions. [2020-10-14 19:05:52,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-14 19:05:52,864 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:52,864 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] [2020-10-14 19:05:52,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 19:05:52,865 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:52,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:52,865 INFO L82 PathProgramCache]: Analyzing trace with hash -2011227051, now seen corresponding path program 1 times [2020-10-14 19:05:52,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:52,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1244909624] [2020-10-14 19:05:52,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:52,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:53,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:53,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:53,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:53,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 19:05:53,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:05:53,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 695 [2020-10-14 19:05:53,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:53,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:53,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:53,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 19:05:53,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 19:05:53,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:53,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:53,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:53,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:53,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:53,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:53,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:53,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 19:05:53,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:53,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:53,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:53,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:53,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:53,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 19:05:53,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:05:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:53,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:53,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:53,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 19:05:53,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:53,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 19:05:53,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:53,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:53,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:53,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:53,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 19:05:53,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-14 19:05:53,826 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 19:05:53,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1244909624] [2020-10-14 19:05:53,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:05:53,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:05:53,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314991261] [2020-10-14 19:05:53,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:05:53,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:53,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:05:53,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:05:53,830 INFO L87 Difference]: Start difference. First operand 280 states and 396 transitions. Second operand 5 states. [2020-10-14 19:05:54,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:54,855 INFO L93 Difference]: Finished difference Result 834 states and 1203 transitions. [2020-10-14 19:05:54,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:05:54,856 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 94 [2020-10-14 19:05:54,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:54,861 INFO L225 Difference]: With dead ends: 834 [2020-10-14 19:05:54,861 INFO L226 Difference]: Without dead ends: 560 [2020-10-14 19:05:54,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:05:54,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-10-14 19:05:54,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 556. [2020-10-14 19:05:54,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-10-14 19:05:54,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 749 transitions. [2020-10-14 19:05:54,919 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 749 transitions. Word has length 94 [2020-10-14 19:05:54,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:54,920 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 749 transitions. [2020-10-14 19:05:54,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:05:54,920 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 749 transitions. [2020-10-14 19:05:54,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-14 19:05:54,925 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:54,925 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:05:54,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 19:05:54,926 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:54,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:54,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1370472054, now seen corresponding path program 1 times [2020-10-14 19:05:54,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:54,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2143734089] [2020-10-14 19:05:54,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:54,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:55,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:55,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:55,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:57,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:58,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:59,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:59,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 19:05:59,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 19:05:59,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4797 [2020-10-14 19:05:59,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:59,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:59,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:05:59,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 19:05:59,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 19:05:59,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:59,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:59,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:59,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:59,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:59,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:59,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:05:59,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:59,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:59,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:59,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:59,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:59,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:59,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:05:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:59,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:59,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:59,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 19:05:59,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:59,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 19:05:59,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:59,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:59,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:59,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:59,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 19:05:59,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:59,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 19:05:59,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:59,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:59,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:59,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:59,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 19:05:59,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:05:59,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 19:05:59,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:59,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:59,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:59,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:59,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 19:05:59,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:06:00,005 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-14 19:06:00,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2143734089] [2020-10-14 19:06:00,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:06:00,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:06:00,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496851575] [2020-10-14 19:06:00,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:06:00,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:06:00,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:06:00,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:06:00,008 INFO L87 Difference]: Start difference. First operand 556 states and 749 transitions. Second operand 5 states. [2020-10-14 19:06:01,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:06:01,020 INFO L93 Difference]: Finished difference Result 1384 states and 1908 transitions. [2020-10-14 19:06:01,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:06:01,022 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2020-10-14 19:06:01,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:06:01,030 INFO L225 Difference]: With dead ends: 1384 [2020-10-14 19:06:01,030 INFO L226 Difference]: Without dead ends: 834 [2020-10-14 19:06:01,032 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:06:01,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-10-14 19:06:01,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 695. [2020-10-14 19:06:01,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2020-10-14 19:06:01,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 922 transitions. [2020-10-14 19:06:01,061 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 922 transitions. Word has length 126 [2020-10-14 19:06:01,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:06:01,061 INFO L479 AbstractCegarLoop]: Abstraction has 695 states and 922 transitions. [2020-10-14 19:06:01,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:06:01,062 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 922 transitions. [2020-10-14 19:06:01,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-14 19:06:01,067 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:06:01,067 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:06:01,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 19:06:01,067 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:06:01,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:06:01,068 INFO L82 PathProgramCache]: Analyzing trace with hash 742971998, now seen corresponding path program 1 times [2020-10-14 19:06:01,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:06:01,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983226400] [2020-10-14 19:06:01,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:06:01,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:01,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:01,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:01,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:01,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:02,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:02,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 19:06:02,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 19:06:02,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1553 [2020-10-14 19:06:02,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:02,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:02,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:06:02,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-14 19:06:02,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 19:06:02,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:02,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:06:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:02,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:02,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:02,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:06:02,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:02,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:06:02,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:02,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:02,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:06:02,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:06:02,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:06:02,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:06:02,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:06:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:02,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:02,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:02,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 19:06:02,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:02,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:06:02,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:02,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:02,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:06:02,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:06:02,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:06:02,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:06:02,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 19:06:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:02,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:02,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:02,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 19:06:02,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:02,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 19:06:02,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:02,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:02,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:06:02,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:06:02,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 19:06:02,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:06:02,839 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 49 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-14 19:06:02,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [983226400] [2020-10-14 19:06:02,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:06:02,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:06:02,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445181623] [2020-10-14 19:06:02,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:06:02,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:06:02,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:06:02,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:06:02,842 INFO L87 Difference]: Start difference. First operand 695 states and 922 transitions. Second operand 5 states. [2020-10-14 19:06:04,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:06:04,007 INFO L93 Difference]: Finished difference Result 2073 states and 2827 transitions. [2020-10-14 19:06:04,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:06:04,009 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 138 [2020-10-14 19:06:04,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:06:04,017 INFO L225 Difference]: With dead ends: 2073 [2020-10-14 19:06:04,018 INFO L226 Difference]: Without dead ends: 1384 [2020-10-14 19:06:04,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:06:04,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2020-10-14 19:06:04,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1380. [2020-10-14 19:06:04,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1380 states. [2020-10-14 19:06:04,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 1795 transitions. [2020-10-14 19:06:04,071 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 1795 transitions. Word has length 138 [2020-10-14 19:06:04,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:06:04,072 INFO L479 AbstractCegarLoop]: Abstraction has 1380 states and 1795 transitions. [2020-10-14 19:06:04,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:06:04,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 1795 transitions. [2020-10-14 19:06:04,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-14 19:06:04,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:06:04,077 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:06:04,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 19:06:04,077 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:06:04,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:06:04,078 INFO L82 PathProgramCache]: Analyzing trace with hash 268993627, now seen corresponding path program 1 times [2020-10-14 19:06:04,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:06:04,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1264268155] [2020-10-14 19:06:04,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:06:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:04,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:04,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:04,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:07,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:07,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-14 19:06:07,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:06:07,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3257 [2020-10-14 19:06:07,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:07,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:07,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:06:07,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-14 19:06:07,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 19:06:07,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:07,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:06:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:07,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:07,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:07,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:06:07,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:07,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 19:06:07,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:07,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:07,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:06:07,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:06:07,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:06:07,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 19:06:07,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:06:07,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:07,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:07,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:07,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 19:06:07,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:07,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 19:06:07,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:07,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:07,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:06:07,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:06:07,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 19:06:07,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:06:07,663 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 69 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:06:07,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1264268155] [2020-10-14 19:06:07,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:06:07,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:06:07,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557605031] [2020-10-14 19:06:07,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:06:07,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:06:07,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:06:07,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:06:07,667 INFO L87 Difference]: Start difference. First operand 1380 states and 1795 transitions. Second operand 5 states. [2020-10-14 19:06:08,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:06:08,838 INFO L93 Difference]: Finished difference Result 3582 states and 4742 transitions. [2020-10-14 19:06:08,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:06:08,838 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-10-14 19:06:08,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:06:08,850 INFO L225 Difference]: With dead ends: 3582 [2020-10-14 19:06:08,850 INFO L226 Difference]: Without dead ends: 2208 [2020-10-14 19:06:08,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:06:08,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states. [2020-10-14 19:06:08,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 1388. [2020-10-14 19:06:08,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1388 states. [2020-10-14 19:06:08,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 1753 transitions. [2020-10-14 19:06:08,906 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 1753 transitions. Word has length 157 [2020-10-14 19:06:08,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:06:08,906 INFO L479 AbstractCegarLoop]: Abstraction has 1388 states and 1753 transitions. [2020-10-14 19:06:08,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:06:08,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 1753 transitions. [2020-10-14 19:06:08,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-14 19:06:08,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:06:08,912 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:06:08,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 19:06:08,912 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:06:08,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:06:08,913 INFO L82 PathProgramCache]: Analyzing trace with hash -2045935250, now seen corresponding path program 1 times [2020-10-14 19:06:08,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:06:08,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1436830747] [2020-10-14 19:06:08,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:06:08,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:08,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:09,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:09,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-14 19:06:09,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:09,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 362 [2020-10-14 19:06:09,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:09,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:09,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:06:09,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:06:09,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 19:06:09,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:06:09,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:06:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:09,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:09,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:09,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:06:09,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:09,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 19:06:09,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:09,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:09,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:06:09,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:06:09,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:06:09,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:06:09,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:06:09,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:09,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:09,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:09,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 19:06:09,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:09,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 19:06:09,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:09,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:09,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:06:09,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:06:09,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 19:06:09,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:06:09,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 19:06:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:09,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:09,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:09,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 19:06:09,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:09,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 19:06:09,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:09,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:09,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:06:09,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 19:06:09,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:06:09,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:06:09,681 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 79 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 19:06:09,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1436830747] [2020-10-14 19:06:09,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:06:09,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:06:09,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747853278] [2020-10-14 19:06:09,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:06:09,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:06:09,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:06:09,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:06:09,684 INFO L87 Difference]: Start difference. First operand 1388 states and 1753 transitions. Second operand 7 states. [2020-10-14 19:06:10,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:06:10,988 INFO L93 Difference]: Finished difference Result 3348 states and 4294 transitions. [2020-10-14 19:06:10,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 19:06:10,989 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 169 [2020-10-14 19:06:10,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:06:10,997 INFO L225 Difference]: With dead ends: 3348 [2020-10-14 19:06:10,998 INFO L226 Difference]: Without dead ends: 1829 [2020-10-14 19:06:11,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 19:06:11,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2020-10-14 19:06:11,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1815. [2020-10-14 19:06:11,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1815 states. [2020-10-14 19:06:11,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2242 transitions. [2020-10-14 19:06:11,068 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2242 transitions. Word has length 169 [2020-10-14 19:06:11,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:06:11,068 INFO L479 AbstractCegarLoop]: Abstraction has 1815 states and 2242 transitions. [2020-10-14 19:06:11,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:06:11,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2242 transitions. [2020-10-14 19:06:11,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-10-14 19:06:11,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:06:11,077 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 19:06:11,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 19:06:11,078 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:06:11,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:06:11,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1121338037, now seen corresponding path program 1 times [2020-10-14 19:06:11,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:06:11,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [101334343] [2020-10-14 19:06:11,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:06:11,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:11,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:11,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:11,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:11,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-14 19:06:11,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:06:11,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 839 [2020-10-14 19:06:11,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:11,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:11,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 19:06:11,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:06:11,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 19:06:11,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:12,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:06:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:12,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:12,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:12,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:06:12,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:12,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 19:06:12,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:12,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:12,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:06:12,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:06:12,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:06:12,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:06:12,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:06:12,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:12,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:12,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:12,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:12,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 19:06:12,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:06:12,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 19:06:12,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:12,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:12,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:06:12,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:06:12,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 19:06:12,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:12,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 19:06:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:12,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:12,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:12,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 19:06:12,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:12,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 19:06:12,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:12,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:12,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:06:12,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:06:12,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 19:06:12,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:06:12,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 19:06:12,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:12,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:12,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:12,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 19:06:12,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:12,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 19:06:12,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:12,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:12,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:06:12,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 19:06:12,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:06:12,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:12,266 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 92 proven. 18 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 19:06:12,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [101334343] [2020-10-14 19:06:12,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:06:12,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:06:12,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031140829] [2020-10-14 19:06:12,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:06:12,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:06:12,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:06:12,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:06:12,269 INFO L87 Difference]: Start difference. First operand 1815 states and 2242 transitions. Second operand 7 states. [2020-10-14 19:06:13,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:06:13,460 INFO L93 Difference]: Finished difference Result 4077 states and 5077 transitions. [2020-10-14 19:06:13,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 19:06:13,462 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 180 [2020-10-14 19:06:13,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:06:13,472 INFO L225 Difference]: With dead ends: 4077 [2020-10-14 19:06:13,473 INFO L226 Difference]: Without dead ends: 1841 [2020-10-14 19:06:13,479 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 19:06:13,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1841 states. [2020-10-14 19:06:13,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1841 to 1680. [2020-10-14 19:06:13,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1680 states. [2020-10-14 19:06:13,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 1925 transitions. [2020-10-14 19:06:13,533 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 1925 transitions. Word has length 180 [2020-10-14 19:06:13,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:06:13,533 INFO L479 AbstractCegarLoop]: Abstraction has 1680 states and 1925 transitions. [2020-10-14 19:06:13,533 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:06:13,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 1925 transitions. [2020-10-14 19:06:13,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-10-14 19:06:13,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:06:13,539 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:06:13,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 19:06:13,540 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:06:13,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:06:13,540 INFO L82 PathProgramCache]: Analyzing trace with hash 875820828, now seen corresponding path program 1 times [2020-10-14 19:06:13,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:06:13,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2119049515] [2020-10-14 19:06:13,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:06:13,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:13,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:13,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:13,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:15,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:15,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-14 19:06:15,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:06:15,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2414 [2020-10-14 19:06:15,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:15,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:15,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 19:06:15,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:06:15,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 19:06:15,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:16,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:06:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:16,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:16,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:16,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:06:16,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:16,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 19:06:16,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:16,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:16,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:06:16,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:06:16,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:06:16,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:16,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:06:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:16,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:16,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:16,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:16,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 19:06:16,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:06:16,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 19:06:16,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:16,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:16,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:06:16,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:06:16,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 19:06:16,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:16,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 19:06:16,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:16,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:16,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:16,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 19:06:16,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:16,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 19:06:16,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:16,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:16,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:06:16,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:06:16,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 19:06:16,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:16,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 19:06:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:16,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:16,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:16,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 19:06:16,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:16,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 19:06:16,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:16,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:16,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:06:16,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 19:06:16,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:06:16,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:16,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 19:06:16,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:16,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:16,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:16,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 19:06:16,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:16,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 19:06:16,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:16,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:16,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:06:16,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 19:06:16,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:06:16,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:16,254 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 117 proven. 39 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-14 19:06:16,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2119049515] [2020-10-14 19:06:16,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:06:16,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 19:06:16,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104111986] [2020-10-14 19:06:16,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 19:06:16,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:06:16,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 19:06:16,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 19:06:16,257 INFO L87 Difference]: Start difference. First operand 1680 states and 1925 transitions. Second operand 8 states. [2020-10-14 19:06:17,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:06:17,265 INFO L93 Difference]: Finished difference Result 4353 states and 5096 transitions. [2020-10-14 19:06:17,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 19:06:17,266 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 203 [2020-10-14 19:06:17,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:06:17,278 INFO L225 Difference]: With dead ends: 4353 [2020-10-14 19:06:17,278 INFO L226 Difference]: Without dead ends: 2679 [2020-10-14 19:06:17,284 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-14 19:06:17,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2679 states. [2020-10-14 19:06:17,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2679 to 2653. [2020-10-14 19:06:17,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2653 states. [2020-10-14 19:06:17,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2653 states to 2653 states and 3046 transitions. [2020-10-14 19:06:17,365 INFO L78 Accepts]: Start accepts. Automaton has 2653 states and 3046 transitions. Word has length 203 [2020-10-14 19:06:17,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:06:17,365 INFO L479 AbstractCegarLoop]: Abstraction has 2653 states and 3046 transitions. [2020-10-14 19:06:17,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 19:06:17,365 INFO L276 IsEmpty]: Start isEmpty. Operand 2653 states and 3046 transitions. [2020-10-14 19:06:17,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-14 19:06:17,373 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:06:17,374 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 19:06:17,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 19:06:17,374 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:06:17,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:06:17,375 INFO L82 PathProgramCache]: Analyzing trace with hash 616747553, now seen corresponding path program 1 times [2020-10-14 19:06:17,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:06:17,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1035013538] [2020-10-14 19:06:17,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:06:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:17,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:17,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:18,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:18,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 19:06:18,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:06:18,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 877 [2020-10-14 19:06:18,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:18,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:18,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:06:18,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:06:18,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 19:06:18,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:18,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:06:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:18,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:18,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:18,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:06:18,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:18,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 19:06:18,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:18,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:18,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:06:18,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:06:18,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:06:18,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:18,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:06:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:18,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:18,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:18,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 19:06:18,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:18,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 19:06:18,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:18,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:18,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:06:18,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:06:18,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 19:06:18,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:18,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 19:06:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:18,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:18,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:18,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 19:06:18,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:18,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 19:06:18,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:18,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:18,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:06:18,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 19:06:18,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:06:18,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:18,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 19:06:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:18,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:18,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:18,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 19:06:18,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:18,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 19:06:18,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:18,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:18,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:06:18,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 19:06:18,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:06:18,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:18,524 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 109 proven. 38 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-14 19:06:18,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1035013538] [2020-10-14 19:06:18,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:06:18,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:06:18,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181066421] [2020-10-14 19:06:18,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:06:18,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:06:18,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:06:18,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:06:18,527 INFO L87 Difference]: Start difference. First operand 2653 states and 3046 transitions. Second operand 7 states. [2020-10-14 19:06:19,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:06:19,622 INFO L93 Difference]: Finished difference Result 5175 states and 5959 transitions. [2020-10-14 19:06:19,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 19:06:19,623 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 202 [2020-10-14 19:06:19,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:06:19,633 INFO L225 Difference]: With dead ends: 5175 [2020-10-14 19:06:19,633 INFO L226 Difference]: Without dead ends: 2663 [2020-10-14 19:06:19,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 19:06:19,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2663 states. [2020-10-14 19:06:19,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2663 to 2655. [2020-10-14 19:06:19,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2655 states. [2020-10-14 19:06:19,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2655 states to 2655 states and 3023 transitions. [2020-10-14 19:06:19,699 INFO L78 Accepts]: Start accepts. Automaton has 2655 states and 3023 transitions. Word has length 202 [2020-10-14 19:06:19,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:06:19,699 INFO L479 AbstractCegarLoop]: Abstraction has 2655 states and 3023 transitions. [2020-10-14 19:06:19,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:06:19,699 INFO L276 IsEmpty]: Start isEmpty. Operand 2655 states and 3023 transitions. [2020-10-14 19:06:19,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-14 19:06:19,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:06:19,709 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 19:06:19,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 19:06:19,710 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:06:19,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:06:19,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1246932670, now seen corresponding path program 1 times [2020-10-14 19:06:19,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:06:19,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [876342736] [2020-10-14 19:06:19,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:06:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:19,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:20,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:20,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-10-14 19:06:20,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:20,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-10-14 19:06:20,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:20,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:20,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:06:20,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 19:06:20,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 19:06:20,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:20,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:06:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:20,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:20,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:20,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:06:20,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:20,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 19:06:20,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:20,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:20,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:06:20,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:06:20,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:06:20,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:20,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:06:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:20,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:20,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:20,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 19:06:20,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:20,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 19:06:20,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:20,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:20,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:06:20,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:06:20,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:06:20,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:20,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 19:06:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:20,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:20,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:20,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 19:06:20,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:20,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 19:06:20,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:20,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:20,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:06:20,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:06:20,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 19:06:20,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:20,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 19:06:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:20,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:20,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:20,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 19:06:20,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:20,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 19:06:20,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:20,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:20,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:06:20,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:06:20,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 19:06:20,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:20,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 19:06:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:20,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:20,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:20,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 19:06:20,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:20,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 19:06:20,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:20,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:20,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:06:20,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 19:06:20,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:06:20,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:20,301 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 184 proven. 14 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2020-10-14 19:06:20,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [876342736] [2020-10-14 19:06:20,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:06:20,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:06:20,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030896189] [2020-10-14 19:06:20,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:06:20,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:06:20,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:06:20,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:06:20,304 INFO L87 Difference]: Start difference. First operand 2655 states and 3023 transitions. Second operand 7 states. [2020-10-14 19:06:21,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:06:21,554 INFO L93 Difference]: Finished difference Result 5620 states and 6470 transitions. [2020-10-14 19:06:21,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 19:06:21,555 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 243 [2020-10-14 19:06:21,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:06:21,568 INFO L225 Difference]: With dead ends: 5620 [2020-10-14 19:06:21,568 INFO L226 Difference]: Without dead ends: 2965 [2020-10-14 19:06:21,575 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-14 19:06:21,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2965 states. [2020-10-14 19:06:21,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2965 to 2937. [2020-10-14 19:06:21,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2937 states. [2020-10-14 19:06:21,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2937 states to 2937 states and 3290 transitions. [2020-10-14 19:06:21,695 INFO L78 Accepts]: Start accepts. Automaton has 2937 states and 3290 transitions. Word has length 243 [2020-10-14 19:06:21,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:06:21,696 INFO L479 AbstractCegarLoop]: Abstraction has 2937 states and 3290 transitions. [2020-10-14 19:06:21,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:06:21,696 INFO L276 IsEmpty]: Start isEmpty. Operand 2937 states and 3290 transitions. [2020-10-14 19:06:21,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-10-14 19:06:21,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:06:21,706 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:06:21,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 19:06:21,707 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:06:21,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:06:21,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1702979019, now seen corresponding path program 1 times [2020-10-14 19:06:21,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:06:21,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [93252459] [2020-10-14 19:06:21,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:06:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:21,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:22,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:22,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-10-14 19:06:22,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:22,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-10-14 19:06:22,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:22,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:22,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:06:22,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-14 19:06:22,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 19:06:22,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:22,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:06:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:22,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:22,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:22,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:06:22,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:22,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:06:22,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:22,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:22,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:06:22,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:06:22,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:06:22,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:22,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:06:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:22,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:22,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:22,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 19:06:22,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:22,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 19:06:22,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:22,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:22,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:06:22,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:06:22,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:06:22,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:22,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 19:06:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:22,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:22,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:22,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 19:06:22,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:22,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 19:06:22,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:22,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:22,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:06:22,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:06:22,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:06:22,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:22,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 19:06:22,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:22,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:22,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:22,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 19:06:22,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:22,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 19:06:22,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:22,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:22,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:06:22,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:06:22,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 19:06:22,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:22,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 19:06:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:22,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:22,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:22,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 19:06:22,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:22,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 19:06:22,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:22,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:22,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:06:22,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:06:22,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 19:06:22,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:22,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-14 19:06:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:22,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:22,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:22,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 19:06:22,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:22,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 19:06:22,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:22,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:22,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:06:22,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 19:06:22,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:06:22,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:22,337 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 205 proven. 14 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2020-10-14 19:06:22,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [93252459] [2020-10-14 19:06:22,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:06:22,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:06:22,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081962812] [2020-10-14 19:06:22,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:06:22,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:06:22,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:06:22,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:06:22,339 INFO L87 Difference]: Start difference. First operand 2937 states and 3290 transitions. Second operand 7 states. [2020-10-14 19:06:23,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:06:23,306 INFO L93 Difference]: Finished difference Result 5745 states and 6450 transitions. [2020-10-14 19:06:23,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 19:06:23,307 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 253 [2020-10-14 19:06:23,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:06:23,318 INFO L225 Difference]: With dead ends: 5745 [2020-10-14 19:06:23,319 INFO L226 Difference]: Without dead ends: 2949 [2020-10-14 19:06:23,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 19:06:23,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2949 states. [2020-10-14 19:06:23,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2949 to 2939. [2020-10-14 19:06:23,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2939 states. [2020-10-14 19:06:23,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2939 states to 2939 states and 3279 transitions. [2020-10-14 19:06:23,385 INFO L78 Accepts]: Start accepts. Automaton has 2939 states and 3279 transitions. Word has length 253 [2020-10-14 19:06:23,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:06:23,386 INFO L479 AbstractCegarLoop]: Abstraction has 2939 states and 3279 transitions. [2020-10-14 19:06:23,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:06:23,386 INFO L276 IsEmpty]: Start isEmpty. Operand 2939 states and 3279 transitions. [2020-10-14 19:06:23,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-10-14 19:06:23,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:06:23,395 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-14 19:06:23,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 19:06:23,396 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:06:23,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:06:23,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1382522619, now seen corresponding path program 1 times [2020-10-14 19:06:23,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:06:23,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [559863921] [2020-10-14 19:06:23,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:06:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:23,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:23,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:23,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 292 [2020-10-14 19:06:23,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:23,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-10-14 19:06:23,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:23,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:23,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:06:23,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-14 19:06:23,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 19:06:23,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:23,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:06:23,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:23,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:23,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:23,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:06:23,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:23,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:06:23,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:23,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:23,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:06:23,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:06:23,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:06:23,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:06:23,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:06:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:23,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:23,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:23,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 19:06:23,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:23,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 19:06:23,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:23,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:23,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:06:23,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:06:23,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 19:06:23,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:23,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 19:06:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:23,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:24,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:24,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-14 19:06:24,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:24,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 19:06:24,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:24,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:24,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:06:24,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:06:24,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-14 19:06:24,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:24,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-14 19:06:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:24,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:24,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:24,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 19:06:24,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:24,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 19:06:24,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:24,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:24,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:06:24,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 19:06:24,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:06:24,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:06:24,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 19:06:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:24,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:24,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:24,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 19:06:24,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:24,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 19:06:24,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:24,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:24,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:06:24,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 19:06:24,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:06:24,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:24,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-14 19:06:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:24,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:24,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:24,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 19:06:24,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:24,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 19:06:24,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:24,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:24,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:06:24,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 19:06:24,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:06:24,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:24,196 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 225 proven. 72 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2020-10-14 19:06:24,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [559863921] [2020-10-14 19:06:24,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:06:24,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:06:24,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049508042] [2020-10-14 19:06:24,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:06:24,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:06:24,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:06:24,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:06:24,198 INFO L87 Difference]: Start difference. First operand 2939 states and 3279 transitions. Second operand 7 states. [2020-10-14 19:06:25,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:06:25,354 INFO L93 Difference]: Finished difference Result 5757 states and 6424 transitions. [2020-10-14 19:06:25,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 19:06:25,355 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 274 [2020-10-14 19:06:25,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:06:25,364 INFO L225 Difference]: With dead ends: 5757 [2020-10-14 19:06:25,364 INFO L226 Difference]: Without dead ends: 2959 [2020-10-14 19:06:25,371 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-14 19:06:25,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2020-10-14 19:06:25,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 2947. [2020-10-14 19:06:25,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2947 states. [2020-10-14 19:06:25,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2947 states to 2947 states and 3241 transitions. [2020-10-14 19:06:25,425 INFO L78 Accepts]: Start accepts. Automaton has 2947 states and 3241 transitions. Word has length 274 [2020-10-14 19:06:25,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:06:25,426 INFO L479 AbstractCegarLoop]: Abstraction has 2947 states and 3241 transitions. [2020-10-14 19:06:25,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:06:25,426 INFO L276 IsEmpty]: Start isEmpty. Operand 2947 states and 3241 transitions. [2020-10-14 19:06:25,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2020-10-14 19:06:25,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:06:25,435 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-14 19:06:25,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 19:06:25,436 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:06:25,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:06:25,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1939313035, now seen corresponding path program 1 times [2020-10-14 19:06:25,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:06:25,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [747922122] [2020-10-14 19:06:25,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:06:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:25,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:25,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:25,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 303 [2020-10-14 19:06:25,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:25,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-10-14 19:06:25,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:25,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:25,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:06:25,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-14 19:06:25,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 19:06:25,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:25,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:06:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:25,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:25,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:25,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:06:25,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:25,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 19:06:25,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:25,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:25,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:06:25,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:06:25,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:06:25,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:25,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:06:25,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:25,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:25,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:25,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 19:06:25,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:25,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 19:06:25,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:25,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:25,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:06:25,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:06:25,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:06:25,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 19:06:25,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 19:06:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:25,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:25,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:25,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 19:06:25,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:25,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 19:06:25,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:25,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:06:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:06:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:06:25,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:25,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 19:06:26,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:26,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:26,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:26,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 19:06:26,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:26,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 19:06:26,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:26,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:26,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:06:26,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:06:26,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 19:06:26,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:26,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 19:06:26,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:26,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:26,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:26,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 19:06:26,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:26,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 19:06:26,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:26,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:26,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:06:26,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:06:26,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 19:06:26,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:26,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 19:06:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:26,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:26,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:06:26,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 19:06:26,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:06:26,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 19:06:26,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:06:26,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:06:26,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:06:26,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 19:06:26,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:06:26,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:06:26,182 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 237 proven. 14 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2020-10-14 19:06:26,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [747922122] [2020-10-14 19:06:26,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:06:26,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 19:06:26,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045877442] [2020-10-14 19:06:26,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 19:06:26,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:06:26,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 19:06:26,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 19:06:26,184 INFO L87 Difference]: Start difference. First operand 2947 states and 3241 transitions. Second operand 8 states. [2020-10-14 19:06:27,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:06:27,939 INFO L93 Difference]: Finished difference Result 5904 states and 6517 transitions. [2020-10-14 19:06:27,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 19:06:27,940 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 285 [2020-10-14 19:06:27,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:06:27,948 INFO L225 Difference]: With dead ends: 5904 [2020-10-14 19:06:27,949 INFO L226 Difference]: Without dead ends: 2961 [2020-10-14 19:06:27,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-14 19:06:27,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2020-10-14 19:06:28,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 2945. [2020-10-14 19:06:28,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2945 states. [2020-10-14 19:06:28,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2945 states to 2945 states and 3193 transitions. [2020-10-14 19:06:28,007 INFO L78 Accepts]: Start accepts. Automaton has 2945 states and 3193 transitions. Word has length 285 [2020-10-14 19:06:28,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:06:28,007 INFO L479 AbstractCegarLoop]: Abstraction has 2945 states and 3193 transitions. [2020-10-14 19:06:28,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 19:06:28,007 INFO L276 IsEmpty]: Start isEmpty. Operand 2945 states and 3193 transitions. [2020-10-14 19:06:28,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-10-14 19:06:28,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:06:28,017 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:06:28,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 19:06:28,017 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:06:28,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:06:28,018 INFO L82 PathProgramCache]: Analyzing trace with hash 666628209, now seen corresponding path program 1 times [2020-10-14 19:06:28,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:06:28,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [927955414] [2020-10-14 19:06:28,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:06:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 19:06:28,078 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 19:06:28,078 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 19:06:28,086 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 19:06:28,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:06:28 BoogieIcfgContainer [2020-10-14 19:06:28,156 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 19:06:28,159 INFO L168 Benchmark]: Toolchain (without parser) took 40748.10 ms. Allocated memory was 145.8 MB in the beginning and 890.2 MB in the end (delta: 744.5 MB). Free memory was 100.6 MB in the beginning and 254.7 MB in the end (delta: -154.1 MB). Peak memory consumption was 590.4 MB. Max. memory is 7.1 GB. [2020-10-14 19:06:28,160 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-14 19:06:28,161 INFO L168 Benchmark]: CACSL2BoogieTranslator took 801.62 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 100.6 MB in the beginning and 169.8 MB in the end (delta: -69.2 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2020-10-14 19:06:28,161 INFO L168 Benchmark]: Boogie Preprocessor took 101.65 ms. Allocated memory is still 203.9 MB. Free memory was 169.8 MB in the beginning and 164.7 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-10-14 19:06:28,168 INFO L168 Benchmark]: RCFGBuilder took 1152.67 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 164.7 MB in the beginning and 179.3 MB in the end (delta: -14.6 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB. [2020-10-14 19:06:28,169 INFO L168 Benchmark]: TraceAbstraction took 38687.57 ms. Allocated memory was 237.0 MB in the beginning and 890.2 MB in the end (delta: 653.3 MB). Free memory was 179.3 MB in the beginning and 254.7 MB in the end (delta: -75.4 MB). Peak memory consumption was 577.9 MB. Max. memory is 7.1 GB. [2020-10-14 19:06:28,177 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 801.62 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 100.6 MB in the beginning and 169.8 MB in the end (delta: -69.2 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.65 ms. Allocated memory is still 203.9 MB. Free memory was 169.8 MB in the beginning and 164.7 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1152.67 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 164.7 MB in the beginning and 179.3 MB in the end (delta: -14.6 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 38687.57 ms. Allocated memory was 237.0 MB in the beginning and 890.2 MB in the end (delta: 653.3 MB). Free memory was 179.3 MB in the beginning and 254.7 MB in the end (delta: -75.4 MB). Peak memory consumption was 577.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 410]: 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 TRUE ((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))))))) [L73] a7 = 1 [L74] a17 = 1 [L75] a21 = 0 [L76] a20 = 1 [L77] a8 = 13 [L78] a16 = 5 [L79] return 26; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L273] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L278] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L286] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L292] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L299] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L306] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L312] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L316] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L318] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L324] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L329] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L333] COND FALSE !(((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15)))) [L337] COND FALSE !((!(a21==1)&&((a20==1)&&(((a12==8)&&((a8==13)&&((((a16==5)&&!(a17==1))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==2))))&&(a7==1))))) [L345] COND FALSE !(((a7==1)&&((a12==8)&&((((a20==1)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||((a16==4)&&!(a17==1))))&&(input==4)))&&(a8==13))&&!(a21==1))))) [L353] COND FALSE !(((a21==1)&&((((!(a7==1)&&((a8==15)&&(!(a20==1)&&(input==4))))&&(a17==1))&&(a16==5))&&(a12==8)))) [L355] COND FALSE !((((!(a7==1)&&((!(a20==1)&&((a21==1)&&((input==3)&&(a17==1))))&&(a8==15)))&&(a12==8))&&(a16==5))) [L361] COND FALSE !(((((!(a17==1)&&(!(a20==1)&&((a8==15)&&((input==1)&&(a16==5)))))&&(a12==8))&&(a21==1))&&!(a7==1))) [L363] COND FALSE !(((((a21==1)&&((a8==15)&&(((a16==5)&&((a12==8)&&(input==1)))&&(a17==1))))&&!(a7==1))&&!(a20==1))) [L365] COND TRUE ((!(a21==1)&&((a20==1)&&((((a8==13)&&((a7==1)&&(input==5)))&&(a17==1))&&(a12==8))))&&(a16==5)) [L366] a21 = 1 [L367] a7 = 0 [L368] a17 = 0 [L369] a8 = 14 [L370] a20 = 0 [L371] 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 TRUE ((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1)) [L410] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 38.5s, OverallIterations: 14, TraceHistogramMax: 6, AutomataDifference: 15.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 383 SDtfs, 5253 SDslu, 472 SDs, 0 SdLazy, 10153 SolverSat, 1188 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 244 GetRequests, 144 SyntacticMatches, 2 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2947occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 1248 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 20.7s InterpolantComputationTime, 2704 NumberOfCodeBlocks, 2704 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2395 ConstructedInterpolants, 0 QuantifiedInterpolants, 1125262 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 1993/2218 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...