/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=NARROWEST --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_label44.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:05:06,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:05:06,098 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:05:06,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:05:06,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:05:06,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:05:06,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:05:06,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:05:06,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:05:06,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:05:06,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:05:06,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:05:06,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:05:06,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:05:06,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:05:06,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:05:06,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:05:06,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:05:06,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:05:06,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:05:06,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:05:06,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:05:06,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:05:06,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:05:06,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:05:06,198 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:05:06,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:05:06,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:05:06,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:05:06,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:05:06,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:05:06,202 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:05:06,202 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:05:06,203 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:05:06,205 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:05:06,205 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:05:06,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:05:06,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:05:06,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:05:06,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:05:06,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:05:06,209 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 [2020-10-13 06:05:06,248 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:05:06,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:05:06,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:05:06,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:05:06,250 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:05:06,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:05:06,251 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:05:06,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:05:06,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:05:06,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:05:06,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:05:06,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:05:06,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:05:06,253 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:05:06,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:05:06,254 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:05:06,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:05:06,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:05:06,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:05:06,254 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:05:06,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:05:06,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:05:06,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:05:06,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:05:06,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:05:06,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:05:06,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:05:06,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:05:06,256 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:05:06,256 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 06:05:06,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:05:06,610 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:05:06,613 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:05:06,615 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:05:06,615 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:05:06,616 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label44.c [2020-10-13 06:05:06,683 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8049058fe/aa8c4ec4bd7345dd84888d431bf7d54e/FLAG78b514198 [2020-10-13 06:05:07,256 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:05:07,259 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label44.c [2020-10-13 06:05:07,271 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8049058fe/aa8c4ec4bd7345dd84888d431bf7d54e/FLAG78b514198 [2020-10-13 06:05:07,445 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8049058fe/aa8c4ec4bd7345dd84888d431bf7d54e [2020-10-13 06:05:07,456 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:05:07,457 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:05:07,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:05:07,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:05:07,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:05:07,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:05:07" (1/1) ... [2020-10-13 06:05:07,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10b0f1f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:05:07, skipping insertion in model container [2020-10-13 06:05:07,469 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:05:07" (1/1) ... [2020-10-13 06:05:07,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:05:07,544 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:05:07,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:05:07,927 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:05:08,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:05:08,188 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:05:08,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:05:08 WrapperNode [2020-10-13 06:05:08,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:05:08,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:05:08,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:05:08,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:05:08,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:05:08" (1/1) ... [2020-10-13 06:05:08,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:05:08" (1/1) ... [2020-10-13 06:05:08,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:05:08" (1/1) ... [2020-10-13 06:05:08,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:05:08" (1/1) ... [2020-10-13 06:05:08,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:05:08" (1/1) ... [2020-10-13 06:05:08,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:05:08" (1/1) ... [2020-10-13 06:05:08,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:05:08" (1/1) ... [2020-10-13 06:05:08,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:05:08,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:05:08,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:05:08,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:05:08,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:05:08" (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 [2020-10-13 06:05:08,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:05:08,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:05:08,393 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:05:08,393 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:05:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:05:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:05:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:05:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:05:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:05:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:05:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:05:09,549 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:05:09,549 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:05:09,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:05:09 BoogieIcfgContainer [2020-10-13 06:05:09,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:05:09,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:05:09,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:05:09,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:05:09,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:05:07" (1/3) ... [2020-10-13 06:05:09,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@368be827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:05:09, skipping insertion in model container [2020-10-13 06:05:09,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:05:08" (2/3) ... [2020-10-13 06:05:09,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@368be827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:05:09, skipping insertion in model container [2020-10-13 06:05:09,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:05:09" (3/3) ... [2020-10-13 06:05:09,565 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label44.c [2020-10-13 06:05:09,576 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:05:09,585 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:05:09,599 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:05:09,627 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:05:09,627 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:05:09,628 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:05:09,628 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:05:09,628 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:05:09,629 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:05:09,629 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:05:09,629 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:05:09,653 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-13 06:05:09,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-13 06:05:09,664 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:09,665 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:05:09,666 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:09,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:09,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1855725642, now seen corresponding path program 1 times [2020-10-13 06:05:09,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:09,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [523097250] [2020-10-13 06:05:09,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:09,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:10,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:10,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:11,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:11,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-13 06:05:11,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:05:11,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1770 [2020-10-13 06:05:11,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:11,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 06:05:11,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:05:11,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:05:11,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 06:05:12,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:12,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:12,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:12,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:12,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:12,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:12,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:05:12,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:12,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:12,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:12,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:05:12,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:12,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:05:12,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [523097250] [2020-10-13 06:05:12,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:05:12,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 06:05:12,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476366460] [2020-10-13 06:05:12,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:05:12,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:13,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:05:13,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:05:13,018 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 13 states. [2020-10-13 06:05:13,404 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2020-10-13 06:05:13,611 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2020-10-13 06:05:13,894 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 98 [2020-10-13 06:05:14,187 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 95 [2020-10-13 06:05:14,491 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 94 [2020-10-13 06:05:14,904 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2020-10-13 06:05:15,460 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2020-10-13 06:05:15,768 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-10-13 06:05:16,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:16,802 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-13 06:05:16,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:05:16,803 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 90 [2020-10-13 06:05:16,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:16,817 INFO L225 Difference]: With dead ends: 474 [2020-10-13 06:05:16,817 INFO L226 Difference]: Without dead ends: 205 [2020-10-13 06:05:16,824 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:05:16,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-13 06:05:16,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-13 06:05:16,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 06:05:16,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-13 06:05:16,885 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 90 [2020-10-13 06:05:16,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:16,886 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-13 06:05:16,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:05:16,886 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-13 06:05:16,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-13 06:05:16,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:16,892 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:05:16,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:05:16,893 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:16,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:16,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1107181265, now seen corresponding path program 1 times [2020-10-13 06:05:16,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:16,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1536764552] [2020-10-13 06:05:16,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:16,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:16,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:17,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:17,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:18,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:18,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-13 06:05:18,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:05:18,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1175 [2020-10-13 06:05:18,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:18,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:05:18,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 06:05:18,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:05:18,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:18,638 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 45 [2020-10-13 06:05:19,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:19,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:19,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:19,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:19,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:19,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:05:19,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:19,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:19,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:19,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:19,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:19,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:19,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:19,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:19,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:05:19,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:19,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:05:19,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:19,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:19,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:19,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:05:19,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:19,346 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:05:19,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1536764552] [2020-10-13 06:05:19,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:19,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:05:19,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86397040] [2020-10-13 06:05:19,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:05:19,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:19,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:05:19,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:05:19,352 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-13 06:05:19,740 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 06:05:20,274 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 100 [2020-10-13 06:05:21,019 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2020-10-13 06:05:21,373 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 94 [2020-10-13 06:05:21,815 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2020-10-13 06:05:22,028 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 86 [2020-10-13 06:05:22,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:22,639 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-13 06:05:22,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:05:22,641 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 98 [2020-10-13 06:05:22,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:22,645 INFO L225 Difference]: With dead ends: 433 [2020-10-13 06:05:22,645 INFO L226 Difference]: Without dead ends: 294 [2020-10-13 06:05:22,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-13 06:05:22,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-13 06:05:22,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-13 06:05:22,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 06:05:22,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-13 06:05:22,674 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 98 [2020-10-13 06:05:22,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:22,675 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-13 06:05:22,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:05:22,675 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-13 06:05:22,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-13 06:05:22,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:22,678 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:05:22,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:05:22,679 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:22,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:22,679 INFO L82 PathProgramCache]: Analyzing trace with hash 2111365455, now seen corresponding path program 1 times [2020-10-13 06:05:22,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:22,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1482251250] [2020-10-13 06:05:22,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:22,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:22,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:22,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:23,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:23,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 06:05:23,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:05:23,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 553 [2020-10-13 06:05:23,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:23,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:23,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:05:23,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:05:23,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:23,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:23,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:23,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:23,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:23,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:23,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:23,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:23,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:23,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:23,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:23,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:23,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:23,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:23,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:23,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:05:23,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:23,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:05:23,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:23,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:23,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:23,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:05:23,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:23,440 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:05:23,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1482251250] [2020-10-13 06:05:23,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:23,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:05:23,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63680061] [2020-10-13 06:05:23,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:05:23,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:23,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:05:23,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:05:23,443 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 5 states. [2020-10-13 06:05:24,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:24,419 INFO L93 Difference]: Finished difference Result 625 states and 849 transitions. [2020-10-13 06:05:24,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:05:24,420 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2020-10-13 06:05:24,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:24,424 INFO L225 Difference]: With dead ends: 625 [2020-10-13 06:05:24,424 INFO L226 Difference]: Without dead ends: 415 [2020-10-13 06:05:24,425 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 [2020-10-13 06:05:24,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-10-13 06:05:24,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 413. [2020-10-13 06:05:24,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-10-13 06:05:24,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 538 transitions. [2020-10-13 06:05:24,454 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 538 transitions. Word has length 101 [2020-10-13 06:05:24,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:24,455 INFO L479 AbstractCegarLoop]: Abstraction has 413 states and 538 transitions. [2020-10-13 06:05:24,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:05:24,455 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 538 transitions. [2020-10-13 06:05:24,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-13 06:05:24,459 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:24,459 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:05:24,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:05:24,460 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:24,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:24,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1881423590, now seen corresponding path program 1 times [2020-10-13 06:05:24,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:24,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [712123212] [2020-10-13 06:05:24,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:24,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:24,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:24,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:24,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:26,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:28,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:28,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-13 06:05:28,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:05:28,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4060 [2020-10-13 06:05:28,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:28,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:28,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:05:28,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:05:28,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:28,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:28,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:28,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:28,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:28,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:28,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:28,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:28,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:28,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:28,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:28,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:28,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:28,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:28,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:28,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:05:28,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:28,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:05:28,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:28,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:28,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:28,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:05:28,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:28,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:05:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:28,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:28,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:28,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:05:28,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:28,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:05:28,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:28,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:28,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:05:28,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:05:28,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:28,691 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:05:28,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [712123212] [2020-10-13 06:05:28,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:28,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:05:28,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398051814] [2020-10-13 06:05:28,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:05:28,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:28,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:05:28,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:05:28,694 INFO L87 Difference]: Start difference. First operand 413 states and 538 transitions. Second operand 7 states. [2020-10-13 06:05:29,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:29,917 INFO L93 Difference]: Finished difference Result 1058 states and 1449 transitions. [2020-10-13 06:05:29,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 06:05:29,917 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2020-10-13 06:05:29,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:29,927 INFO L225 Difference]: With dead ends: 1058 [2020-10-13 06:05:29,927 INFO L226 Difference]: Without dead ends: 711 [2020-10-13 06:05:29,928 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:05:29,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2020-10-13 06:05:29,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 693. [2020-10-13 06:05:29,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2020-10-13 06:05:29,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 905 transitions. [2020-10-13 06:05:29,990 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 905 transitions. Word has length 110 [2020-10-13 06:05:29,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:29,992 INFO L479 AbstractCegarLoop]: Abstraction has 693 states and 905 transitions. [2020-10-13 06:05:29,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:05:29,993 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 905 transitions. [2020-10-13 06:05:30,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-13 06:05:30,003 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:30,004 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:05:30,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:05:30,005 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:30,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:30,006 INFO L82 PathProgramCache]: Analyzing trace with hash -419735237, now seen corresponding path program 1 times [2020-10-13 06:05:30,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:30,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593472894] [2020-10-13 06:05:30,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:30,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:30,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:30,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:30,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:31,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:34,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:35,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:35,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-13 06:05:35,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:05:35,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 06:05:35,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:35,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:35,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-13 06:05:35,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:05:35,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:35,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:35,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:35,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:35,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:35,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:35,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:05:35,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:35,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:35,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:35,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:35,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:35,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:35,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:35,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:35,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:35,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:05:35,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:35,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:05:35,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:35,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:35,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:35,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:35,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:35,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:05:35,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:35,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:35,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:35,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:05:35,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:35,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:05:35,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:35,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:35,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:35,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:05:35,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:35,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 06:05:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:35,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:35,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:35,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:05:35,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:35,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:05:35,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:35,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:35,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:05:35,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:05:35,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:35,219 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:05:35,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593472894] [2020-10-13 06:05:35,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:35,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:05:35,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824066703] [2020-10-13 06:05:35,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:05:35,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:35,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:05:35,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:05:35,222 INFO L87 Difference]: Start difference. First operand 693 states and 905 transitions. Second operand 7 states. [2020-10-13 06:05:36,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:36,547 INFO L93 Difference]: Finished difference Result 1765 states and 2352 transitions. [2020-10-13 06:05:36,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 06:05:36,548 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 125 [2020-10-13 06:05:36,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:36,556 INFO L225 Difference]: With dead ends: 1765 [2020-10-13 06:05:36,557 INFO L226 Difference]: Without dead ends: 1138 [2020-10-13 06:05:36,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:05:36,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2020-10-13 06:05:36,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 1128. [2020-10-13 06:05:36,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2020-10-13 06:05:36,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1419 transitions. [2020-10-13 06:05:36,619 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1419 transitions. Word has length 125 [2020-10-13 06:05:36,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:36,620 INFO L479 AbstractCegarLoop]: Abstraction has 1128 states and 1419 transitions. [2020-10-13 06:05:36,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:05:36,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1419 transitions. [2020-10-13 06:05:36,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-13 06:05:36,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:36,626 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:05:36,626 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:05:36,626 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:36,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:36,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1009442026, now seen corresponding path program 1 times [2020-10-13 06:05:36,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:36,627 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2140739481] [2020-10-13 06:05:36,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:36,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:36,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:37,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:38,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:39,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:40,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:40,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-13 06:05:40,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:05:40,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3867 [2020-10-13 06:05:40,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:40,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:40,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:05:40,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 06:05:40,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:40,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:40,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:40,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:40,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:40,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:40,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:40,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:40,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:40,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:40,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:40,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:40,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:40,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:40,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:40,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:40,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:05:40,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:40,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:05:40,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:40,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:40,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:40,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:05:40,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:40,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:05:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:40,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:40,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:40,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:05:40,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:40,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-13 06:05:40,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:40,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:40,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:05:40,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 06:05:40,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:40,755 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:05:40,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2140739481] [2020-10-13 06:05:40,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:40,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:05:40,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872929682] [2020-10-13 06:05:40,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:05:40,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:40,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:05:40,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:05:40,761 INFO L87 Difference]: Start difference. First operand 1128 states and 1419 transitions. Second operand 7 states. [2020-10-13 06:05:42,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:42,681 INFO L93 Difference]: Finished difference Result 3101 states and 3956 transitions. [2020-10-13 06:05:42,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 06:05:42,688 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 134 [2020-10-13 06:05:42,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:42,700 INFO L225 Difference]: With dead ends: 3101 [2020-10-13 06:05:42,700 INFO L226 Difference]: Without dead ends: 2039 [2020-10-13 06:05:42,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:05:42,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2039 states. [2020-10-13 06:05:42,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2039 to 1694. [2020-10-13 06:05:42,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1694 states. [2020-10-13 06:05:42,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1694 states to 1694 states and 2050 transitions. [2020-10-13 06:05:42,765 INFO L78 Accepts]: Start accepts. Automaton has 1694 states and 2050 transitions. Word has length 134 [2020-10-13 06:05:42,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:42,765 INFO L479 AbstractCegarLoop]: Abstraction has 1694 states and 2050 transitions. [2020-10-13 06:05:42,765 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:05:42,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1694 states and 2050 transitions. [2020-10-13 06:05:42,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-13 06:05:42,771 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:42,771 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:05:42,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:05:42,772 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:42,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:42,772 INFO L82 PathProgramCache]: Analyzing trace with hash 541606455, now seen corresponding path program 1 times [2020-10-13 06:05:42,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:42,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1024921090] [2020-10-13 06:05:42,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:42,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:42,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:43,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:43,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:46,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:47,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:47,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 06:05:47,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:05:47,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 06:05:47,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:05:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:05:47,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:47,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:47,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:47,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:47,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:47,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:47,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:47,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:47,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:47,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:47,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:47,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:47,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:47,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:47,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:47,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:47,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:47,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:05:47,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:47,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:05:47,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:47,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:47,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:47,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:05:47,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:47,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:05:47,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:47,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:47,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:47,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 06:05:47,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:47,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 06:05:47,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:47,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:47,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:05:47,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 06:05:47,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:47,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 06:05:47,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:47,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:47,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:47,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:05:47,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:47,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:05:47,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:47,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:47,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-13 06:05:47,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:47,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:48,017 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 59 proven. 11 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-13 06:05:48,018 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1024921090] [2020-10-13 06:05:48,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:48,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:05:48,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158430702] [2020-10-13 06:05:48,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:05:48,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:48,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:05:48,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:05:48,020 INFO L87 Difference]: Start difference. First operand 1694 states and 2050 transitions. Second operand 7 states. [2020-10-13 06:05:49,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:49,752 INFO L93 Difference]: Finished difference Result 3937 states and 4845 transitions. [2020-10-13 06:05:49,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 06:05:49,753 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 146 [2020-10-13 06:05:49,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:49,761 INFO L225 Difference]: With dead ends: 3937 [2020-10-13 06:05:49,762 INFO L226 Difference]: Without dead ends: 1880 [2020-10-13 06:05:49,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:05:49,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2020-10-13 06:05:49,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1678. [2020-10-13 06:05:49,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1678 states. [2020-10-13 06:05:49,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1678 states to 1678 states and 1901 transitions. [2020-10-13 06:05:49,814 INFO L78 Accepts]: Start accepts. Automaton has 1678 states and 1901 transitions. Word has length 146 [2020-10-13 06:05:49,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:49,814 INFO L479 AbstractCegarLoop]: Abstraction has 1678 states and 1901 transitions. [2020-10-13 06:05:49,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:05:49,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1678 states and 1901 transitions. [2020-10-13 06:05:49,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-13 06:05:49,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:49,820 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:05:49,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:05:49,821 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:49,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:49,821 INFO L82 PathProgramCache]: Analyzing trace with hash 145341574, now seen corresponding path program 1 times [2020-10-13 06:05:49,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:49,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [570105189] [2020-10-13 06:05:49,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:49,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:49,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:49,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:50,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:50,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:51,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:51,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:54,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:54,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-13 06:05:54,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:05:54,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 06:05:54,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:54,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:54,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 06:05:54,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:05:54,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:54,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:54,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:54,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:54,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:54,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:54,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:54,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:54,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:54,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:54,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:54,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:54,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:54,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:54,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:54,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:54,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:54,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:05:54,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:54,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:05:54,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:54,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:54,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:54,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:54,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:54,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:05:54,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:54,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:54,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:54,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:05:54,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:54,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:05:54,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:54,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:54,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:54,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:54,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:54,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 06:05:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:54,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:55,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:55,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 06:05:55,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:55,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 06:05:55,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:55,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:55,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:55,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:05:55,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:55,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 06:05:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:55,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:55,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:55,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:05:55,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:55,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:05:55,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:55,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:55,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:05:55,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:05:55,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:55,083 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 104 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-13 06:05:55,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [570105189] [2020-10-13 06:05:55,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:55,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:05:55,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354927039] [2020-10-13 06:05:55,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:05:55,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:55,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:05:55,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:05:55,086 INFO L87 Difference]: Start difference. First operand 1678 states and 1901 transitions. Second operand 7 states. [2020-10-13 06:05:56,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:56,271 INFO L93 Difference]: Finished difference Result 4005 states and 4646 transitions. [2020-10-13 06:05:56,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 06:05:56,276 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 178 [2020-10-13 06:05:56,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:56,286 INFO L225 Difference]: With dead ends: 4005 [2020-10-13 06:05:56,286 INFO L226 Difference]: Without dead ends: 2393 [2020-10-13 06:05:56,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:05:56,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2393 states. [2020-10-13 06:05:56,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2393 to 2109. [2020-10-13 06:05:56,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2109 states. [2020-10-13 06:05:56,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2109 states to 2109 states and 2401 transitions. [2020-10-13 06:05:56,357 INFO L78 Accepts]: Start accepts. Automaton has 2109 states and 2401 transitions. Word has length 178 [2020-10-13 06:05:56,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:56,358 INFO L479 AbstractCegarLoop]: Abstraction has 2109 states and 2401 transitions. [2020-10-13 06:05:56,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:05:56,358 INFO L276 IsEmpty]: Start isEmpty. Operand 2109 states and 2401 transitions. [2020-10-13 06:05:56,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-13 06:05:56,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:56,364 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:05:56,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:05:56,365 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:56,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:56,365 INFO L82 PathProgramCache]: Analyzing trace with hash -2142178157, now seen corresponding path program 1 times [2020-10-13 06:05:56,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:56,366 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1139369430] [2020-10-13 06:05:56,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:56,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:56,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:56,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:56,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:56,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:00,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:00,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:01,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:01,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-13 06:06:01,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:06:01,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 06:06:01,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:01,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:01,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 06:06:01,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:06:01,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:01,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:01,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:01,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:01,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:01,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:01,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:01,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:01,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:01,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:01,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:01,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:01,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:01,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:01,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:01,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:01,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:01,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:06:01,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:01,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 06:06:01,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:01,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:01,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:01,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 06:06:01,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:01,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:06:01,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:01,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:01,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:01,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:06:01,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:01,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:06:01,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:01,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:01,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:06:01,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:06:01,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:01,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:06:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:01,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:01,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:01,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:06:01,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:01,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:06:01,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:01,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:01,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-13 06:06:01,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:01,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:01,639 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 100 proven. 16 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 06:06:01,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1139369430] [2020-10-13 06:06:01,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:01,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:06:01,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173606646] [2020-10-13 06:06:01,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:06:01,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:01,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:06:01,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:06:01,641 INFO L87 Difference]: Start difference. First operand 2109 states and 2401 transitions. Second operand 7 states. [2020-10-13 06:06:02,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:02,655 INFO L93 Difference]: Finished difference Result 4029 states and 4542 transitions. [2020-10-13 06:06:02,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 06:06:02,660 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2020-10-13 06:06:02,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:02,670 INFO L225 Difference]: With dead ends: 4029 [2020-10-13 06:06:02,670 INFO L226 Difference]: Without dead ends: 2387 [2020-10-13 06:06:02,675 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:06:02,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2387 states. [2020-10-13 06:06:02,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2387 to 2379. [2020-10-13 06:06:02,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2379 states. [2020-10-13 06:06:02,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2379 states to 2379 states and 2656 transitions. [2020-10-13 06:06:02,740 INFO L78 Accepts]: Start accepts. Automaton has 2379 states and 2656 transitions. Word has length 181 [2020-10-13 06:06:02,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:02,740 INFO L479 AbstractCegarLoop]: Abstraction has 2379 states and 2656 transitions. [2020-10-13 06:06:02,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:06:02,740 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states and 2656 transitions. [2020-10-13 06:06:02,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-10-13 06:06:02,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:02,748 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:06:02,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:06:02,748 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:02,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:02,749 INFO L82 PathProgramCache]: Analyzing trace with hash 370255512, now seen corresponding path program 1 times [2020-10-13 06:06:02,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:02,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [735960088] [2020-10-13 06:06:02,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:02,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:02,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:03,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:03,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:06,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:07,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:07,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:07,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-10-13 06:06:07,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:06:07,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-13 06:06:07,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:07,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:07,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 06:06:07,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:06:07,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:07,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:07,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:07,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:07,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:07,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:07,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:07,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:07,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:07,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:07,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:07,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:07,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:07,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:07,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:07,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:07,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:07,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:06:07,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:07,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:06:07,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:07,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:07,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:07,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:07,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:07,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:06:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:07,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:07,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:07,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:06:07,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:07,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:06:07,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:07,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:07,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:07,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 06:06:07,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:07,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:06:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:07,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:07,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:07,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:06:07,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:07,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:06:07,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:07,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:07,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:06:07,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:06:07,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:08,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-13 06:06:08,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:08,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:08,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:08,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:06:08,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:08,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:06:08,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:08,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:08,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-13 06:06:08,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:08,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:08,046 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 128 proven. 16 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-10-13 06:06:08,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [735960088] [2020-10-13 06:06:08,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:08,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 06:06:08,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683971960] [2020-10-13 06:06:08,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 06:06:08,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:08,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 06:06:08,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:06:08,048 INFO L87 Difference]: Start difference. First operand 2379 states and 2656 transitions. Second operand 8 states. [2020-10-13 06:06:09,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:09,406 INFO L93 Difference]: Finished difference Result 5109 states and 5778 transitions. [2020-10-13 06:06:09,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 06:06:09,407 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 198 [2020-10-13 06:06:09,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:09,417 INFO L225 Difference]: With dead ends: 5109 [2020-10-13 06:06:09,418 INFO L226 Difference]: Without dead ends: 2649 [2020-10-13 06:06:09,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:06:09,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2649 states. [2020-10-13 06:06:09,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2649 to 2645. [2020-10-13 06:06:09,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2645 states. [2020-10-13 06:06:09,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 2940 transitions. [2020-10-13 06:06:09,502 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 2940 transitions. Word has length 198 [2020-10-13 06:06:09,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:09,502 INFO L479 AbstractCegarLoop]: Abstraction has 2645 states and 2940 transitions. [2020-10-13 06:06:09,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 06:06:09,502 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 2940 transitions. [2020-10-13 06:06:09,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-13 06:06:09,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:09,508 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:06:09,509 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:06:09,509 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:09,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:09,509 INFO L82 PathProgramCache]: Analyzing trace with hash 162442639, now seen corresponding path program 1 times [2020-10-13 06:06:09,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:09,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148593823] [2020-10-13 06:06:09,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 06:06:09,556 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 06:06:09,557 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 06:06:09,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:06:09,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:06:09 BoogieIcfgContainer [2020-10-13 06:06:09,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:06:09,608 INFO L168 Benchmark]: Toolchain (without parser) took 62151.34 ms. Allocated memory was 144.2 MB in the beginning and 1.0 GB in the end (delta: 892.9 MB). Free memory was 104.7 MB in the beginning and 360.8 MB in the end (delta: -256.1 MB). Peak memory consumption was 636.8 MB. Max. memory is 7.1 GB. [2020-10-13 06:06:09,609 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 144.2 MB. Free memory was 124.5 MB in the beginning and 124.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 06:06:09,610 INFO L168 Benchmark]: CACSL2BoogieTranslator took 732.50 ms. Allocated memory was 144.2 MB in the beginning and 208.1 MB in the end (delta: 64.0 MB). Free memory was 104.5 MB in the beginning and 174.5 MB in the end (delta: -70.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 7.1 GB. [2020-10-13 06:06:09,611 INFO L168 Benchmark]: Boogie Preprocessor took 115.00 ms. Allocated memory is still 208.1 MB. Free memory was 174.5 MB in the beginning and 169.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2020-10-13 06:06:09,612 INFO L168 Benchmark]: RCFGBuilder took 1249.33 ms. Allocated memory was 208.1 MB in the beginning and 233.3 MB in the end (delta: 25.2 MB). Free memory was 169.3 MB in the beginning and 168.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 73.8 MB. Max. memory is 7.1 GB. [2020-10-13 06:06:09,613 INFO L168 Benchmark]: TraceAbstraction took 60049.42 ms. Allocated memory was 233.3 MB in the beginning and 1.0 GB in the end (delta: 803.7 MB). Free memory was 166.8 MB in the beginning and 360.8 MB in the end (delta: -194.0 MB). Peak memory consumption was 609.8 MB. Max. memory is 7.1 GB. [2020-10-13 06:06:09,616 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 144.2 MB. Free memory was 124.5 MB in the beginning and 124.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 732.50 ms. Allocated memory was 144.2 MB in the beginning and 208.1 MB in the end (delta: 64.0 MB). Free memory was 104.5 MB in the beginning and 174.5 MB in the end (delta: -70.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.00 ms. Allocated memory is still 208.1 MB. Free memory was 174.5 MB in the beginning and 169.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1249.33 ms. Allocated memory was 208.1 MB in the beginning and 233.3 MB in the end (delta: 25.2 MB). Free memory was 169.3 MB in the beginning and 168.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 73.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 60049.42 ms. Allocated memory was 233.3 MB in the beginning and 1.0 GB in the end (delta: 803.7 MB). Free memory was 166.8 MB in the beginning and 360.8 MB in the end (delta: -194.0 MB). Peak memory consumption was 609.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 428]: 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 TRUE (((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8)) [L32] a16 = 5 [L33] a20 = 0 [L34] return 24; [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 TRUE ((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15))) [L266] a17 = 0 [L267] return 24; [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 TRUE ((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5)) [L313] a8 = 13 [L314] a16 = 4 [L315] return -1; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L273] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L278] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L286] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L292] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L299] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L306] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L312] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L316] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L318] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L324] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L329] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L333] COND FALSE !(((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15)))) [L337] COND FALSE !((!(a21==1)&&((a20==1)&&(((a12==8)&&((a8==13)&&((((a16==5)&&!(a17==1))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==2))))&&(a7==1))))) [L345] COND FALSE !(((a7==1)&&((a12==8)&&((((a20==1)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||((a16==4)&&!(a17==1))))&&(input==4)))&&(a8==13))&&!(a21==1))))) [L353] COND FALSE !(((a21==1)&&((((!(a7==1)&&((a8==15)&&(!(a20==1)&&(input==4))))&&(a17==1))&&(a16==5))&&(a12==8)))) [L355] COND FALSE !((((!(a7==1)&&((!(a20==1)&&((a21==1)&&((input==3)&&(a17==1))))&&(a8==15)))&&(a12==8))&&(a16==5))) [L361] COND FALSE !(((((!(a17==1)&&(!(a20==1)&&((a8==15)&&((input==1)&&(a16==5)))))&&(a12==8))&&(a21==1))&&!(a7==1))) [L363] COND FALSE !(((((a21==1)&&((a8==15)&&(((a16==5)&&((a12==8)&&(input==1)))&&(a17==1))))&&!(a7==1))&&!(a20==1))) [L365] COND FALSE !(((!(a21==1)&&((a20==1)&&((((a8==13)&&((a7==1)&&(input==5)))&&(a17==1))&&(a12==8))))&&(a16==5))) [L372] COND FALSE !((((!(a7==1)&&((a21==1)&&((((input==6)&&(a20==1))&&(a8==15))&&!(a17==1))))&&(a12==8))&&(a16==4))) [L377] COND FALSE !(((((a20==1)&&(((!(a21==1)&&((a7==1)&&(input==1)))&&(a8==13))&&(a17==1)))&&(a12==8))&&(a16==5))) [L382] COND FALSE !(((a12==8)&&((input==5)&&((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==15))&&(a16==6))&&(a21==1))||(!(a21==1)&&((a16==4)&&(((a20==1)&&((a7==1)&&(a17==1)))&&(a8==13)))))))) [L391] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L394] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L397] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==4))&&(a21==1))) [L400] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==6))&&(a21==1))) [L403] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L406] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==5))&&(a21==1))) [L409] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1))) [L412] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L415] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==4))&&(a21==1))) [L418] COND FALSE !(((((((!(a17==1)&&(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1))) [L421] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==4))&&(a21==1))) [L424] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1))) [L427] COND TRUE ((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==13))&&(a12==8))&&(a16==4))&&(a21==1)) [L428] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 59.9s, OverallIterations: 11, TraceHistogramMax: 5, AutomataDifference: 17.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 262 SDtfs, 4208 SDslu, 356 SDs, 0 SdLazy, 9248 SolverSat, 1275 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 211 GetRequests, 94 SyntacticMatches, 4 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2645occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 891 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 40.2s InterpolantComputationTime, 1567 NumberOfCodeBlocks, 1567 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1351 ConstructedInterpolants, 0 QuantifiedInterpolants, 1051426 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 660/713 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...