/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:13:10,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:13:10,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:13:10,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:13:10,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:13:10,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:13:10,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:13:10,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:13:10,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:13:10,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:13:10,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:13:10,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:13:10,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:13:10,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:13:10,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:13:10,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:13:10,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:13:10,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:13:10,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:13:10,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:13:10,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:13:10,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:13:10,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:13:10,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:13:10,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:13:10,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:13:10,157 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:13:10,157 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:13:10,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:13:10,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:13:10,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:13:10,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:13:10,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:13:10,161 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:13:10,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:13:10,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:13:10,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:13:10,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:13:10,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:13:10,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:13:10,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:13:10,166 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 06:13:10,188 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:13:10,189 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:13:10,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:13:10,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:13:10,190 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:13:10,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:13:10,191 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:13:10,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:13:10,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:13:10,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:13:10,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:13:10,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:13:10,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:13:10,192 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:13:10,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:13:10,192 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:13:10,193 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:13:10,193 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:13:10,193 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:13:10,193 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:13:10,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:13:10,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:13:10,194 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:13:10,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:13:10,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:13:10,195 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:13:10,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:13:10,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:13:10,195 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:13:10,195 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 06:13:10,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:13:10,525 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:13:10,528 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:13:10,530 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:13:10,530 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:13:10,531 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label51.c [2020-10-13 06:13:10,592 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/058edaa17/d8c7b90c7a31402e97e8aaee5fdb0656/FLAG0a6c49c87 [2020-10-13 06:13:11,197 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:13:11,198 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label51.c [2020-10-13 06:13:11,212 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/058edaa17/d8c7b90c7a31402e97e8aaee5fdb0656/FLAG0a6c49c87 [2020-10-13 06:13:11,420 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/058edaa17/d8c7b90c7a31402e97e8aaee5fdb0656 [2020-10-13 06:13:11,429 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:13:11,431 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:13:11,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:13:11,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:13:11,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:13:11,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:13:11" (1/1) ... [2020-10-13 06:13:11,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@194bd3d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:13:11, skipping insertion in model container [2020-10-13 06:13:11,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:13:11" (1/1) ... [2020-10-13 06:13:11,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:13:11,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:13:11,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:13:11,951 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:13:12,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:13:12,159 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:13:12,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:13:12 WrapperNode [2020-10-13 06:13:12,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:13:12,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:13:12,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:13:12,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:13:12,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:13:12" (1/1) ... [2020-10-13 06:13:12,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:13:12" (1/1) ... [2020-10-13 06:13:12,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:13:12" (1/1) ... [2020-10-13 06:13:12,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:13:12" (1/1) ... [2020-10-13 06:13:12,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:13:12" (1/1) ... [2020-10-13 06:13:12,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:13:12" (1/1) ... [2020-10-13 06:13:12,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:13:12" (1/1) ... [2020-10-13 06:13:12,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:13:12,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:13:12,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:13:12,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:13:12,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:13:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:13:12,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:13:12,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:13:12,363 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:13:12,363 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:13:12,364 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:13:12,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:13:12,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:13:12,366 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:13:12,366 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:13:12,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:13:12,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:13:13,457 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:13:13,457 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:13:13,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:13:13 BoogieIcfgContainer [2020-10-13 06:13:13,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:13:13,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:13:13,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:13:13,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:13:13,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:13:11" (1/3) ... [2020-10-13 06:13:13,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b65b277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:13:13, skipping insertion in model container [2020-10-13 06:13:13,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:13:12" (2/3) ... [2020-10-13 06:13:13,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b65b277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:13:13, skipping insertion in model container [2020-10-13 06:13:13,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:13:13" (3/3) ... [2020-10-13 06:13:13,473 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label51.c [2020-10-13 06:13:13,484 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:13:13,492 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:13:13,507 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:13:13,534 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:13:13,534 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:13:13,535 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:13:13,535 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:13:13,535 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:13:13,535 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:13:13,535 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:13:13,536 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:13:13,560 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-10-13 06:13:13,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-13 06:13:13,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:13:13,574 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:13:13,575 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:13:13,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:13:13,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1960329542, now seen corresponding path program 1 times [2020-10-13 06:13:13,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:13:13,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [652704573] [2020-10-13 06:13:13,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:13:13,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:13,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:14,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:15,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:15,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-13 06:13:15,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:13:15,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1821 [2020-10-13 06:13:15,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:15,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 06:13:15,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:13:15,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:13:15,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 06:13:16,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:13:16,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:16,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:16,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:16,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:13:16,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:16,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 06:13:16,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:16,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:13:16,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:16,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:13:16,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:13:16,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:13:16,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [652704573] [2020-10-13 06:13:16,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:13:16,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 06:13:16,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416231970] [2020-10-13 06:13:16,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:13:16,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:13:16,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:13:16,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:13:16,560 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 12 states. [2020-10-13 06:13:16,871 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2020-10-13 06:13:17,041 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2020-10-13 06:13:17,245 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2020-10-13 06:13:17,424 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2020-10-13 06:13:17,615 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2020-10-13 06:13:18,026 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2020-10-13 06:13:18,362 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2020-10-13 06:13:19,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:13:19,232 INFO L93 Difference]: Finished difference Result 536 states and 892 transitions. [2020-10-13 06:13:19,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:13:19,236 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 116 [2020-10-13 06:13:19,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:13:19,250 INFO L225 Difference]: With dead ends: 536 [2020-10-13 06:13:19,250 INFO L226 Difference]: Without dead ends: 236 [2020-10-13 06:13:19,262 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:13:19,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-13 06:13:19,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-13 06:13:19,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-13 06:13:19,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 323 transitions. [2020-10-13 06:13:19,326 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 323 transitions. Word has length 116 [2020-10-13 06:13:19,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:13:19,327 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 323 transitions. [2020-10-13 06:13:19,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:13:19,327 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 323 transitions. [2020-10-13 06:13:19,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-13 06:13:19,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:13:19,331 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:13:19,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:13:19,332 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:13:19,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:13:19,333 INFO L82 PathProgramCache]: Analyzing trace with hash 539238327, now seen corresponding path program 1 times [2020-10-13 06:13:19,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:13:19,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2134080863] [2020-10-13 06:13:19,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:13:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:19,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:19,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:19,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:20,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:20,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-13 06:13:20,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:13:20,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1279 [2020-10-13 06:13:20,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:20,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:13:20,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 06:13:20,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:13:20,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:21,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:13:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:21,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:21,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:21,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:13:21,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:21,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:13:21,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:21,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:21,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:21,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:21,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:21,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:13:21,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:21,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:21,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:21,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:13:21,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:21,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:13:21,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:21,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:13:21,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:21,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 06:13:21,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:21,528 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:13:21,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2134080863] [2020-10-13 06:13:21,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:13:21,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:13:21,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184739203] [2020-10-13 06:13:21,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:13:21,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:13:21,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:13:21,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:13:21,533 INFO L87 Difference]: Start difference. First operand 233 states and 323 transitions. Second operand 12 states. [2020-10-13 06:13:22,042 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-13 06:13:23,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:13:23,773 INFO L93 Difference]: Finished difference Result 549 states and 794 transitions. [2020-10-13 06:13:23,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 06:13:23,774 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 125 [2020-10-13 06:13:23,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:13:23,777 INFO L225 Difference]: With dead ends: 549 [2020-10-13 06:13:23,777 INFO L226 Difference]: Without dead ends: 236 [2020-10-13 06:13:23,779 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:13:23,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-13 06:13:23,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-13 06:13:23,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-13 06:13:23,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 308 transitions. [2020-10-13 06:13:23,798 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 308 transitions. Word has length 125 [2020-10-13 06:13:23,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:13:23,798 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 308 transitions. [2020-10-13 06:13:23,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:13:23,799 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 308 transitions. [2020-10-13 06:13:23,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-13 06:13:23,801 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:13:23,801 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:13:23,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:13:23,802 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:13:23,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:13:23,802 INFO L82 PathProgramCache]: Analyzing trace with hash 572779055, now seen corresponding path program 1 times [2020-10-13 06:13:23,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:13:23,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1186462093] [2020-10-13 06:13:23,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:13:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:23,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:23,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:24,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:25,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:25,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-13 06:13:25,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:13:25,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1396 [2020-10-13 06:13:25,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:25,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:13:25,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 06:13:25,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:13:25,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:25,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:13:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:25,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:25,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:25,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:13:25,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:25,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:13:25,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:25,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:25,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:25,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:25,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:25,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:13:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:25,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:25,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:25,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:13:25,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:25,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:13:25,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:25,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:13:25,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:25,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:13:25,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:26,007 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:13:26,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1186462093] [2020-10-13 06:13:26,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:13:26,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:13:26,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771775575] [2020-10-13 06:13:26,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:13:26,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:13:26,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:13:26,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:13:26,010 INFO L87 Difference]: Start difference. First operand 233 states and 308 transitions. Second operand 12 states. [2020-10-13 06:13:27,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:13:27,672 INFO L93 Difference]: Finished difference Result 554 states and 772 transitions. [2020-10-13 06:13:27,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:13:27,672 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 129 [2020-10-13 06:13:27,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:13:27,676 INFO L225 Difference]: With dead ends: 554 [2020-10-13 06:13:27,676 INFO L226 Difference]: Without dead ends: 327 [2020-10-13 06:13:27,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-10-13 06:13:27,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-13 06:13:27,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 318. [2020-10-13 06:13:27,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-13 06:13:27,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 397 transitions. [2020-10-13 06:13:27,710 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 397 transitions. Word has length 129 [2020-10-13 06:13:27,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:13:27,711 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 397 transitions. [2020-10-13 06:13:27,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:13:27,711 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 397 transitions. [2020-10-13 06:13:27,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-13 06:13:27,714 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:13:27,715 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:13:27,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:13:27,715 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:13:27,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:13:27,715 INFO L82 PathProgramCache]: Analyzing trace with hash 8475783, now seen corresponding path program 1 times [2020-10-13 06:13:27,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:13:27,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [282055692] [2020-10-13 06:13:27,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:13:27,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:27,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:27,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:28,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:28,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-13 06:13:28,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:13:28,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 627 [2020-10-13 06:13:28,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:28,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:13:28,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-13 06:13:28,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-13 06:13:28,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:28,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:13:28,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:28,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:28,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:28,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:13:28,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:28,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:13:28,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:28,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:28,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:28,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:28,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:13:28,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:13:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:28,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:28,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:28,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:13:28,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:28,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:13:28,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:28,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:28,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:28,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:28,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:13:28,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 06:13:28,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:28,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:28,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:28,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 06:13:28,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:28,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 06:13:28,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:28,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:13:28,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:28,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 06:13:28,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:13:28,877 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:13:28,878 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [282055692] [2020-10-13 06:13:28,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:13:28,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:13:28,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746122966] [2020-10-13 06:13:28,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:13:28,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:13:28,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:13:28,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:13:28,882 INFO L87 Difference]: Start difference. First operand 318 states and 397 transitions. Second operand 5 states. [2020-10-13 06:13:30,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:13:30,007 INFO L93 Difference]: Finished difference Result 724 states and 951 transitions. [2020-10-13 06:13:30,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:13:30,007 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 151 [2020-10-13 06:13:30,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:13:30,011 INFO L225 Difference]: With dead ends: 724 [2020-10-13 06:13:30,012 INFO L226 Difference]: Without dead ends: 323 [2020-10-13 06:13:30,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:13:30,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-10-13 06:13:30,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 318. [2020-10-13 06:13:30,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-13 06:13:30,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 395 transitions. [2020-10-13 06:13:30,029 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 395 transitions. Word has length 151 [2020-10-13 06:13:30,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:13:30,030 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 395 transitions. [2020-10-13 06:13:30,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:13:30,030 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 395 transitions. [2020-10-13 06:13:30,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-13 06:13:30,033 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:13:30,034 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:13:30,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:13:30,034 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:13:30,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:13:30,035 INFO L82 PathProgramCache]: Analyzing trace with hash -90063930, now seen corresponding path program 1 times [2020-10-13 06:13:30,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:13:30,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [341568551] [2020-10-13 06:13:30,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:13:30,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:30,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:30,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:30,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:31,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:31,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 06:13:31,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:13:31,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1068 [2020-10-13 06:13:31,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:31,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:13:31,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-13 06:13:31,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:13:31,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:31,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:13:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:31,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:31,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:31,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:13:31,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:31,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:13:31,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:31,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:31,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:31,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:31,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:31,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:13:31,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:31,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:31,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:31,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:13:31,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:31,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 06:13:31,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:31,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:13:31,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:31,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:13:31,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:31,714 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:13:31,715 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [341568551] [2020-10-13 06:13:31,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:13:31,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:13:31,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561839072] [2020-10-13 06:13:31,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:13:31,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:13:31,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:13:31,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:13:31,717 INFO L87 Difference]: Start difference. First operand 318 states and 395 transitions. Second operand 12 states. [2020-10-13 06:13:33,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:13:33,810 INFO L93 Difference]: Finished difference Result 723 states and 948 transitions. [2020-10-13 06:13:33,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 06:13:33,811 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 150 [2020-10-13 06:13:33,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:13:33,814 INFO L225 Difference]: With dead ends: 723 [2020-10-13 06:13:33,815 INFO L226 Difference]: Without dead ends: 401 [2020-10-13 06:13:33,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2020-10-13 06:13:33,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-13 06:13:33,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 394. [2020-10-13 06:13:33,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-13 06:13:33,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 475 transitions. [2020-10-13 06:13:33,839 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 475 transitions. Word has length 150 [2020-10-13 06:13:33,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:13:33,839 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 475 transitions. [2020-10-13 06:13:33,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:13:33,840 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 475 transitions. [2020-10-13 06:13:33,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-13 06:13:33,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:13:33,843 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:13:33,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:13:33,843 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:13:33,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:13:33,844 INFO L82 PathProgramCache]: Analyzing trace with hash 815995233, now seen corresponding path program 1 times [2020-10-13 06:13:33,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:13:33,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217375486] [2020-10-13 06:13:33,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:13:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:33,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:33,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:34,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:34,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:35,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:35,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-13 06:13:35,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:13:35,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1919 [2020-10-13 06:13:35,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:35,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:13:35,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-13 06:13:35,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 06:13:35,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:36,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:13:36,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:36,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:36,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:36,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:13:36,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:36,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:13:36,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:36,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:36,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:36,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:36,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:13:36,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:13:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:36,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:36,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:36,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:13:36,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:36,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:13:36,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:36,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:36,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:36,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:36,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:13:36,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 06:13:36,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:36,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:36,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:36,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:13:36,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:36,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:13:36,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:36,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:13:36,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:36,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:13:36,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:13:36,327 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 06:13:36,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1217375486] [2020-10-13 06:13:36,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:13:36,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:13:36,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203131696] [2020-10-13 06:13:36,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:13:36,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:13:36,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:13:36,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:13:36,330 INFO L87 Difference]: Start difference. First operand 394 states and 475 transitions. Second operand 5 states. [2020-10-13 06:13:37,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:13:37,396 INFO L93 Difference]: Finished difference Result 874 states and 1106 transitions. [2020-10-13 06:13:37,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:13:37,397 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 158 [2020-10-13 06:13:37,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:13:37,402 INFO L225 Difference]: With dead ends: 874 [2020-10-13 06:13:37,402 INFO L226 Difference]: Without dead ends: 399 [2020-10-13 06:13:37,404 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:13:37,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-10-13 06:13:37,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 394. [2020-10-13 06:13:37,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-13 06:13:37,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 472 transitions. [2020-10-13 06:13:37,428 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 472 transitions. Word has length 158 [2020-10-13 06:13:37,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:13:37,429 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 472 transitions. [2020-10-13 06:13:37,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:13:37,429 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 472 transitions. [2020-10-13 06:13:37,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-13 06:13:37,431 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:13:37,432 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:13:37,432 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:13:37,432 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:13:37,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:13:37,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1942149092, now seen corresponding path program 1 times [2020-10-13 06:13:37,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:13:37,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [722417535] [2020-10-13 06:13:37,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:13:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:37,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:37,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:37,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:39,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:39,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-13 06:13:39,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:13:39,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1590 [2020-10-13 06:13:39,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:39,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:13:39,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-13 06:13:39,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:13:39,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:13:39,544 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2020-10-13 06:13:39,695 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 47 [2020-10-13 06:13:39,885 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 48 [2020-10-13 06:13:40,067 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 44 [2020-10-13 06:13:40,237 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 40 [2020-10-13 06:13:40,399 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 34 [2020-10-13 06:13:40,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:13:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:40,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:40,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:40,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:13:40,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:40,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:13:40,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:40,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:40,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:40,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:40,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:40,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:13:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:40,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:40,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:40,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:13:40,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:40,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 06:13:40,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:40,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:13:40,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:40,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:13:40,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:40,817 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 47 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:13:40,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [722417535] [2020-10-13 06:13:40,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:13:40,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:13:40,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306460935] [2020-10-13 06:13:40,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:13:40,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:13:40,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:13:40,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:13:40,820 INFO L87 Difference]: Start difference. First operand 394 states and 472 transitions. Second operand 12 states. [2020-10-13 06:13:41,174 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-13 06:13:41,311 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 06:13:41,889 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2020-10-13 06:13:42,153 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2020-10-13 06:13:42,391 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-13 06:13:42,829 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2020-10-13 06:13:43,518 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-10-13 06:13:43,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:13:43,864 INFO L93 Difference]: Finished difference Result 886 states and 1110 transitions. [2020-10-13 06:13:43,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 06:13:43,865 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 167 [2020-10-13 06:13:43,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:13:43,869 INFO L225 Difference]: With dead ends: 886 [2020-10-13 06:13:43,869 INFO L226 Difference]: Without dead ends: 498 [2020-10-13 06:13:43,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=155, Invalid=307, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:13:43,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2020-10-13 06:13:43,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 477. [2020-10-13 06:13:43,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2020-10-13 06:13:43,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 561 transitions. [2020-10-13 06:13:43,902 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 561 transitions. Word has length 167 [2020-10-13 06:13:43,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:13:43,902 INFO L479 AbstractCegarLoop]: Abstraction has 477 states and 561 transitions. [2020-10-13 06:13:43,903 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:13:43,903 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 561 transitions. [2020-10-13 06:13:43,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-13 06:13:43,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:13:43,906 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:13:43,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:13:43,906 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:13:43,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:13:43,906 INFO L82 PathProgramCache]: Analyzing trace with hash -413304400, now seen corresponding path program 1 times [2020-10-13 06:13:43,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:13:43,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [356733773] [2020-10-13 06:13:43,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:13:43,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:43,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:44,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:44,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:45,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:45,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 06:13:45,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:13:45,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1256 [2020-10-13 06:13:45,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:45,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:13:45,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-13 06:13:45,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:13:45,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:45,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:13:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:45,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:45,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:45,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:13:45,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:45,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:13:45,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:45,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:45,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:45,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:45,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:13:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:45,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:45,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:45,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:13:45,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:45,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 06:13:45,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:45,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:13:45,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:45,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-13 06:13:45,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:45,883 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:13:45,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [356733773] [2020-10-13 06:13:45,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:13:45,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:13:45,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892299714] [2020-10-13 06:13:45,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:13:45,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:13:45,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:13:45,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:13:45,886 INFO L87 Difference]: Start difference. First operand 477 states and 561 transitions. Second operand 12 states. [2020-10-13 06:13:47,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:13:47,698 INFO L93 Difference]: Finished difference Result 1040 states and 1272 transitions. [2020-10-13 06:13:47,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:13:47,699 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 173 [2020-10-13 06:13:47,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:13:47,703 INFO L225 Difference]: With dead ends: 1040 [2020-10-13 06:13:47,703 INFO L226 Difference]: Without dead ends: 569 [2020-10-13 06:13:47,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=128, Invalid=252, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:13:47,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2020-10-13 06:13:47,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 556. [2020-10-13 06:13:47,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-10-13 06:13:47,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 645 transitions. [2020-10-13 06:13:47,723 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 645 transitions. Word has length 173 [2020-10-13 06:13:47,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:13:47,724 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 645 transitions. [2020-10-13 06:13:47,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:13:47,724 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 645 transitions. [2020-10-13 06:13:47,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-10-13 06:13:47,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:13:47,728 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 06:13:47,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:13:47,728 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:13:47,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:13:47,728 INFO L82 PathProgramCache]: Analyzing trace with hash 334787322, now seen corresponding path program 1 times [2020-10-13 06:13:47,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:13:47,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [251926660] [2020-10-13 06:13:47,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:13:47,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:47,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:47,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:47,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:48,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:49,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:49,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-10-13 06:13:49,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:13:49,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1396 [2020-10-13 06:13:49,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:49,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:13:49,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-13 06:13:49,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 06:13:49,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:13:49,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:13:49,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:49,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:49,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:49,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:13:49,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:49,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:13:49,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:49,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:49,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:49,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:49,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:49,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:13:49,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:49,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:49,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:49,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:13:49,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:49,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:13:49,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:49,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:49,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:49,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:49,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:49,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 06:13:49,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:49,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:49,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:49,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 06:13:49,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:49,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 06:13:49,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:49,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:13:49,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:49,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 06:13:49,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:49,509 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:13:49,509 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [251926660] [2020-10-13 06:13:49,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:13:49,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:13:49,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176285072] [2020-10-13 06:13:49,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:13:49,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:13:49,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:13:49,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:13:49,511 INFO L87 Difference]: Start difference. First operand 556 states and 645 transitions. Second operand 5 states. [2020-10-13 06:13:50,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:13:50,560 INFO L93 Difference]: Finished difference Result 1203 states and 1454 transitions. [2020-10-13 06:13:50,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:13:50,561 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 198 [2020-10-13 06:13:50,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:13:50,563 INFO L225 Difference]: With dead ends: 1203 [2020-10-13 06:13:50,564 INFO L226 Difference]: Without dead ends: 464 [2020-10-13 06:13:50,566 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:13:50,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-10-13 06:13:50,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 457. [2020-10-13 06:13:50,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2020-10-13 06:13:50,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 533 transitions. [2020-10-13 06:13:50,582 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 533 transitions. Word has length 198 [2020-10-13 06:13:50,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:13:50,583 INFO L479 AbstractCegarLoop]: Abstraction has 457 states and 533 transitions. [2020-10-13 06:13:50,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:13:50,583 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 533 transitions. [2020-10-13 06:13:50,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-13 06:13:50,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:13:50,586 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 06:13:50,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:13:50,587 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:13:50,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:13:50,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1602093460, now seen corresponding path program 1 times [2020-10-13 06:13:50,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:13:50,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [549695718] [2020-10-13 06:13:50,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:13:50,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:50,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:50,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:50,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:51,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:53,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:53,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-10-13 06:13:53,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:13:53,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2529 [2020-10-13 06:13:53,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:53,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:13:53,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-13 06:13:53,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 06:13:53,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:53,539 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2020-10-13 06:13:53,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:13:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:53,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:53,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:53,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:13:53,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:53,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:13:53,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:53,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:53,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:53,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:53,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:53,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:13:53,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:53,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:53,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:53,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:13:53,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:53,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:13:53,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:53,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:53,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:53,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:53,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:53,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 06:13:53,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:53,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:54,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:54,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:13:54,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:54,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 06:13:54,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:54,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:13:54,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:54,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:13:54,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:54,211 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 88 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 06:13:54,211 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [549695718] [2020-10-13 06:13:54,211 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:13:54,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:13:54,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607905832] [2020-10-13 06:13:54,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:13:54,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:13:54,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:13:54,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:13:54,213 INFO L87 Difference]: Start difference. First operand 457 states and 533 transitions. Second operand 13 states. [2020-10-13 06:13:54,799 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2020-10-13 06:13:55,031 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-10-13 06:13:55,345 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-10-13 06:13:55,618 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-10-13 06:13:56,086 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-13 06:13:56,314 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-10-13 06:13:56,771 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 06:13:57,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:13:57,918 INFO L93 Difference]: Finished difference Result 1078 states and 1346 transitions. [2020-10-13 06:13:57,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 06:13:57,919 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 209 [2020-10-13 06:13:57,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:13:57,923 INFO L225 Difference]: With dead ends: 1078 [2020-10-13 06:13:57,923 INFO L226 Difference]: Without dead ends: 627 [2020-10-13 06:13:57,925 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=260, Invalid=610, Unknown=0, NotChecked=0, Total=870 [2020-10-13 06:13:57,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2020-10-13 06:13:57,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 534. [2020-10-13 06:13:57,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2020-10-13 06:13:57,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 612 transitions. [2020-10-13 06:13:57,943 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 612 transitions. Word has length 209 [2020-10-13 06:13:57,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:13:57,944 INFO L479 AbstractCegarLoop]: Abstraction has 534 states and 612 transitions. [2020-10-13 06:13:57,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:13:57,944 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 612 transitions. [2020-10-13 06:13:57,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-10-13 06:13:57,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:13:57,948 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 06:13:57,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:13:57,948 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:13:57,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:13:57,949 INFO L82 PathProgramCache]: Analyzing trace with hash -564863394, now seen corresponding path program 1 times [2020-10-13 06:13:57,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:13:57,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [314298648] [2020-10-13 06:13:57,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:13:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:58,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:58,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:58,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:58,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-10-13 06:13:58,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:13:58,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 701 [2020-10-13 06:13:58,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:58,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:13:58,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 118 [2020-10-13 06:13:58,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-13 06:13:58,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:58,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:13:58,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:58,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:58,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:58,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:13:58,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:58,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:13:58,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:58,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:58,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:58,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:58,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:13:58,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:13:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:58,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:58,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:58,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:13:58,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:58,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:13:58,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:58,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:13:58,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:58,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:13:58,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:13:58,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 06:13:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:13:58,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:13:58,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:13:58,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 06:13:58,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:13:58,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-13 06:13:58,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:13:58,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:13:58,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:13:58,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 06:13:58,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:13:59,093 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-13 06:13:59,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [314298648] [2020-10-13 06:13:59,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:13:59,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:13:59,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093397372] [2020-10-13 06:13:59,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:13:59,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:13:59,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:13:59,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:13:59,096 INFO L87 Difference]: Start difference. First operand 534 states and 612 transitions. Second operand 5 states. [2020-10-13 06:14:00,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:14:00,108 INFO L93 Difference]: Finished difference Result 1157 states and 1377 transitions. [2020-10-13 06:14:00,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:14:00,114 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 222 [2020-10-13 06:14:00,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:14:00,117 INFO L225 Difference]: With dead ends: 1157 [2020-10-13 06:14:00,118 INFO L226 Difference]: Without dead ends: 465 [2020-10-13 06:14:00,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:14:00,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-10-13 06:14:00,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 458. [2020-10-13 06:14:00,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2020-10-13 06:14:00,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 530 transitions. [2020-10-13 06:14:00,140 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 530 transitions. Word has length 222 [2020-10-13 06:14:00,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:14:00,140 INFO L479 AbstractCegarLoop]: Abstraction has 458 states and 530 transitions. [2020-10-13 06:14:00,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:14:00,140 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 530 transitions. [2020-10-13 06:14:00,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-10-13 06:14:00,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:14:00,144 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:14:00,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:14:00,145 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:14:00,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:14:00,145 INFO L82 PathProgramCache]: Analyzing trace with hash 332738545, now seen corresponding path program 1 times [2020-10-13 06:14:00,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:14:00,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [894358522] [2020-10-13 06:14:00,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:14:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:00,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:00,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:00,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:00,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:00,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:01,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:01,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:01,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:02,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:03,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:03,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-10-13 06:14:03,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 06:14:03,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3439 [2020-10-13 06:14:03,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:03,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:14:03,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-13 06:14:03,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:14:03,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:03,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:14:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:03,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:03,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:03,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:14:03,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:03,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:14:03,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:03,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:14:03,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:03,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:14:03,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:03,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:14:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:03,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:03,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:03,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:14:03,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:03,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:14:03,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:03,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:14:03,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:03,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:14:03,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:03,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 06:14:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:03,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:03,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:03,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:14:03,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:03,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:14:03,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:03,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:14:03,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:03,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:14:03,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:03,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 06:14:03,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:03,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:03,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:03,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:14:03,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:03,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:14:03,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:03,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 06:14:03,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:03,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 06:14:03,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:04,123 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 105 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-13 06:14:04,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [894358522] [2020-10-13 06:14:04,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:14:04,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:14:04,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019745367] [2020-10-13 06:14:04,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:14:04,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:14:04,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:14:04,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:14:04,126 INFO L87 Difference]: Start difference. First operand 458 states and 530 transitions. Second operand 13 states. [2020-10-13 06:14:07,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:14:07,079 INFO L93 Difference]: Finished difference Result 1152 states and 1419 transitions. [2020-10-13 06:14:07,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 06:14:07,080 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 229 [2020-10-13 06:14:07,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:14:07,084 INFO L225 Difference]: With dead ends: 1152 [2020-10-13 06:14:07,084 INFO L226 Difference]: Without dead ends: 464 [2020-10-13 06:14:07,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=303, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:14:07,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-10-13 06:14:07,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 461. [2020-10-13 06:14:07,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-10-13 06:14:07,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 536 transitions. [2020-10-13 06:14:07,100 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 536 transitions. Word has length 229 [2020-10-13 06:14:07,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:14:07,100 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 536 transitions. [2020-10-13 06:14:07,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:14:07,100 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 536 transitions. [2020-10-13 06:14:07,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-10-13 06:14:07,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:14:07,104 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:14:07,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:14:07,104 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:14:07,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:14:07,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1466172330, now seen corresponding path program 1 times [2020-10-13 06:14:07,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:14:07,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [337872551] [2020-10-13 06:14:07,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:14:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:07,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:07,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:07,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:08,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:10,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:10,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-10-13 06:14:10,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:14:10,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3267 [2020-10-13 06:14:10,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:10,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:14:10,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-13 06:14:10,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 06:14:10,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:10,765 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 38 [2020-10-13 06:14:10,932 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 36 [2020-10-13 06:14:11,082 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 32 [2020-10-13 06:14:11,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:14:11,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:11,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:11,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:11,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:14:11,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:11,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:14:11,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:11,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:14:11,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:11,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:14:11,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:11,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:14:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:11,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:11,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:11,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:14:11,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:11,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:14:11,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:11,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:14:11,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:11,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:14:11,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:11,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:14:11,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:11,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:11,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:11,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:14:11,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:11,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 06:14:11,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:11,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:14:11,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:11,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:14:11,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:11,624 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-13 06:14:11,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [337872551] [2020-10-13 06:14:11,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:14:11,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:14:11,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344199250] [2020-10-13 06:14:11,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:14:11,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:14:11,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:14:11,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:14:11,627 INFO L87 Difference]: Start difference. First operand 461 states and 536 transitions. Second operand 12 states. [2020-10-13 06:14:12,256 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-13 06:14:12,526 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 98 [2020-10-13 06:14:12,768 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 95 [2020-10-13 06:14:13,026 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2020-10-13 06:14:13,244 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 86 [2020-10-13 06:14:13,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:14:13,696 INFO L93 Difference]: Finished difference Result 985 states and 1172 transitions. [2020-10-13 06:14:13,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 06:14:13,697 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 244 [2020-10-13 06:14:13,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:14:13,701 INFO L225 Difference]: With dead ends: 985 [2020-10-13 06:14:13,701 INFO L226 Difference]: Without dead ends: 530 [2020-10-13 06:14:13,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-10-13 06:14:13,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-10-13 06:14:13,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 496. [2020-10-13 06:14:13,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-10-13 06:14:13,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 577 transitions. [2020-10-13 06:14:13,718 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 577 transitions. Word has length 244 [2020-10-13 06:14:13,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:14:13,718 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 577 transitions. [2020-10-13 06:14:13,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:14:13,718 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 577 transitions. [2020-10-13 06:14:13,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-10-13 06:14:13,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:14:13,721 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:14:13,721 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:14:13,721 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:14:13,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:14:13,721 INFO L82 PathProgramCache]: Analyzing trace with hash -540772443, now seen corresponding path program 1 times [2020-10-13 06:14:13,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:14:13,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [769238126] [2020-10-13 06:14:13,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:14:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:13,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:14,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:14,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:14,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-10-13 06:14:14,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:14:14,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 512 [2020-10-13 06:14:14,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:14,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:14:14,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 156 [2020-10-13 06:14:14,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:14:14,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:14,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:14:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:14,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:14,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:14,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:14:14,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:14,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:14:14,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:14,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:14:14,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:14,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:14:14,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:14,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:14:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:14,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:14,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:14,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:14:14,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:14,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:14:14,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:14,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:14:14,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:14,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:14:14,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:14,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:14:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:14,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:14,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:14,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:14:14,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:14,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:14:14,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:14,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:14:14,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:14,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:14:14,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:14,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:14:14,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:14,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:14,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:14,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 06:14:14,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:14,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:14:14,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:14,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:14:14,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:14,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 06:14:14,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:14:14,670 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 136 proven. 3 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-13 06:14:14,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [769238126] [2020-10-13 06:14:14,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:14:14,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:14:14,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099775625] [2020-10-13 06:14:14,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:14:14,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:14:14,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:14:14,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:14:14,674 INFO L87 Difference]: Start difference. First operand 496 states and 577 transitions. Second operand 5 states. [2020-10-13 06:14:15,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:14:15,603 INFO L93 Difference]: Finished difference Result 1072 states and 1287 transitions. [2020-10-13 06:14:15,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:14:15,604 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 258 [2020-10-13 06:14:15,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:14:15,607 INFO L225 Difference]: With dead ends: 1072 [2020-10-13 06:14:15,607 INFO L226 Difference]: Without dead ends: 499 [2020-10-13 06:14:15,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:14:15,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-10-13 06:14:15,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 496. [2020-10-13 06:14:15,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-10-13 06:14:15,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 572 transitions. [2020-10-13 06:14:15,623 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 572 transitions. Word has length 258 [2020-10-13 06:14:15,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:14:15,624 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 572 transitions. [2020-10-13 06:14:15,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:14:15,624 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 572 transitions. [2020-10-13 06:14:15,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-10-13 06:14:15,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:14:15,626 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:14:15,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:14:15,627 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:14:15,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:14:15,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1863685167, now seen corresponding path program 1 times [2020-10-13 06:14:15,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:14:15,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [258998578] [2020-10-13 06:14:15,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:14:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:15,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:15,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:15,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:15,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:15,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:16,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:16,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:17,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:17,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:19,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:19,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 279 [2020-10-13 06:14:19,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 06:14:19,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3884 [2020-10-13 06:14:19,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:19,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:14:19,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-10-13 06:14:19,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:14:19,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:20,022 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 40 [2020-10-13 06:14:20,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:14:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:20,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:20,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:20,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:14:20,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:20,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:14:20,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:20,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:14:20,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:20,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:14:20,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:20,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:14:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:20,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:20,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:20,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:14:20,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:20,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:14:20,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:20,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:14:20,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:20,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:14:20,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:20,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:14:20,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:20,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:20,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:20,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:14:20,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:20,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:14:20,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:20,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:14:20,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:20,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:14:20,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:20,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:14:20,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:20,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:20,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:20,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 06:14:20,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:20,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:14:20,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:20,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 06:14:20,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:20,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:14:20,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:20,664 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 141 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:14:20,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [258998578] [2020-10-13 06:14:20,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:14:20,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:14:20,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043619492] [2020-10-13 06:14:20,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:14:20,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:14:20,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:14:20,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:14:20,666 INFO L87 Difference]: Start difference. First operand 496 states and 572 transitions. Second operand 13 states. [2020-10-13 06:14:21,706 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-13 06:14:21,936 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2020-10-13 06:14:22,344 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2020-10-13 06:14:22,750 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 77 [2020-10-13 06:14:23,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:14:23,670 INFO L93 Difference]: Finished difference Result 1367 states and 1647 transitions. [2020-10-13 06:14:23,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:14:23,674 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 265 [2020-10-13 06:14:23,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:14:23,682 INFO L225 Difference]: With dead ends: 1367 [2020-10-13 06:14:23,682 INFO L226 Difference]: Without dead ends: 877 [2020-10-13 06:14:23,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:14:23,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2020-10-13 06:14:23,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 869. [2020-10-13 06:14:23,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2020-10-13 06:14:23,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 990 transitions. [2020-10-13 06:14:23,718 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 990 transitions. Word has length 265 [2020-10-13 06:14:23,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:14:23,719 INFO L479 AbstractCegarLoop]: Abstraction has 869 states and 990 transitions. [2020-10-13 06:14:23,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:14:23,719 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 990 transitions. [2020-10-13 06:14:23,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-10-13 06:14:23,722 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:14:23,722 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:14:23,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:14:23,723 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:14:23,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:14:23,723 INFO L82 PathProgramCache]: Analyzing trace with hash 764503526, now seen corresponding path program 1 times [2020-10-13 06:14:23,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:14:23,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1007150636] [2020-10-13 06:14:23,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:14:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:23,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:23,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:24,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:24,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 284 [2020-10-13 06:14:24,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:14:24,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-10-13 06:14:24,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:24,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:14:24,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-13 06:14:24,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:14:24,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:24,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:14:24,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:24,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:24,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:24,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:14:24,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:24,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:14:24,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:24,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:14:24,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:24,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:14:24,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:24,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:14:24,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:24,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:24,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:24,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:14:24,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:24,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:14:24,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:24,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:14:24,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:24,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:14:24,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:24,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:14:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:24,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:24,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:24,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:14:24,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:24,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:14:24,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:24,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:14:24,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:24,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:14:24,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:24,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:14:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:24,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:24,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:24,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 06:14:24,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:24,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:14:24,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:24,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:14:24,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:24,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 06:14:24,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:24,456 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 148 proven. 3 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-10-13 06:14:24,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1007150636] [2020-10-13 06:14:24,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:14:24,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:14:24,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747103720] [2020-10-13 06:14:24,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:14:24,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:14:24,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:14:24,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:14:24,458 INFO L87 Difference]: Start difference. First operand 869 states and 990 transitions. Second operand 5 states. [2020-10-13 06:14:25,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:14:25,386 INFO L93 Difference]: Finished difference Result 1823 states and 2123 transitions. [2020-10-13 06:14:25,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:14:25,388 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 270 [2020-10-13 06:14:25,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:14:25,392 INFO L225 Difference]: With dead ends: 1823 [2020-10-13 06:14:25,392 INFO L226 Difference]: Without dead ends: 874 [2020-10-13 06:14:25,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:14:25,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2020-10-13 06:14:25,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 869. [2020-10-13 06:14:25,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2020-10-13 06:14:25,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 975 transitions. [2020-10-13 06:14:25,417 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 975 transitions. Word has length 270 [2020-10-13 06:14:25,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:14:25,418 INFO L479 AbstractCegarLoop]: Abstraction has 869 states and 975 transitions. [2020-10-13 06:14:25,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:14:25,418 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 975 transitions. [2020-10-13 06:14:25,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2020-10-13 06:14:25,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:14:25,421 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:14:25,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:14:25,422 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:14:25,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:14:25,422 INFO L82 PathProgramCache]: Analyzing trace with hash 2104017460, now seen corresponding path program 1 times [2020-10-13 06:14:25,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:14:25,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [873311427] [2020-10-13 06:14:25,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:14:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:25,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:25,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:25,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:25,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 289 [2020-10-13 06:14:25,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:14:25,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-10-13 06:14:25,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:25,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:14:25,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-13 06:14:25,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 06:14:25,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:25,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:14:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:25,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:26,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:26,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:14:26,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:26,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:14:26,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:26,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:14:26,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:26,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:14:26,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:26,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:14:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:26,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:26,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:26,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:14:26,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:26,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:14:26,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:26,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:14:26,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:26,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:14:26,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:26,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:14:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:26,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:26,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:26,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:14:26,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:26,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 06:14:26,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:26,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:14:26,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:26,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:14:26,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:26,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:14:26,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:26,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:26,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:26,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 06:14:26,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:26,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 06:14:26,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:26,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:14:26,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:26,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 06:14:26,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:26,339 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 153 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-10-13 06:14:26,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [873311427] [2020-10-13 06:14:26,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:14:26,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:14:26,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95115086] [2020-10-13 06:14:26,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:14:26,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:14:26,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:14:26,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:14:26,342 INFO L87 Difference]: Start difference. First operand 869 states and 975 transitions. Second operand 5 states. [2020-10-13 06:14:27,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:14:27,247 INFO L93 Difference]: Finished difference Result 1821 states and 2085 transitions. [2020-10-13 06:14:27,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:14:27,249 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 275 [2020-10-13 06:14:27,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:14:27,252 INFO L225 Difference]: With dead ends: 1821 [2020-10-13 06:14:27,252 INFO L226 Difference]: Without dead ends: 874 [2020-10-13 06:14:27,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:14:27,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2020-10-13 06:14:27,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 869. [2020-10-13 06:14:27,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2020-10-13 06:14:27,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 962 transitions. [2020-10-13 06:14:27,276 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 962 transitions. Word has length 275 [2020-10-13 06:14:27,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:14:27,276 INFO L479 AbstractCegarLoop]: Abstraction has 869 states and 962 transitions. [2020-10-13 06:14:27,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:14:27,276 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 962 transitions. [2020-10-13 06:14:27,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-10-13 06:14:27,280 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:14:27,280 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-13 06:14:27,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:14:27,280 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:14:27,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:14:27,281 INFO L82 PathProgramCache]: Analyzing trace with hash 2115411627, now seen corresponding path program 1 times [2020-10-13 06:14:27,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:14:27,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102547717] [2020-10-13 06:14:27,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:14:27,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:27,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:27,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:27,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:27,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 346 [2020-10-13 06:14:27,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:14:27,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 633 [2020-10-13 06:14:27,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:27,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:14:27,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-10-13 06:14:27,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:14:27,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:28,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:14:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:28,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:28,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:28,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:14:28,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:28,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:14:28,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:28,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:14:28,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:28,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:14:28,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:28,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:14:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:28,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:28,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:28,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:14:28,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:28,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:14:28,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:28,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:14:28,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:28,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:14:28,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:28,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:14:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:28,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:28,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:28,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:14:28,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:28,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:14:28,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:28,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:14:28,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:28,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:14:28,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:28,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:14:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:28,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:28,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:28,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 06:14:28,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:28,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:14:28,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:28,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:14:28,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:14:28,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 06:14:28,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:28,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-13 06:14:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:14:28,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:14:28,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:14:28,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 06:14:28,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:14:28,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 06:14:28,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:14:28,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:14:28,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:14:28,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:14:28,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:14:28,261 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 336 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-13 06:14:28,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102547717] [2020-10-13 06:14:28,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:14:28,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:14:28,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280413083] [2020-10-13 06:14:28,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:14:28,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:14:28,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:14:28,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:14:28,263 INFO L87 Difference]: Start difference. First operand 869 states and 962 transitions. Second operand 7 states. [2020-10-13 06:14:28,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:14:28,962 INFO L93 Difference]: Finished difference Result 1262 states and 1376 transitions. [2020-10-13 06:14:28,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 06:14:28,963 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 330 [2020-10-13 06:14:28,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:14:28,964 INFO L225 Difference]: With dead ends: 1262 [2020-10-13 06:14:28,964 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:14:28,968 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:14:28,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:14:28,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:14:28,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:14:28,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:14:28,968 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 330 [2020-10-13 06:14:28,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:14:28,969 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:14:28,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:14:28,969 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:14:28,969 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:14:28,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:14:28,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:14:30,443 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 200 DAG size of output: 165 [2020-10-13 06:14:31,085 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 168 [2020-10-13 06:14:33,417 WARN L193 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 258 DAG size of output: 186 [2020-10-13 06:14:33,937 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 81 [2020-10-13 06:14:34,607 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 108 [2020-10-13 06:14:34,611 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:14:34,612 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-10-13 06:14:34,612 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:14:34,612 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,612 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,612 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,612 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,612 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,613 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-10-13 06:14:34,613 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-10-13 06:14:34,613 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-13 06:14:34,613 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-13 06:14:34,613 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-13 06:14:34,613 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-13 06:14:34,614 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-13 06:14:34,614 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-10-13 06:14:34,614 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-10-13 06:14:34,614 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-10-13 06:14:34,614 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-10-13 06:14:34,614 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-10-13 06:14:34,615 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-10-13 06:14:34,615 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,615 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,615 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,615 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,615 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-10-13 06:14:34,615 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,616 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-10-13 06:14:34,616 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-13 06:14:34,616 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-13 06:14:34,616 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-13 06:14:34,616 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-13 06:14:34,616 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-13 06:14:34,616 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-10-13 06:14:34,616 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-10-13 06:14:34,616 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-10-13 06:14:34,616 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-10-13 06:14:34,616 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-10-13 06:14:34,617 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-10-13 06:14:34,617 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-10-13 06:14:34,617 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-10-13 06:14:34,617 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-10-13 06:14:34,617 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,617 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,617 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,617 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,617 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,618 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 502) no Hoare annotation was computed. [2020-10-13 06:14:34,618 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-10-13 06:14:34,618 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-10-13 06:14:34,618 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-10-13 06:14:34,618 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-13 06:14:34,618 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-13 06:14:34,618 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-13 06:14:34,618 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-13 06:14:34,618 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-13 06:14:34,619 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-10-13 06:14:34,619 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-10-13 06:14:34,619 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-10-13 06:14:34,619 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,619 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,619 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,619 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,619 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,619 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-10-13 06:14:34,620 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-10-13 06:14:34,620 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-10-13 06:14:34,620 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-13 06:14:34,620 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-13 06:14:34,620 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-13 06:14:34,620 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-13 06:14:34,620 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-13 06:14:34,620 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-10-13 06:14:34,620 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-10-13 06:14:34,620 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-10-13 06:14:34,620 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-10-13 06:14:34,620 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-10-13 06:14:34,621 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,621 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,621 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,621 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,621 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,621 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-10-13 06:14:34,621 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-10-13 06:14:34,621 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-13 06:14:34,621 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-13 06:14:34,622 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-13 06:14:34,622 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-13 06:14:34,622 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-10-13 06:14:34,622 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-10-13 06:14:34,622 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-10-13 06:14:34,622 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-10-13 06:14:34,622 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-10-13 06:14:34,622 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-10-13 06:14:34,622 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-10-13 06:14:34,622 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-10-13 06:14:34,622 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-10-13 06:14:34,622 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-10-13 06:14:34,622 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,622 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,622 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,623 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,623 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-10-13 06:14:34,623 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,623 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-10-13 06:14:34,623 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,623 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-10-13 06:14:34,623 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-10-13 06:14:34,623 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-10-13 06:14:34,623 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,623 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,623 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-10-13 06:14:34,623 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-13 06:14:34,623 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-13 06:14:34,623 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-13 06:14:34,623 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-13 06:14:34,623 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-13 06:14:34,624 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-10-13 06:14:34,624 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-10-13 06:14:34,624 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-10-13 06:14:34,624 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-10-13 06:14:34,624 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-10-13 06:14:34,624 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,624 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,624 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,624 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,624 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,624 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,624 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-10-13 06:14:34,624 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-10-13 06:14:34,624 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-13 06:14:34,624 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-13 06:14:34,625 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-13 06:14:34,625 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-13 06:14:34,625 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-13 06:14:34,625 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-10-13 06:14:34,625 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-10-13 06:14:34,625 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-10-13 06:14:34,625 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-10-13 06:14:34,625 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,625 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,625 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,625 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,625 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,625 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,625 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-10-13 06:14:34,625 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-10-13 06:14:34,625 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-10-13 06:14:34,626 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-10-13 06:14:34,626 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-13 06:14:34,626 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-13 06:14:34,626 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-13 06:14:34,626 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-13 06:14:34,626 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-13 06:14:34,626 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-10-13 06:14:34,626 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-10-13 06:14:34,626 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-10-13 06:14:34,626 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-10-13 06:14:34,626 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-10-13 06:14:34,626 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,626 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,626 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,627 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse13 (= |old(~a11~0)| 1)) (.cse31 (= |old(~a19~0)| 1)) (.cse6 (= ~a25~0 |old(~a25~0)|)) (.cse25 (= 7 ~a28~0)) (.cse5 (= ~a11~0 |old(~a11~0)|)) (.cse7 (= ~a17~0 8)) (.cse32 (= ~a25~0 1)) (.cse9 (= ~a19~0 |old(~a19~0)|)) (.cse23 (= ~a28~0 10))) (let ((.cse12 (not (= 10 |old(~a28~0)|))) (.cse14 (and .cse5 .cse7 .cse32 .cse9 .cse23)) (.cse16 (not (<= |old(~a17~0)| 8))) (.cse22 (<= ~a28~0 9)) (.cse18 (not (<= |old(~a28~0)| 9))) (.cse15 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1))))) (.cse30 (not (<= |old(~a11~0)| 0))) (.cse17 (not (<= |old(~a11~0)| 1))) (.cse29 (not (<= |old(~a25~0)| 0))) (.cse19 (not (<= 1 |old(~a11~0)|))) (.cse20 (<= 1 ~a11~0)) (.cse21 (<= ~a11~0 1)) (.cse27 (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6)))) (.cse28 (and .cse5 .cse6 .cse7 .cse25 .cse9)) (.cse2 (not (= 0 |old(~a25~0)|))) (.cse1 (not (= 8 |old(~a17~0)|))) (.cse0 (not .cse31)) (.cse26 (not (= 7 |old(~a28~0)|))) (.cse11 (not (= |old(~a25~0)| 1))) (.cse34 (not (= 7 |old(~a17~0)|))) (.cse33 (= 7 ~a17~0)) (.cse8 (= ~a28~0 9)) (.cse24 (not (= 0 |old(~a19~0)|))) (.cse3 (not (= 9 |old(~a28~0)|))) (.cse4 (not (= ~a21~0 1))) (.cse10 (not .cse13))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (and .cse5 .cse6 .cse7 .cse8 .cse9) .cse10) (or .cse11 .cse12 .cse1 .cse13 .cse4 .cse14 .cse15) (or (not (<= |old(~a25~0)| 1)) (not (<= |old(~a19~0)| 1)) .cse16 .cse17 (not (<= 8 |old(~a17~0)|)) (not (<= 1 |old(~a19~0)|)) .cse18 .cse4 .cse19 (not (<= 1 |old(~a25~0)|)) (and (= ~a17~0 |old(~a17~0)|) .cse20 (<= 9 ~a28~0) (<= 1 ~a25~0) .cse21 .cse22 (<= ~a25~0 1) .cse9) (not (<= 9 |old(~a28~0)|))) (or .cse12 .cse0 .cse1 .cse13 .cse4 .cse15 (and .cse5 .cse6 .cse7 .cse9 .cse23)) (or .cse24 .cse1 .cse13 (and (= ~a19~0 0) .cse5 .cse6 .cse7 .cse25) .cse4 .cse15 .cse26) (or .cse11 .cse12 (not (= |old(~a19~0)| |old(~a25~0)|)) .cse1 .cse14 .cse4) (or .cse27 .cse0 .cse28 .cse1 .cse29 .cse4 .cse26 .cse30) (or .cse16 (not (< 8 |old(~a28~0)|)) .cse0 (and .cse5 (= ~a19~0 1) .cse6 .cse22 (<= ~a17~0 8) (< 7 ~a17~0) (< 8 ~a28~0)) .cse18 .cse4 .cse15 (and (not (<= 2 |old(~a11~0)|)) .cse30) (not (< 7 |old(~a17~0)|))) (or .cse17 (not (<= |old(~a28~0)| 10)) (not (<= 7 |old(~a17~0)|)) (not (<= |old(~a17~0)| 7)) .cse29 (not (<= 10 |old(~a28~0)|)) .cse4 .cse19 (and .cse20 (<= 7 ~a17~0) (<= 10 ~a28~0) .cse6 .cse21 (<= ~a28~0 10) (<= ~a17~0 7) .cse9) (not (<= |old(~a19~0)| 0))) (or .cse27 (and .cse5 .cse6 .cse7 (= ~a28~0 8) .cse9) .cse31 .cse1 .cse2 .cse13 .cse4 (not (= 8 |old(~a28~0)|))) (or .cse31 .cse28 .cse1 .cse2 .cse4 .cse26 .cse10) (or .cse11 .cse0 (and (= ~a28~0 |old(~a28~0)|) .cse5 .cse7 .cse32 .cse9) .cse1 .cse13 .cse4) (or (and .cse33 .cse5 .cse25 .cse32 .cse9) .cse11 .cse34 .cse0 .cse4 .cse26 .cse10) (or .cse11 .cse34 (and .cse33 .cse5 .cse32 .cse8 .cse9) .cse24 .cse3 .cse4 .cse10)))) [2020-10-13 06:14:34,627 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,627 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,627 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,627 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-10-13 06:14:34,627 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-10-13 06:14:34,627 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-10-13 06:14:34,627 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-13 06:14:34,628 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-13 06:14:34,628 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-13 06:14:34,628 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-13 06:14:34,628 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-13 06:14:34,628 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-13 06:14:34,628 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-10-13 06:14:34,628 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-10-13 06:14:34,628 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-10-13 06:14:34,628 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-10-13 06:14:34,628 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,628 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,628 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,628 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,628 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,628 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,628 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-10-13 06:14:34,629 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-10-13 06:14:34,629 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-10-13 06:14:34,629 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-13 06:14:34,629 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-13 06:14:34,629 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-13 06:14:34,629 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-13 06:14:34,629 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-13 06:14:34,629 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-10-13 06:14:34,629 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-10-13 06:14:34,629 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-10-13 06:14:34,629 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-10-13 06:14:34,629 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-10-13 06:14:34,629 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-10-13 06:14:34,629 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-10-13 06:14:34,629 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-10-13 06:14:34,629 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,630 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,630 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,630 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,630 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:14:34,630 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-10-13 06:14:34,630 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-10-13 06:14:34,630 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-10-13 06:14:34,630 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-10-13 06:14:34,630 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-10-13 06:14:34,630 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-13 06:14:34,630 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-13 06:14:34,631 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-13 06:14:34,631 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-13 06:14:34,631 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-13 06:14:34,631 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-10-13 06:14:34,631 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-10-13 06:14:34,631 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-10-13 06:14:34,631 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-10-13 06:14:34,631 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-10-13 06:14:34,631 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-10-13 06:14:34,631 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-10-13 06:14:34,631 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-10-13 06:14:34,631 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-10-13 06:14:34,631 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:14:34,631 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a11~0 0) (= ~a19~0 1) (= ~a21~0 1) (= ~a17~0 8) (<= ~a25~0 0) (= ~a28~0 7)) [2020-10-13 06:14:34,631 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:14:34,631 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:14:34,632 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= |old(~a19~0)| 1)) (and (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8) (= 7 ~a28~0) (= ~a19~0 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (= ~a21~0 1)) (not (= 7 |old(~a28~0)|)) (not (<= |old(~a11~0)| 0))) [2020-10-13 06:14:34,632 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse4 (= ~a11~0 1)) (.cse1 (= ~a19~0 1))) (let ((.cse0 (= 7 ~a17~0)) (.cse5 (= ~a19~0 0)) (.cse6 (= ~a28~0 9)) (.cse14 (= ~a25~0 0)) (.cse15 (not .cse1)) (.cse2 (= 7 ~a28~0)) (.cse12 (not .cse4)) (.cse11 (= ~a17~0 8)) (.cse3 (= ~a25~0 1)) (.cse13 (= ~a28~0 10)) (.cse7 (<= 9 ~a28~0)) (.cse8 (<= 8 ~a17~0)) (.cse9 (<= ~a28~0 9)) (.cse10 (<= ~a17~0 8))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse3 .cse6 .cse4) (not (= |old(~a19~0)| 1)) (and (or (<= ~a11~0 0) (< 1 ~a11~0)) .cse7 .cse1 .cse8 .cse9 .cse10) (not (= 8 |old(~a17~0)|)) (and .cse11 .cse3 .cse12 .cse13) (and .cse5 .cse11 .cse2 .cse12) (not (<= |old(~a25~0)| 0)) (and .cse1 .cse14 .cse11 .cse6) (and .cse14 .cse11 .cse15 .cse12 (= ~a28~0 8)) (and .cse14 .cse11 .cse15 .cse2 .cse4) (and .cse1 .cse11 .cse12 .cse13) (and (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) .cse11 .cse2 (= ~a19~0 |old(~a19~0)|)) (and .cse1 .cse11 .cse3 .cse12) (and (<= 1 ~a11~0) (<= ~a19~0 0) (<= 7 ~a17~0) (<= 10 ~a28~0) (<= ~a11~0 1) (<= ~a17~0 7) (<= ~a25~0 0) (<= ~a28~0 10)) (not (= ~a21~0 1)) (and .cse11 .cse3 (= ~a25~0 ~a19~0) .cse13) (not (= 7 |old(~a28~0)|)) (not (<= |old(~a11~0)| 0)) (and .cse7 (<= 1 ~a25~0) .cse8 (<= ~a19~0 1) .cse9 .cse10 (<= ~a25~0 1) (<= 1 ~a19~0))))) [2020-10-13 06:14:34,632 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-10-13 06:14:34,632 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-10-13 06:14:34,632 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse4 (= ~a11~0 1)) (.cse1 (= ~a19~0 1))) (let ((.cse0 (= 7 ~a17~0)) (.cse10 (not .cse1)) (.cse8 (= ~a25~0 0)) (.cse6 (= ~a28~0 9)) (.cse7 (or (= 5 main_~input~0) (= 6 main_~input~0) (= main_~input~0 4) (= 3 main_~input~0) (= main_~input~0 1))) (.cse3 (= ~a25~0 1)) (.cse13 (= ~a28~0 10)) (.cse5 (= ~a19~0 0)) (.cse9 (= ~a17~0 8)) (.cse12 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) (and (<= main_~input~0 1) (<= 1 main_~input~0)) (and (<= main_~input~0 5) (<= 5 main_~input~0)))) (.cse2 (= 7 ~a28~0)) (.cse11 (not .cse4)) (.cse14 (<= 9 ~a28~0)) (.cse15 (<= 8 ~a17~0)) (.cse16 (<= ~a19~0 1)) (.cse17 (<= ~a28~0 9)) (.cse18 (<= ~a17~0 8)) (.cse19 (<= 1 ~a19~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse3 .cse6 .cse4) (not (= |old(~a19~0)| 1)) (and .cse7 .cse8 .cse9 .cse10 .cse11 (= ~a28~0 8)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse9 .cse12 .cse3 .cse11 .cse13) (and .cse8 .cse9 .cse10 .cse2 .cse4) (and (or (<= ~a11~0 0) (< 1 ~a11~0)) .cse14 .cse15 .cse12 .cse16 .cse17 .cse18 .cse19) (and .cse1 .cse8 .cse9 .cse6 .cse4) (and .cse7 (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) .cse9 .cse2 (= ~a19~0 |old(~a19~0)|)) (and .cse1 .cse9 .cse12 .cse11 .cse13) (and .cse1 .cse9 .cse3 .cse11) (and (<= 1 ~a11~0) (<= ~a19~0 0) (<= 7 ~a17~0) (<= 10 ~a28~0) (<= ~a11~0 1) (<= ~a17~0 7) (<= ~a25~0 0) (<= ~a28~0 10)) (not (= ~a21~0 1)) (and .cse9 .cse3 (= ~a25~0 ~a19~0) .cse13) (not (= 7 |old(~a28~0)|)) (and .cse5 .cse9 .cse12 .cse2 .cse11) (not (<= |old(~a11~0)| 0)) (and .cse14 (<= 1 ~a25~0) .cse15 .cse16 .cse17 .cse18 (<= ~a25~0 1) .cse19)))) [2020-10-13 06:14:34,632 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-10-13 06:14:34,632 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-10-13 06:14:34,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:14:34 BoogieIcfgContainer [2020-10-13 06:14:34,657 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:14:34,659 INFO L168 Benchmark]: Toolchain (without parser) took 83228.51 ms. Allocated memory was 141.0 MB in the beginning and 1.0 GB in the end (delta: 907.0 MB). Free memory was 102.6 MB in the beginning and 732.5 MB in the end (delta: -629.8 MB). Peak memory consumption was 898.5 MB. Max. memory is 7.1 GB. [2020-10-13 06:14:34,659 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 06:14:34,660 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.24 ms. Allocated memory was 141.0 MB in the beginning and 206.0 MB in the end (delta: 65.0 MB). Free memory was 102.4 MB in the beginning and 173.4 MB in the end (delta: -71.0 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. [2020-10-13 06:14:34,661 INFO L168 Benchmark]: Boogie Preprocessor took 107.97 ms. Allocated memory is still 206.0 MB. Free memory was 173.4 MB in the beginning and 168.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-10-13 06:14:34,661 INFO L168 Benchmark]: RCFGBuilder took 1195.39 ms. Allocated memory was 206.0 MB in the beginning and 239.6 MB in the end (delta: 33.6 MB). Free memory was 168.5 MB in the beginning and 182.5 MB in the end (delta: -14.0 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. [2020-10-13 06:14:34,662 INFO L168 Benchmark]: TraceAbstraction took 81191.96 ms. Allocated memory was 239.6 MB in the beginning and 1.0 GB in the end (delta: 808.5 MB). Free memory was 181.1 MB in the beginning and 732.5 MB in the end (delta: -551.4 MB). Peak memory consumption was 878.4 MB. Max. memory is 7.1 GB. [2020-10-13 06:14:34,665 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 728.24 ms. Allocated memory was 141.0 MB in the beginning and 206.0 MB in the end (delta: 65.0 MB). Free memory was 102.4 MB in the beginning and 173.4 MB in the end (delta: -71.0 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.97 ms. Allocated memory is still 206.0 MB. Free memory was 173.4 MB in the beginning and 168.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1195.39 ms. Allocated memory was 206.0 MB in the beginning and 239.6 MB in the end (delta: 33.6 MB). Free memory was 168.5 MB in the beginning and 182.5 MB in the end (delta: -14.0 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 81191.96 ms. Allocated memory was 239.6 MB in the beginning and 1.0 GB in the end (delta: 808.5 MB). Free memory was 181.1 MB in the beginning and 732.5 MB in the end (delta: -551.4 MB). Peak memory consumption was 878.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 502]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((7 == a17 && a19 == 1) && 7 == a28) && a25 == 1) && a11 == 1) || ((((a19 == 0 && 7 == a17) && a25 == 1) && a28 == 9) && a11 == 1)) || !(\old(a19) == 1)) || ((((((a11 <= 0 || 1 < a11) && 9 <= a28) && a19 == 1) && 8 <= a17) && a28 <= 9) && a17 <= 8)) || !(8 == \old(a17))) || (((a17 == 8 && a25 == 1) && !(a11 == 1)) && a28 == 10)) || (((a19 == 0 && a17 == 8) && 7 == a28) && !(a11 == 1))) || !(\old(a25) <= 0)) || (((a19 == 1 && a25 == 0) && a17 == 8) && a28 == 9)) || ((((a25 == 0 && a17 == 8) && !(a19 == 1)) && !(a11 == 1)) && a28 == 8)) || ((((a25 == 0 && a17 == 8) && !(a19 == 1)) && 7 == a28) && a11 == 1)) || (((a19 == 1 && a17 == 8) && !(a11 == 1)) && a28 == 10)) || ((((a11 == \old(a11) && a25 == \old(a25)) && a17 == 8) && 7 == a28) && a19 == \old(a19))) || (((a19 == 1 && a17 == 8) && a25 == 1) && !(a11 == 1))) || (((((((1 <= a11 && a19 <= 0) && 7 <= a17) && 10 <= a28) && a11 <= 1) && a17 <= 7) && a25 <= 0) && a28 <= 10)) || !(a21 == 1)) || (((a17 == 8 && a25 == 1) && a25 == a19) && a28 == 10)) || !(7 == \old(a28))) || !(\old(a11) <= 0)) || (((((((9 <= a28 && 1 <= a25) && 8 <= a17) && a19 <= 1) && a28 <= 9) && a17 <= 8) && a25 <= 1) && 1 <= a19) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 75.4s, OverallIterations: 18, TraceHistogramMax: 5, AutomataDifference: 33.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 671 SDtfs, 6705 SDslu, 963 SDs, 0 SdLazy, 15125 SolverSat, 1262 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 401 GetRequests, 158 SyntacticMatches, 10 SemanticMatches, 233 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 17.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=869occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 18 MinimizatonAttempts, 231 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 108 PreInvPairs, 146 NumberOfFragments, 1660 HoareAnnotationTreeSize, 108 FomulaSimplifications, 20710124 FormulaSimplificationTreeSizeReduction, 2.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2237 FormulaSimplificationTreeSizeReductionInter, 3.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 38.0s InterpolantComputationTime, 3669 NumberOfCodeBlocks, 3669 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3651 ConstructedInterpolants, 0 QuantifiedInterpolants, 8381154 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 1 PerfectInterpolantSequences, 2294/2328 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 correct! Received shutdown request...