/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=BIGGEST --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 [2020-10-12 11:08:47,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 11:08:47,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 11:08:47,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 11:08:47,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 11:08:47,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 11:08:47,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 11:08:47,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 11:08:47,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 11:08:47,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 11:08:47,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 11:08:47,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 11:08:47,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 11:08:47,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 11:08:47,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 11:08:47,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 11:08:47,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 11:08:47,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 11:08:47,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 11:08:47,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 11:08:47,245 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 11:08:47,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 11:08:47,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 11:08:47,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 11:08:47,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 11:08:47,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 11:08:47,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 11:08:47,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 11:08:47,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 11:08:47,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 11:08:47,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 11:08:47,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 11:08:47,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 11:08:47,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 11:08:47,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 11:08:47,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 11:08:47,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 11:08:47,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 11:08:47,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 11:08:47,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 11:08:47,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 11:08:47,266 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 [2020-10-12 11:08:47,319 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 11:08:47,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 11:08:47,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 11:08:47,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 11:08:47,320 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 11:08:47,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 11:08:47,321 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 11:08:47,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 11:08:47,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 11:08:47,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 11:08:47,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 11:08:47,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 11:08:47,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 11:08:47,325 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 11:08:47,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 11:08:47,325 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 11:08:47,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 11:08:47,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 11:08:47,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 11:08:47,326 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 11:08:47,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 11:08:47,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 11:08:47,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 11:08:47,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 11:08:47,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 11:08:47,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 11:08:47,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 11:08:47,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 11:08:47,329 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 11:08:47,329 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 11:08:47,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 11:08:47,654 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 11:08:47,657 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 11:08:47,659 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 11:08:47,659 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 11:08:47,660 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label44.c [2020-10-12 11:08:47,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9beaf75f3/3f14651b1b7e4efbb7142725caffaedc/FLAG86a011adb [2020-10-12 11:08:48,255 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 11:08:48,256 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label44.c [2020-10-12 11:08:48,271 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9beaf75f3/3f14651b1b7e4efbb7142725caffaedc/FLAG86a011adb [2020-10-12 11:08:48,535 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9beaf75f3/3f14651b1b7e4efbb7142725caffaedc [2020-10-12 11:08:48,546 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 11:08:48,549 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 11:08:48,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 11:08:48,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 11:08:48,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 11:08:48,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:08:48" (1/1) ... [2020-10-12 11:08:48,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@532b1c07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:08:48, skipping insertion in model container [2020-10-12 11:08:48,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:08:48" (1/1) ... [2020-10-12 11:08:48,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 11:08:48,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 11:08:49,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:08:49,118 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 11:08:49,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:08:49,345 INFO L208 MainTranslator]: Completed translation [2020-10-12 11:08:49,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:08:49 WrapperNode [2020-10-12 11:08:49,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 11:08:49,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 11:08:49,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 11:08:49,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 11:08:49,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:08:49" (1/1) ... [2020-10-12 11:08:49,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:08:49" (1/1) ... [2020-10-12 11:08:49,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:08:49" (1/1) ... [2020-10-12 11:08:49,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:08:49" (1/1) ... [2020-10-12 11:08:49,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:08:49" (1/1) ... [2020-10-12 11:08:49,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:08:49" (1/1) ... [2020-10-12 11:08:49,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:08:49" (1/1) ... [2020-10-12 11:08:49,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 11:08:49,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 11:08:49,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 11:08:49,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 11:08:49,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:08:49" (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 [2020-10-12 11:08:49,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 11:08:49,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 11:08:49,552 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 11:08:49,552 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 11:08:49,552 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 11:08:49,552 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 11:08:49,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 11:08:49,553 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 11:08:49,554 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 11:08:49,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 11:08:49,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 11:08:50,680 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 11:08:50,680 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 11:08:50,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:08:50 BoogieIcfgContainer [2020-10-12 11:08:50,687 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 11:08:50,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 11:08:50,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 11:08:50,691 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 11:08:50,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:08:48" (1/3) ... [2020-10-12 11:08:50,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac6017a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:08:50, skipping insertion in model container [2020-10-12 11:08:50,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:08:49" (2/3) ... [2020-10-12 11:08:50,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac6017a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:08:50, skipping insertion in model container [2020-10-12 11:08:50,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:08:50" (3/3) ... [2020-10-12 11:08:50,696 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label44.c [2020-10-12 11:08:50,707 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 11:08:50,715 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 11:08:50,730 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 11:08:50,760 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 11:08:50,760 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 11:08:50,760 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 11:08:50,760 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 11:08:50,761 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 11:08:50,761 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 11:08:50,761 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 11:08:50,761 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 11:08:50,785 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-12 11:08:50,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-12 11:08:50,795 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:08:50,797 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] [2020-10-12 11:08:50,797 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:08:50,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:08:50,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1855725642, now seen corresponding path program 1 times [2020-10-12 11:08:50,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:08:50,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749757271] [2020-10-12 11:08:50,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:08:51,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:51,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:51,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:52,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:52,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 11:08:52,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:08:52,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1811 [2020-10-12 11:08:52,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:52,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 11:08:52,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:08:52,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 11:08:52,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 11:08:53,589 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 37 [2020-10-12 11:08:53,732 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 33 [2020-10-12 11:08:53,861 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 34 [2020-10-12 11:08:54,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:08:54,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:54,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:54,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:54,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:08:54,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:54,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 11:08:54,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:54,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:08:54,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:54,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:08:54,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 11:08:54,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:08:54,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1749757271] [2020-10-12 11:08:54,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 11:08:54,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 11:08:54,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155716717] [2020-10-12 11:08:54,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:08:54,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:08:54,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:08:54,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:08:54,591 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 13 states. [2020-10-12 11:08:55,009 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2020-10-12 11:08:55,214 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2020-10-12 11:08:55,473 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 98 [2020-10-12 11:08:55,710 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 95 [2020-10-12 11:08:56,115 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 94 [2020-10-12 11:08:56,564 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2020-10-12 11:08:57,064 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2020-10-12 11:08:57,482 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-10-12 11:08:58,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:08:58,498 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-12 11:08:58,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:08:58,500 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 90 [2020-10-12 11:08:58,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:08:58,515 INFO L225 Difference]: With dead ends: 474 [2020-10-12 11:08:58,516 INFO L226 Difference]: Without dead ends: 205 [2020-10-12 11:08:58,523 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:08:58,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-12 11:08:58,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-12 11:08:58,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-12 11:08:58,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-12 11:08:58,594 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 90 [2020-10-12 11:08:58,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:08:58,595 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-12 11:08:58,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:08:58,595 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-12 11:08:58,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-12 11:08:58,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:08:58,601 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] [2020-10-12 11:08:58,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 11:08:58,601 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:08:58,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:08:58,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1107181265, now seen corresponding path program 1 times [2020-10-12 11:08:58,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:08:58,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770153283] [2020-10-12 11:08:58,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:08:58,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:58,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:58,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:59,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:00,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:00,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 11:09:00,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:09:00,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1396 [2020-10-12 11:09:00,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:00,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:09:00,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:09:00,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 11:09:00,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:00,483 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 45 [2020-10-12 11:09:01,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:09:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:01,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:01,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:01,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:09:01,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:01,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:09:01,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:01,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:01,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:01,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:01,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:01,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:09:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:01,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:01,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:01,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:09:01,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:01,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:09:01,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:01,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:09:01,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:01,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 11:09:01,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:01,285 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:09:01,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770153283] [2020-10-12 11:09:01,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:09:01,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:09:01,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801409510] [2020-10-12 11:09:01,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:09:01,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:09:01,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:09:01,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:09:01,289 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-12 11:09:01,663 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-12 11:09:02,141 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 100 [2020-10-12 11:09:02,890 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2020-10-12 11:09:03,230 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 94 [2020-10-12 11:09:03,630 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2020-10-12 11:09:03,836 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 86 [2020-10-12 11:09:04,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:09:04,449 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-12 11:09:04,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 11:09:04,449 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 98 [2020-10-12 11:09:04,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:09:04,453 INFO L225 Difference]: With dead ends: 433 [2020-10-12 11:09:04,454 INFO L226 Difference]: Without dead ends: 294 [2020-10-12 11:09:04,455 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-12 11:09:04,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-12 11:09:04,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-12 11:09:04,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-12 11:09:04,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-12 11:09:04,480 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 98 [2020-10-12 11:09:04,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:09:04,480 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-12 11:09:04,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:09:04,481 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-12 11:09:04,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-12 11:09:04,485 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:09:04,486 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] [2020-10-12 11:09:04,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 11:09:04,486 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:09:04,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:09:04,487 INFO L82 PathProgramCache]: Analyzing trace with hash 2111365455, now seen corresponding path program 1 times [2020-10-12 11:09:04,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:09:04,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2048368304] [2020-10-12 11:09:04,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:09:04,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:04,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:04,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:05,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:05,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 11:09:05,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:09:05,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 619 [2020-10-12 11:09:05,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:05,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:09:05,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:09:05,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 11:09:05,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:05,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:09:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:05,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:05,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:05,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:09:05,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:05,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:09:05,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:05,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:09:05,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:05,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:09:05,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:09:05,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:09:05,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:05,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:05,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:05,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:05,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:09:05,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:09:05,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 11:09:05,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:05,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:09:05,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:09:05,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:09:05,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:09:05,374 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 11:09:05,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2048368304] [2020-10-12 11:09:05,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:09:05,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:09:05,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665575999] [2020-10-12 11:09:05,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 11:09:05,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:09:05,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 11:09:05,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:09:05,377 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 6 states. [2020-10-12 11:09:06,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:09:06,523 INFO L93 Difference]: Finished difference Result 633 states and 863 transitions. [2020-10-12 11:09:06,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 11:09:06,524 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2020-10-12 11:09:06,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:09:06,529 INFO L225 Difference]: With dead ends: 633 [2020-10-12 11:09:06,529 INFO L226 Difference]: Without dead ends: 423 [2020-10-12 11:09:06,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:09:06,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-10-12 11:09:06,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2020-10-12 11:09:06,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-10-12 11:09:06,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 542 transitions. [2020-10-12 11:09:06,559 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 542 transitions. Word has length 101 [2020-10-12 11:09:06,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:09:06,559 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 542 transitions. [2020-10-12 11:09:06,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 11:09:06,559 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 542 transitions. [2020-10-12 11:09:06,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-12 11:09:06,563 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:09:06,563 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] [2020-10-12 11:09:06,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 11:09:06,564 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:09:06,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:09:06,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1881423590, now seen corresponding path program 1 times [2020-10-12 11:09:06,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:09:06,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1289783246] [2020-10-12 11:09:06,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:09:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:06,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:06,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:06,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:09,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:10,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:10,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-12 11:09:10,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:09:10,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4190 [2020-10-12 11:09:10,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:10,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:09:10,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-12 11:09:10,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 11:09:10,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:09:11,280 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 39 [2020-10-12 11:09:11,407 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 38 [2020-10-12 11:09:11,530 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 36 [2020-10-12 11:09:11,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:09:11,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:11,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:11,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:11,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:09:11,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:11,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:09:11,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:11,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:11,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:11,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:11,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:11,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:09:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:11,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:11,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:11,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:09:11,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:11,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:09:11,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:11,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:11,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:11,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:11,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:11,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:09:11,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:11,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:11,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:11,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 11:09:11,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:11,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 11:09:11,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:11,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:09:11,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:11,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 11:09:11,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:12,015 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-12 11:09:12,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1289783246] [2020-10-12 11:09:12,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:09:12,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:09:12,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709931647] [2020-10-12 11:09:12,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:09:12,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:09:12,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:09:12,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:09:12,018 INFO L87 Difference]: Start difference. First operand 417 states and 542 transitions. Second operand 13 states. [2020-10-12 11:09:12,722 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2020-10-12 11:09:12,997 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 89 [2020-10-12 11:09:13,242 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-10-12 11:09:13,786 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2020-10-12 11:09:14,309 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2020-10-12 11:09:14,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:09:14,780 INFO L93 Difference]: Finished difference Result 847 states and 1166 transitions. [2020-10-12 11:09:14,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:09:14,781 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 110 [2020-10-12 11:09:14,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:09:14,787 INFO L225 Difference]: With dead ends: 847 [2020-10-12 11:09:14,787 INFO L226 Difference]: Without dead ends: 496 [2020-10-12 11:09:14,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:09:14,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-10-12 11:09:14,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 490. [2020-10-12 11:09:14,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-10-12 11:09:14,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 623 transitions. [2020-10-12 11:09:14,812 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 623 transitions. Word has length 110 [2020-10-12 11:09:14,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:09:14,812 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 623 transitions. [2020-10-12 11:09:14,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:09:14,813 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 623 transitions. [2020-10-12 11:09:14,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-12 11:09:14,816 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:09:14,816 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:09:14,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 11:09:14,817 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:09:14,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:09:14,817 INFO L82 PathProgramCache]: Analyzing trace with hash 101748818, now seen corresponding path program 1 times [2020-10-12 11:09:14,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:09:14,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602493864] [2020-10-12 11:09:14,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:09:14,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:14,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:14,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:15,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:15,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:16,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:16,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:16,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-12 11:09:16,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:09:16,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1856 [2020-10-12 11:09:16,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:16,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:09:16,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:09:16,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 11:09:16,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:16,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:09:16,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:16,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:16,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:16,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:09:16,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:16,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:09:16,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:16,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:09:16,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:16,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:09:16,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:16,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:09:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:16,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:16,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:16,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:16,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:09:16,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:09:16,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 11:09:16,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:16,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:09:16,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:09:16,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:09:16,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:16,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:09:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:16,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:16,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:16,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:09:16,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:16,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 11:09:16,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:16,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:09:16,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:09:16,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 11:09:16,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:16,941 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 11:09:16,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602493864] [2020-10-12 11:09:16,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:09:16,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:09:16,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830422538] [2020-10-12 11:09:16,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 11:09:16,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:09:16,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 11:09:16,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:09:16,943 INFO L87 Difference]: Start difference. First operand 490 states and 623 transitions. Second operand 8 states. [2020-10-12 11:09:18,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:09:18,280 INFO L93 Difference]: Finished difference Result 1218 states and 1634 transitions. [2020-10-12 11:09:18,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 11:09:18,281 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 121 [2020-10-12 11:09:18,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:09:18,287 INFO L225 Difference]: With dead ends: 1218 [2020-10-12 11:09:18,287 INFO L226 Difference]: Without dead ends: 794 [2020-10-12 11:09:18,290 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:09:18,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2020-10-12 11:09:18,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 778. [2020-10-12 11:09:18,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 778 states. [2020-10-12 11:09:18,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1000 transitions. [2020-10-12 11:09:18,333 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1000 transitions. Word has length 121 [2020-10-12 11:09:18,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:09:18,334 INFO L479 AbstractCegarLoop]: Abstraction has 778 states and 1000 transitions. [2020-10-12 11:09:18,334 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 11:09:18,334 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1000 transitions. [2020-10-12 11:09:18,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-12 11:09:18,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:09:18,341 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] [2020-10-12 11:09:18,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 11:09:18,341 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:09:18,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:09:18,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1009442026, now seen corresponding path program 1 times [2020-10-12 11:09:18,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:09:18,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [760462001] [2020-10-12 11:09:18,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:09:18,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:18,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:18,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:18,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:20,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:21,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:22,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:22,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-12 11:09:22,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:09:22,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4205 [2020-10-12 11:09:22,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:22,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:09:22,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-12 11:09:22,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 11:09:22,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:09:23,178 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 42 [2020-10-12 11:09:23,309 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 40 [2020-10-12 11:09:23,468 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 38 [2020-10-12 11:09:23,611 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 36 [2020-10-12 11:09:23,745 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 33 [2020-10-12 11:09:23,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:09:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:23,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:23,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:23,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:09:23,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:23,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:09:23,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:23,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:23,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:23,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:23,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:23,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:09:23,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:23,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:23,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:23,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:09:23,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:23,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:09:23,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:23,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:23,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:23,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:23,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:23,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:09:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:23,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:23,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:23,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 11:09:23,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:23,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 11:09:23,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:23,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:09:23,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:23,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-12 11:09:23,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:24,034 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:09:24,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [760462001] [2020-10-12 11:09:24,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:09:24,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:09:24,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440301017] [2020-10-12 11:09:24,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:09:24,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:09:24,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:09:24,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:09:24,037 INFO L87 Difference]: Start difference. First operand 778 states and 1000 transitions. Second operand 13 states. [2020-10-12 11:09:24,503 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-12 11:09:25,028 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-12 11:09:25,391 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2020-10-12 11:09:25,636 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2020-10-12 11:09:26,017 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2020-10-12 11:09:26,406 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2020-10-12 11:09:26,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:09:26,653 INFO L93 Difference]: Finished difference Result 1554 states and 2045 transitions. [2020-10-12 11:09:26,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:09:26,656 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 134 [2020-10-12 11:09:26,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:09:26,661 INFO L225 Difference]: With dead ends: 1554 [2020-10-12 11:09:26,661 INFO L226 Difference]: Without dead ends: 842 [2020-10-12 11:09:26,663 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:09:26,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2020-10-12 11:09:26,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 842. [2020-10-12 11:09:26,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 842 states. [2020-10-12 11:09:26,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1075 transitions. [2020-10-12 11:09:26,695 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1075 transitions. Word has length 134 [2020-10-12 11:09:26,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:09:26,695 INFO L479 AbstractCegarLoop]: Abstraction has 842 states and 1075 transitions. [2020-10-12 11:09:26,695 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:09:26,696 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1075 transitions. [2020-10-12 11:09:26,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-12 11:09:26,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:09:26,699 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:09:26,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 11:09:26,700 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:09:26,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:09:26,700 INFO L82 PathProgramCache]: Analyzing trace with hash -844609135, now seen corresponding path program 1 times [2020-10-12 11:09:26,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:09:26,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1663521850] [2020-10-12 11:09:26,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:09:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:26,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:26,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:27,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:27,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:27,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:29,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:29,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-12 11:09:29,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:09:29,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2383 [2020-10-12 11:09:29,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:29,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:09:29,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:09:29,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 11:09:29,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:29,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:09:29,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:29,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:29,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:29,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:09:29,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:29,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:09:29,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:29,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:09:29,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:29,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:09:29,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:29,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:09:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:29,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:29,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:29,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:29,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:09:29,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:09:29,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 11:09:29,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:29,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:09:29,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:09:29,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:09:29,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:29,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:09:29,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:29,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:29,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:29,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:09:29,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:29,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 11:09:29,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:29,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:09:29,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:09:29,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 11:09:29,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:29,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 11:09:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:29,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:29,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:29,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:09:29,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:29,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 11:09:29,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:29,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:29,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:09:29,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:29,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:09:29,421 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 42 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-12 11:09:29,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1663521850] [2020-10-12 11:09:29,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:09:29,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 11:09:29,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992487576] [2020-10-12 11:09:29,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 11:09:29,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:09:29,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 11:09:29,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:09:29,426 INFO L87 Difference]: Start difference. First operand 842 states and 1075 transitions. Second operand 8 states. [2020-10-12 11:09:30,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:09:30,985 INFO L93 Difference]: Finished difference Result 1636 states and 2108 transitions. [2020-10-12 11:09:30,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 11:09:30,986 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 136 [2020-10-12 11:09:30,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:09:30,992 INFO L225 Difference]: With dead ends: 1636 [2020-10-12 11:09:30,992 INFO L226 Difference]: Without dead ends: 860 [2020-10-12 11:09:30,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-12 11:09:30,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2020-10-12 11:09:31,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 846. [2020-10-12 11:09:31,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 846 states. [2020-10-12 11:09:31,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1073 transitions. [2020-10-12 11:09:31,035 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1073 transitions. Word has length 136 [2020-10-12 11:09:31,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:09:31,035 INFO L479 AbstractCegarLoop]: Abstraction has 846 states and 1073 transitions. [2020-10-12 11:09:31,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 11:09:31,036 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1073 transitions. [2020-10-12 11:09:31,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-12 11:09:31,038 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:09:31,039 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:09:31,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 11:09:31,039 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:09:31,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:09:31,039 INFO L82 PathProgramCache]: Analyzing trace with hash -250360866, now seen corresponding path program 1 times [2020-10-12 11:09:31,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:09:31,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [506507724] [2020-10-12 11:09:31,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:09:31,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:31,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:31,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:31,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:33,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:34,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:34,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:34,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-12 11:09:34,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:09:34,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3589 [2020-10-12 11:09:34,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:34,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:09:34,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 11:09:34,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 11:09:34,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:35,075 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-10-12 11:09:35,261 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-12 11:09:35,480 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 51 [2020-10-12 11:09:35,704 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 48 [2020-10-12 11:09:35,915 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 45 [2020-10-12 11:09:36,100 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 41 [2020-10-12 11:09:36,279 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 35 [2020-10-12 11:09:36,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:09:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:36,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:36,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:36,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:09:36,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:36,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:09:36,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:36,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:36,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:36,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:36,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:36,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:09:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:36,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:36,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:36,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:09:36,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:36,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:09:36,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:36,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:36,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:36,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:36,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:36,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:09:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:36,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:36,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:36,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 11:09:36,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:36,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 11:09:36,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:36,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:09:36,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:36,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 11:09:36,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:36,528 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:09:36,528 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [506507724] [2020-10-12 11:09:36,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:09:36,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:09:36,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110342901] [2020-10-12 11:09:36,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:09:36,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:09:36,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:09:36,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:09:36,530 INFO L87 Difference]: Start difference. First operand 846 states and 1073 transitions. Second operand 13 states. [2020-10-12 11:09:37,102 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-12 11:09:37,290 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 11:09:37,790 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 114 [2020-10-12 11:09:38,292 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 111 [2020-10-12 11:09:38,643 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 108 [2020-10-12 11:09:38,862 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 58 [2020-10-12 11:09:39,149 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 105 [2020-10-12 11:09:39,731 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 100 [2020-10-12 11:09:40,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:09:40,006 INFO L93 Difference]: Finished difference Result 1690 states and 2188 transitions. [2020-10-12 11:09:40,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:09:40,007 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 140 [2020-10-12 11:09:40,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:09:40,013 INFO L225 Difference]: With dead ends: 1690 [2020-10-12 11:09:40,013 INFO L226 Difference]: Without dead ends: 910 [2020-10-12 11:09:40,016 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:09:40,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2020-10-12 11:09:40,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 904. [2020-10-12 11:09:40,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 904 states. [2020-10-12 11:09:40,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1141 transitions. [2020-10-12 11:09:40,044 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1141 transitions. Word has length 140 [2020-10-12 11:09:40,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:09:40,045 INFO L479 AbstractCegarLoop]: Abstraction has 904 states and 1141 transitions. [2020-10-12 11:09:40,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:09:40,045 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1141 transitions. [2020-10-12 11:09:40,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-12 11:09:40,048 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:09:40,048 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:09:40,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 11:09:40,049 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:09:40,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:09:40,049 INFO L82 PathProgramCache]: Analyzing trace with hash -551116904, now seen corresponding path program 1 times [2020-10-12 11:09:40,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:09:40,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1499369566] [2020-10-12 11:09:40,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:09:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:40,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:40,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:40,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:40,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:40,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:41,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:41,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 11:09:41,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:09:41,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1585 [2020-10-12 11:09:41,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:41,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 11:09:41,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:09:41,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 11:09:41,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:42,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:09:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:42,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:42,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:42,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:09:42,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:42,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:09:42,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:42,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:42,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:42,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:42,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:42,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:09:42,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:42,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:42,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:42,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:09:42,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:42,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:09:42,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:42,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:09:42,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:42,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 11:09:42,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:42,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:09:42,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:42,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:42,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:42,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:09:42,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:42,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 11:09:42,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:42,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:09:42,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:09:42,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:09:42,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:43,088 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 11:09:43,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1499369566] [2020-10-12 11:09:43,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:09:43,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 11:09:43,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132076570] [2020-10-12 11:09:43,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 11:09:43,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:09:43,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 11:09:43,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:09:43,091 INFO L87 Difference]: Start difference. First operand 904 states and 1141 transitions. Second operand 20 states. [2020-10-12 11:09:43,789 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-12 11:09:44,061 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-12 11:09:44,351 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-12 11:09:44,692 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-12 11:09:44,938 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-12 11:09:45,221 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-10-12 11:09:45,437 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-12 11:09:45,775 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-12 11:09:45,989 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-12 11:09:46,311 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2020-10-12 11:09:46,520 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2020-10-12 11:09:46,743 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-12 11:09:47,191 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-10-12 11:09:48,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:09:48,369 INFO L93 Difference]: Finished difference Result 1849 states and 2386 transitions. [2020-10-12 11:09:48,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-12 11:09:48,372 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 148 [2020-10-12 11:09:48,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:09:48,377 INFO L225 Difference]: With dead ends: 1849 [2020-10-12 11:09:48,377 INFO L226 Difference]: Without dead ends: 1011 [2020-10-12 11:09:48,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=557, Invalid=1335, Unknown=0, NotChecked=0, Total=1892 [2020-10-12 11:09:48,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2020-10-12 11:09:48,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 975. [2020-10-12 11:09:48,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 975 states. [2020-10-12 11:09:48,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1225 transitions. [2020-10-12 11:09:48,414 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1225 transitions. Word has length 148 [2020-10-12 11:09:48,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:09:48,415 INFO L479 AbstractCegarLoop]: Abstraction has 975 states and 1225 transitions. [2020-10-12 11:09:48,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 11:09:48,415 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1225 transitions. [2020-10-12 11:09:48,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-12 11:09:48,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:09:48,419 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:09:48,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 11:09:48,420 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:09:48,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:09:48,420 INFO L82 PathProgramCache]: Analyzing trace with hash 491184885, now seen corresponding path program 1 times [2020-10-12 11:09:48,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:09:48,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1849341659] [2020-10-12 11:09:48,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:09:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:48,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:48,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:48,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:48,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:51,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:51,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:53,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:53,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:53,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-12 11:09:53,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 11:09:53,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 11:09:53,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:53,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:09:53,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 11:09:53,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 11:09:53,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:54,006 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 41 [2020-10-12 11:09:54,156 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 39 [2020-10-12 11:09:54,303 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 37 [2020-10-12 11:09:54,457 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 35 [2020-10-12 11:09:54,602 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 32 [2020-10-12 11:09:54,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:09:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:54,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:54,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:54,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:09:54,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:54,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:09:54,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:54,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:54,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:54,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:54,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:54,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:09:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:54,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:54,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:54,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:09:54,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:54,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:09:54,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:54,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:54,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:54,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:54,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:54,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:09:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:54,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:54,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:54,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 11:09:54,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:54,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:09:54,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:54,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:54,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:54,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:54,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 18 [2020-10-12 11:09:54,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 11:09:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:54,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:54,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:54,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 11:09:54,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:54,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:09:54,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:09:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 11:09:54,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:54,880 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 54 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-12 11:09:54,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1849341659] [2020-10-12 11:09:54,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:09:54,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:09:54,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836457050] [2020-10-12 11:09:54,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:09:54,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:09:54,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:09:54,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:09:54,882 INFO L87 Difference]: Start difference. First operand 975 states and 1225 transitions. Second operand 13 states. [2020-10-12 11:09:55,220 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-12 11:09:55,596 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-12 11:09:56,171 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2020-10-12 11:09:56,499 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 90 [2020-10-12 11:09:56,826 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89 [2020-10-12 11:09:57,064 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2020-10-12 11:09:58,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:09:58,004 INFO L93 Difference]: Finished difference Result 2066 states and 2644 transitions. [2020-10-12 11:09:58,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 11:09:58,009 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 150 [2020-10-12 11:09:58,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:09:58,015 INFO L225 Difference]: With dead ends: 2066 [2020-10-12 11:09:58,015 INFO L226 Difference]: Without dead ends: 1157 [2020-10-12 11:09:58,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2020-10-12 11:09:58,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2020-10-12 11:09:58,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1050. [2020-10-12 11:09:58,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1050 states. [2020-10-12 11:09:58,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1309 transitions. [2020-10-12 11:09:58,055 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1309 transitions. Word has length 150 [2020-10-12 11:09:58,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:09:58,055 INFO L479 AbstractCegarLoop]: Abstraction has 1050 states and 1309 transitions. [2020-10-12 11:09:58,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:09:58,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1309 transitions. [2020-10-12 11:09:58,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-12 11:09:58,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:09:58,060 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 11:09:58,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 11:09:58,061 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:09:58,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:09:58,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1892165178, now seen corresponding path program 1 times [2020-10-12 11:09:58,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:09:58,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1373738682] [2020-10-12 11:09:58,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:09:58,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:58,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:58,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:58,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:59,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:00,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:00,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:00,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-12 11:10:00,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:10:00,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2891 [2020-10-12 11:10:00,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:00,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:10:00,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 11:10:00,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 11:10:00,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:01,420 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-10-12 11:10:01,639 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-12 11:10:01,858 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 49 [2020-10-12 11:10:02,069 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 45 [2020-10-12 11:10:02,261 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 41 [2020-10-12 11:10:02,442 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 37 [2020-10-12 11:10:02,621 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 32 [2020-10-12 11:10:02,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:10:02,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:02,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:02,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:02,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:10:02,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:02,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:10:02,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:02,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:02,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:02,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:02,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:02,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:10:02,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:02,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:02,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:02,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:10:02,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:02,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:10:02,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:02,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:02,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:02,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:02,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:02,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:10:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:02,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:02,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:02,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:10:02,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:02,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 11:10:02,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:02,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:10:02,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:02,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 11:10:02,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:02,865 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:10:02,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1373738682] [2020-10-12 11:10:02,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:10:02,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:10:02,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015272741] [2020-10-12 11:10:02,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:10:02,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:10:02,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:10:02,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:10:02,867 INFO L87 Difference]: Start difference. First operand 1050 states and 1309 transitions. Second operand 13 states. [2020-10-12 11:10:03,359 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 42 [2020-10-12 11:10:03,548 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-12 11:10:03,737 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 11:10:04,109 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 113 [2020-10-12 11:10:04,475 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 110 [2020-10-12 11:10:05,100 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 107 [2020-10-12 11:10:05,503 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 104 [2020-10-12 11:10:05,933 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 99 [2020-10-12 11:10:06,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:10:06,397 INFO L93 Difference]: Finished difference Result 2102 states and 2672 transitions. [2020-10-12 11:10:06,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:10:06,402 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 152 [2020-10-12 11:10:06,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:10:06,406 INFO L225 Difference]: With dead ends: 2102 [2020-10-12 11:10:06,406 INFO L226 Difference]: Without dead ends: 1118 [2020-10-12 11:10:06,409 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-12 11:10:06,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2020-10-12 11:10:06,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1110. [2020-10-12 11:10:06,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1110 states. [2020-10-12 11:10:06,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1377 transitions. [2020-10-12 11:10:06,441 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1377 transitions. Word has length 152 [2020-10-12 11:10:06,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:10:06,441 INFO L479 AbstractCegarLoop]: Abstraction has 1110 states and 1377 transitions. [2020-10-12 11:10:06,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:10:06,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1377 transitions. [2020-10-12 11:10:06,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-12 11:10:06,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:10:06,446 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:10:06,446 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 11:10:06,446 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:10:06,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:10:06,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1255097349, now seen corresponding path program 1 times [2020-10-12 11:10:06,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:10:06,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [418710460] [2020-10-12 11:10:06,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:10:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:06,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:06,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:06,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:07,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:07,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:07,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:08,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:10,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:11,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:11,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-12 11:10:11,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 11:10:11,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 11:10:11,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:11,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 11:10:11,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 11:10:11,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 11:10:11,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:11,907 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-10-12 11:10:12,107 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 48 [2020-10-12 11:10:12,235 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 40 [2020-10-12 11:10:12,415 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2020-10-12 11:10:12,672 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 44 [2020-10-12 11:10:12,929 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 43 [2020-10-12 11:10:13,092 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 41 [2020-10-12 11:10:13,305 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 36 [2020-10-12 11:10:13,504 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 35 [2020-10-12 11:10:13,708 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 34 [2020-10-12 11:10:13,894 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 32 [2020-10-12 11:10:14,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:10:14,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:14,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:14,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:14,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:10:14,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:14,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:10:14,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:14,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:14,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:14,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:14,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:14,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:10:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:14,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:14,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:14,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:10:14,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:14,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:10:14,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:14,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:10:14,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:14,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:10:14,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:14,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:10:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:14,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:14,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:14,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:10:14,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:14,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 11:10:14,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:14,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:10:14,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:14,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 11:10:14,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:14,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 11:10:14,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:14,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:14,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:14,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:14,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:10:14,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:10:14,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 11:10:14,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:14,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:10:14,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:10:14,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 11:10:14,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:14,454 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 83 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-12 11:10:14,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [418710460] [2020-10-12 11:10:14,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:10:14,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-12 11:10:14,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264037771] [2020-10-12 11:10:14,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-12 11:10:14,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:10:14,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-12 11:10:14,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2020-10-12 11:10:14,456 INFO L87 Difference]: Start difference. First operand 1110 states and 1377 transitions. Second operand 21 states. [2020-10-12 11:10:15,494 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-12 11:10:15,795 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 114 [2020-10-12 11:10:16,199 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2020-10-12 11:10:16,495 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2020-10-12 11:10:16,698 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-10-12 11:10:17,004 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2020-10-12 11:10:17,346 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2020-10-12 11:10:17,668 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2020-10-12 11:10:18,250 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2020-10-12 11:10:18,690 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2020-10-12 11:10:19,018 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 11:10:19,271 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 11:10:19,465 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-12 11:10:19,779 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-10-12 11:10:20,063 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 11:10:20,314 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 11:10:20,522 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 11:10:20,849 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-10-12 11:10:21,235 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2020-10-12 11:10:21,534 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-10-12 11:10:21,840 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 11:10:22,068 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 11:10:22,331 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2020-10-12 11:10:22,667 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 11:10:22,912 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 11:10:23,104 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-12 11:10:23,374 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-12 11:10:23,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:10:23,518 INFO L93 Difference]: Finished difference Result 2324 states and 2994 transitions. [2020-10-12 11:10:23,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-12 11:10:23,519 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 165 [2020-10-12 11:10:23,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:10:23,525 INFO L225 Difference]: With dead ends: 2324 [2020-10-12 11:10:23,525 INFO L226 Difference]: Without dead ends: 1280 [2020-10-12 11:10:23,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=890, Invalid=2080, Unknown=0, NotChecked=0, Total=2970 [2020-10-12 11:10:23,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1280 states. [2020-10-12 11:10:23,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1280 to 1185. [2020-10-12 11:10:23,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1185 states. [2020-10-12 11:10:23,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1473 transitions. [2020-10-12 11:10:23,572 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1473 transitions. Word has length 165 [2020-10-12 11:10:23,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:10:23,572 INFO L479 AbstractCegarLoop]: Abstraction has 1185 states and 1473 transitions. [2020-10-12 11:10:23,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-12 11:10:23,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1473 transitions. [2020-10-12 11:10:23,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-12 11:10:23,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:10:23,577 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:10:23,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 11:10:23,578 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:10:23,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:10:23,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1182762545, now seen corresponding path program 1 times [2020-10-12 11:10:23,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:10:23,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [466082757] [2020-10-12 11:10:23,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:10:23,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:23,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:23,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:23,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:23,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:24,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:25,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:25,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-12 11:10:25,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:10:25,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2203 [2020-10-12 11:10:25,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:25,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:10:25,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:10:25,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-12 11:10:25,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:25,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:10:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:25,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:25,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:25,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:10:25,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:10:25,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:10:25,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:25,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:10:25,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:10:25,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:10:25,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:25,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:10:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:25,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:25,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:25,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:25,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:10:25,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:10:25,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:10:25,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:25,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:10:25,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:10:25,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 11:10:25,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:25,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:10:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:25,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:25,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:26,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:26,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:10:26,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:10:26,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-12 11:10:26,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:26,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:10:26,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:10:26,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:10:26,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:26,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 11:10:26,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:10:26,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:26,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:10:26,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:10:26,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 11:10:26,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:10:26,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 11:10:26,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:10:26,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:10:26,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:10:26,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-12 11:10:26,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:10:26,172 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 87 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-10-12 11:10:26,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [466082757] [2020-10-12 11:10:26,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:10:26,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 11:10:26,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066935959] [2020-10-12 11:10:26,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:10:26,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:10:26,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:10:26,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:10:26,173 INFO L87 Difference]: Start difference. First operand 1185 states and 1473 transitions. Second operand 7 states. [2020-10-12 11:10:27,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:10:27,252 INFO L93 Difference]: Finished difference Result 1481 states and 1875 transitions. [2020-10-12 11:10:27,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 11:10:27,252 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 174 [2020-10-12 11:10:27,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:10:27,259 INFO L225 Difference]: With dead ends: 1481 [2020-10-12 11:10:27,259 INFO L226 Difference]: Without dead ends: 1479 [2020-10-12 11:10:27,260 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:10:27,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2020-10-12 11:10:27,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 1326. [2020-10-12 11:10:27,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1326 states. [2020-10-12 11:10:27,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1684 transitions. [2020-10-12 11:10:27,297 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1684 transitions. Word has length 174 [2020-10-12 11:10:27,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:10:27,298 INFO L479 AbstractCegarLoop]: Abstraction has 1326 states and 1684 transitions. [2020-10-12 11:10:27,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:10:27,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1684 transitions. [2020-10-12 11:10:27,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-12 11:10:27,303 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:10:27,303 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] [2020-10-12 11:10:27,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 11:10:27,304 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:10:27,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:10:27,304 INFO L82 PathProgramCache]: Analyzing trace with hash 162442639, now seen corresponding path program 1 times [2020-10-12 11:10:27,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:10:27,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1429872962] [2020-10-12 11:10:27,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:10:27,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 11:10:27,346 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 11:10:27,346 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 11:10:27,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 11:10:27,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:10:27 BoogieIcfgContainer [2020-10-12 11:10:27,386 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 11:10:27,387 INFO L168 Benchmark]: Toolchain (without parser) took 98839.16 ms. Allocated memory was 146.8 MB in the beginning and 1.0 GB in the end (delta: 897.6 MB). Free memory was 101.4 MB in the beginning and 671.2 MB in the end (delta: -569.8 MB). Peak memory consumption was 327.7 MB. Max. memory is 7.1 GB. [2020-10-12 11:10:27,387 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 11:10:27,388 INFO L168 Benchmark]: CACSL2BoogieTranslator took 794.74 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 101.2 MB in the beginning and 171.7 MB in the end (delta: -70.5 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. [2020-10-12 11:10:27,388 INFO L168 Benchmark]: Boogie Preprocessor took 114.00 ms. Allocated memory is still 205.5 MB. Free memory was 171.7 MB in the beginning and 166.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-10-12 11:10:27,389 INFO L168 Benchmark]: RCFGBuilder took 1226.07 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 166.8 MB in the beginning and 179.9 MB in the end (delta: -13.1 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. [2020-10-12 11:10:27,389 INFO L168 Benchmark]: TraceAbstraction took 96697.61 ms. Allocated memory was 239.1 MB in the beginning and 1.0 GB in the end (delta: 805.3 MB). Free memory was 179.9 MB in the beginning and 671.2 MB in the end (delta: -491.4 MB). Peak memory consumption was 313.9 MB. Max. memory is 7.1 GB. [2020-10-12 11:10:27,391 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 794.74 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 101.2 MB in the beginning and 171.7 MB in the end (delta: -70.5 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.00 ms. Allocated memory is still 205.5 MB. Free memory was 171.7 MB in the beginning and 166.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1226.07 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 166.8 MB in the beginning and 179.9 MB in the end (delta: -13.1 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 96697.61 ms. Allocated memory was 239.1 MB in the beginning and 1.0 GB in the end (delta: 805.3 MB). Free memory was 179.9 MB in the beginning and 671.2 MB in the end (delta: -491.4 MB). Peak memory consumption was 313.9 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: 96.5s, OverallIterations: 14, TraceHistogramMax: 4, AutomataDifference: 42.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 346 SDtfs, 6193 SDslu, 652 SDs, 0 SdLazy, 13262 SolverSat, 1389 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 391 GetRequests, 111 SyntacticMatches, 9 SemanticMatches, 271 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1566 ImplicationChecksByTransitivity, 34.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1326occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 465 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 51.7s InterpolantComputationTime, 1925 NumberOfCodeBlocks, 1925 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1706 ConstructedInterpolants, 0 QuantifiedInterpolants, 4454803 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 584/684 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...