/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label23.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:02:11,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:02:11,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:02:11,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:02:11,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:02:11,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:02:11,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:02:11,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:02:11,205 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:02:11,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:02:11,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:02:11,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:02:11,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:02:11,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:02:11,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:02:11,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:02:11,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:02:11,212 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:02:11,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:02:11,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:02:11,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:02:11,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:02:11,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:02:11,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:02:11,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:02:11,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:02:11,223 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:02:11,224 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:02:11,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:02:11,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:02:11,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:02:11,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:02:11,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:02:11,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:02:11,229 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:02:11,229 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:02:11,230 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:02:11,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:02:11,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:02:11,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:02:11,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:02:11,232 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 06:02:11,259 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:02:11,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:02:11,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:02:11,260 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:02:11,260 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:02:11,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:02:11,261 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:02:11,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:02:11,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:02:11,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:02:11,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:02:11,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:02:11,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:02:11,265 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:02:11,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:02:11,266 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:02:11,266 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:02:11,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:02:11,266 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:02:11,267 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:02:11,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:02:11,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:02:11,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:02:11,267 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:02:11,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:02:11,268 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:02:11,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:02:11,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:02:11,272 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:02:11,272 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 06:02:11,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:02:11,578 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:02:11,581 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:02:11,582 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:02:11,583 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:02:11,584 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label23.c [2020-10-13 06:02:11,645 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/820e09630/0b928380d3c94cea9c9c5d7c1a0e2c71/FLAG8ece6676c [2020-10-13 06:02:12,210 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:02:12,210 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label23.c [2020-10-13 06:02:12,224 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/820e09630/0b928380d3c94cea9c9c5d7c1a0e2c71/FLAG8ece6676c [2020-10-13 06:02:12,498 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/820e09630/0b928380d3c94cea9c9c5d7c1a0e2c71 [2020-10-13 06:02:12,509 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:02:12,511 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:02:12,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:02:12,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:02:12,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:02:12,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:02:12" (1/1) ... [2020-10-13 06:02:12,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@177c5926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:12, skipping insertion in model container [2020-10-13 06:02:12,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:02:12" (1/1) ... [2020-10-13 06:02:12,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:02:12,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:02:13,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:02:13,165 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:02:13,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:02:13,303 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:02:13,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:13 WrapperNode [2020-10-13 06:02:13,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:02:13,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:02:13,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:02:13,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:02:13,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:13" (1/1) ... [2020-10-13 06:02:13,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:13" (1/1) ... [2020-10-13 06:02:13,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:13" (1/1) ... [2020-10-13 06:02:13,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:13" (1/1) ... [2020-10-13 06:02:13,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:13" (1/1) ... [2020-10-13 06:02:13,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:13" (1/1) ... [2020-10-13 06:02:13,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:13" (1/1) ... [2020-10-13 06:02:13,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:02:13,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:02:13,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:02:13,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:02:13,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:13" (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 06:02:13,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:02:13,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:02:13,491 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:02:13,491 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:02:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:02:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:02:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:02:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:02:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:02:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:02:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:02:14,724 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:02:14,725 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:02:14,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:02:14 BoogieIcfgContainer [2020-10-13 06:02:14,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:02:14,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:02:14,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:02:14,744 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:02:14,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:02:12" (1/3) ... [2020-10-13 06:02:14,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610da11d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:02:14, skipping insertion in model container [2020-10-13 06:02:14,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:02:13" (2/3) ... [2020-10-13 06:02:14,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610da11d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:02:14, skipping insertion in model container [2020-10-13 06:02:14,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:02:14" (3/3) ... [2020-10-13 06:02:14,750 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label23.c [2020-10-13 06:02:14,764 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:02:14,777 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:02:14,796 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:02:14,835 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:02:14,836 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:02:14,836 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:02:14,837 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:02:14,837 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:02:14,837 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:02:14,837 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:02:14,837 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:02:14,871 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-13 06:02:14,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-13 06:02:14,891 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:14,892 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] [2020-10-13 06:02:14,893 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:14,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:14,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1083972551, now seen corresponding path program 1 times [2020-10-13 06:02:14,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:14,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [663532723] [2020-10-13 06:02:14,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:15,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:15,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:16,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:16,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-13 06:02:16,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:16,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1488 [2020-10-13 06:02:16,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:16,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 06:02:16,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:02:16,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:02:16,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:02:17,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:17,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:17,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:17,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:17,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:17,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:02:17,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:17,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:17,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:17,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:02:17,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:17,654 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 06:02:17,655 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [663532723] [2020-10-13 06:02:17,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:02:17,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 06:02:17,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831004694] [2020-10-13 06:02:17,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:17,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:17,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:17,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:17,683 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 13 states. [2020-10-13 06:02:18,161 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2020-10-13 06:02:18,405 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2020-10-13 06:02:18,677 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 92 [2020-10-13 06:02:18,932 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2020-10-13 06:02:19,225 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2020-10-13 06:02:19,687 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 89 [2020-10-13 06:02:20,241 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2020-10-13 06:02:20,632 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2020-10-13 06:02:21,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:21,591 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-13 06:02:21,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:02:21,595 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 101 [2020-10-13 06:02:21,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:21,608 INFO L225 Difference]: With dead ends: 474 [2020-10-13 06:02:21,609 INFO L226 Difference]: Without dead ends: 205 [2020-10-13 06:02:21,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:02:21,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-13 06:02:21,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-13 06:02:21,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 06:02:21,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-13 06:02:21,679 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 101 [2020-10-13 06:02:21,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:21,680 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-13 06:02:21,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:21,681 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-13 06:02:21,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-13 06:02:21,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:21,686 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:21,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:02:21,687 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:21,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:21,688 INFO L82 PathProgramCache]: Analyzing trace with hash -941830708, now seen corresponding path program 1 times [2020-10-13 06:02:21,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:21,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [638576926] [2020-10-13 06:02:21,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:21,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:21,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:21,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:22,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:22,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:22,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 06:02:22,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:02:22,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1177 [2020-10-13 06:02:22,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:22,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:22,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 06:02:22,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:02:22,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:02:23,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:23,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:23,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:23,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:23,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:23,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:02:23,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:23,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:23,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:23,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:23,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:23,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:23,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:23,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:23,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:02:23,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:23,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:02:23,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:23,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:23,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:23,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:02:23,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:23,512 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:02:23,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [638576926] [2020-10-13 06:02:23,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:23,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:02:23,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4535588] [2020-10-13 06:02:23,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:23,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:23,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:23,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:23,517 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-13 06:02:24,394 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:02:25,116 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:02:25,462 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:02:25,885 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:02:26,119 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:02:26,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:26,754 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-13 06:02:26,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:02:26,758 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 109 [2020-10-13 06:02:26,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:26,767 INFO L225 Difference]: With dead ends: 433 [2020-10-13 06:02:26,767 INFO L226 Difference]: Without dead ends: 294 [2020-10-13 06:02:26,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-13 06:02:26,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-13 06:02:26,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-13 06:02:26,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 06:02:26,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-13 06:02:26,817 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 109 [2020-10-13 06:02:26,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:26,818 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-13 06:02:26,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:26,818 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-13 06:02:26,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-13 06:02:26,828 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:26,829 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:26,829 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:02:26,829 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:26,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:26,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1277669234, now seen corresponding path program 1 times [2020-10-13 06:02:26,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:26,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [295209041] [2020-10-13 06:02:26,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:26,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:27,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:27,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-13 06:02:27,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:27,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-10-13 06:02:27,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:27,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:27,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:02:27,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-13 06:02:27,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:02:27,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:27,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:27,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:27,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:27,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:27,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:27,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:02:27,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:27,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:27,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:27,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:27,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:27,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:27,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:27,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:27,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:02:27,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:27,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:02:27,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:27,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:27,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:27,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:02:27,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:27,323 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:02:27,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [295209041] [2020-10-13 06:02:27,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:27,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:02:27,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329626142] [2020-10-13 06:02:27,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:02:27,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:27,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:02:27,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:02:27,327 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 5 states. [2020-10-13 06:02:28,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:28,399 INFO L93 Difference]: Finished difference Result 625 states and 850 transitions. [2020-10-13 06:02:28,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:28,400 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2020-10-13 06:02:28,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:28,404 INFO L225 Difference]: With dead ends: 625 [2020-10-13 06:02:28,404 INFO L226 Difference]: Without dead ends: 415 [2020-10-13 06:02:28,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:02:28,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-10-13 06:02:28,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 413. [2020-10-13 06:02:28,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-10-13 06:02:28,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 520 transitions. [2020-10-13 06:02:28,433 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 520 transitions. Word has length 112 [2020-10-13 06:02:28,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:28,434 INFO L479 AbstractCegarLoop]: Abstraction has 413 states and 520 transitions. [2020-10-13 06:02:28,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:28,434 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 520 transitions. [2020-10-13 06:02:28,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-13 06:02:28,437 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:28,437 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:28,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:02:28,438 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:28,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:28,438 INFO L82 PathProgramCache]: Analyzing trace with hash -2055064605, now seen corresponding path program 1 times [2020-10-13 06:02:28,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:28,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253238369] [2020-10-13 06:02:28,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:28,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:28,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:28,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:30,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:32,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:32,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-13 06:02:32,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:02:32,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4038 [2020-10-13 06:02:32,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:32,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:32,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:02:32,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:02:32,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:32,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:32,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:32,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:32,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:32,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:32,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:32,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:32,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:32,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:32,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:32,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:32,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:32,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:32,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:32,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:32,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:32,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:02:32,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:32,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:02:32,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:32,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:32,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:32,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:02:32,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:32,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:02:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:32,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:32,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:32,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:02:32,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:32,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:02:32,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:32,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:32,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:02:32,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:02:32,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:32,656 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:02:32,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1253238369] [2020-10-13 06:02:32,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:32,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:02:32,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363730144] [2020-10-13 06:02:32,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:02:32,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:32,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:02:32,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:02:32,659 INFO L87 Difference]: Start difference. First operand 413 states and 520 transitions. Second operand 7 states. [2020-10-13 06:02:33,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:33,906 INFO L93 Difference]: Finished difference Result 921 states and 1174 transitions. [2020-10-13 06:02:33,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 06:02:33,910 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 121 [2020-10-13 06:02:33,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:33,915 INFO L225 Difference]: With dead ends: 921 [2020-10-13 06:02:33,915 INFO L226 Difference]: Without dead ends: 574 [2020-10-13 06:02:33,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:02:33,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-10-13 06:02:33,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 554. [2020-10-13 06:02:33,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2020-10-13 06:02:33,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 651 transitions. [2020-10-13 06:02:33,945 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 651 transitions. Word has length 121 [2020-10-13 06:02:33,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:33,945 INFO L479 AbstractCegarLoop]: Abstraction has 554 states and 651 transitions. [2020-10-13 06:02:33,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:02:33,946 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 651 transitions. [2020-10-13 06:02:33,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-13 06:02:33,949 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:33,949 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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 06:02:33,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:02:33,983 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:33,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:33,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1662560755, now seen corresponding path program 1 times [2020-10-13 06:02:33,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:33,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1329847644] [2020-10-13 06:02:33,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:34,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:34,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:34,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:34,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:34,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:35,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:35,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 06:02:35,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:02:35,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1642 [2020-10-13 06:02:35,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:35,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:35,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:02:35,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:02:35,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:35,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:35,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:35,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:35,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:35,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:35,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:35,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:02:35,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:35,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:35,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:35,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:35,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 06:02:35,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:35,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:35,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:35,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:35,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:02:35,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:35,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:02:35,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:35,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:35,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:35,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:02:35,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:35,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:02:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:35,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:35,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:35,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:02:35,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:35,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 06:02:35,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:35,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:35,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:02:35,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:02:35,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:02:35,958 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:02:35,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1329847644] [2020-10-13 06:02:35,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:35,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 06:02:35,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921060596] [2020-10-13 06:02:35,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 06:02:35,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:35,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 06:02:35,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:02:35,961 INFO L87 Difference]: Start difference. First operand 554 states and 651 transitions. Second operand 8 states. [2020-10-13 06:02:38,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:38,274 INFO L93 Difference]: Finished difference Result 1197 states and 1448 transitions. [2020-10-13 06:02:38,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 06:02:38,275 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 129 [2020-10-13 06:02:38,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:38,283 INFO L225 Difference]: With dead ends: 1197 [2020-10-13 06:02:38,283 INFO L226 Difference]: Without dead ends: 429 [2020-10-13 06:02:38,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-10-13 06:02:38,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-10-13 06:02:38,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 415. [2020-10-13 06:02:38,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-10-13 06:02:38,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 460 transitions. [2020-10-13 06:02:38,318 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 460 transitions. Word has length 129 [2020-10-13 06:02:38,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:38,319 INFO L479 AbstractCegarLoop]: Abstraction has 415 states and 460 transitions. [2020-10-13 06:02:38,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 06:02:38,319 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 460 transitions. [2020-10-13 06:02:38,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-13 06:02:38,323 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:38,323 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:02:38,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:02:38,324 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:38,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:38,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1607169290, now seen corresponding path program 1 times [2020-10-13 06:02:38,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:38,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1187670702] [2020-10-13 06:02:38,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:38,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:38,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:38,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:40,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:40,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 06:02:40,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:02:40,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1718 [2020-10-13 06:02:40,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:40,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:40,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 06:02:40,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:02:40,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:02:40,689 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:02:40,825 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 43 [2020-10-13 06:02:41,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:41,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:41,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:41,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:41,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:41,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:41,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:41,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:41,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:41,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:41,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:41,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:41,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:41,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:41,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:41,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:02:41,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:41,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 06:02:41,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:41,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:41,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:41,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 06:02:41,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:41,541 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:02:41,542 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1187670702] [2020-10-13 06:02:41,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:41,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:02:41,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740459696] [2020-10-13 06:02:41,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:41,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:41,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:41,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:41,545 INFO L87 Difference]: Start difference. First operand 415 states and 460 transitions. Second operand 13 states. [2020-10-13 06:02:42,079 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-13 06:02:42,226 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:02:42,640 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:02:43,064 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:02:43,369 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:02:43,664 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:02:44,062 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:02:44,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:44,423 INFO L93 Difference]: Finished difference Result 832 states and 940 transitions. [2020-10-13 06:02:44,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:02:44,424 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 142 [2020-10-13 06:02:44,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:44,427 INFO L225 Difference]: With dead ends: 832 [2020-10-13 06:02:44,427 INFO L226 Difference]: Without dead ends: 466 [2020-10-13 06:02:44,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:02:44,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-10-13 06:02:44,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 458. [2020-10-13 06:02:44,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2020-10-13 06:02:44,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 508 transitions. [2020-10-13 06:02:44,469 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 508 transitions. Word has length 142 [2020-10-13 06:02:44,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:44,470 INFO L479 AbstractCegarLoop]: Abstraction has 458 states and 508 transitions. [2020-10-13 06:02:44,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:44,475 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 508 transitions. [2020-10-13 06:02:44,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-13 06:02:44,477 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:44,478 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:44,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:02:44,478 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:44,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:44,479 INFO L82 PathProgramCache]: Analyzing trace with hash 2060450469, now seen corresponding path program 1 times [2020-10-13 06:02:44,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:44,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [785843848] [2020-10-13 06:02:44,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:44,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:44,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:44,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:44,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:45,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:46,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:48,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:48,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-13 06:02:48,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:02:48,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3703 [2020-10-13 06:02:48,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:48,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:48,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 06:02:48,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 06:02:48,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 06:02:48,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:48,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:48,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:48,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:48,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:48,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:02:48,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:48,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:48,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:48,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:48,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:02:48,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:48,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:48,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:48,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:48,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:02:48,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:48,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:02:48,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:48,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:48,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:48,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:48,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:48,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:02:48,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:48,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:48,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:48,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:02:48,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:48,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 06:02:48,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:48,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:48,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:48,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 06:02:48,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:02:49,036 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 06:02:49,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [785843848] [2020-10-13 06:02:49,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:49,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:02:49,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358098842] [2020-10-13 06:02:49,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:49,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:49,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:49,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:49,047 INFO L87 Difference]: Start difference. First operand 458 states and 508 transitions. Second operand 13 states. [2020-10-13 06:02:49,751 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-13 06:02:49,903 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-13 06:02:50,292 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 06:02:50,732 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 06:02:50,975 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-13 06:02:51,178 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-13 06:02:51,482 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-10-13 06:02:51,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:51,903 INFO L93 Difference]: Finished difference Result 928 states and 1052 transitions. [2020-10-13 06:02:51,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:02:51,905 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 159 [2020-10-13 06:02:51,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:51,908 INFO L225 Difference]: With dead ends: 928 [2020-10-13 06:02:51,908 INFO L226 Difference]: Without dead ends: 536 [2020-10-13 06:02:51,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:02:51,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2020-10-13 06:02:51,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 530. [2020-10-13 06:02:51,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2020-10-13 06:02:51,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 585 transitions. [2020-10-13 06:02:51,929 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 585 transitions. Word has length 159 [2020-10-13 06:02:51,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:51,930 INFO L479 AbstractCegarLoop]: Abstraction has 530 states and 585 transitions. [2020-10-13 06:02:51,930 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:51,930 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 585 transitions. [2020-10-13 06:02:51,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-13 06:02:51,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:51,932 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:02:51,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:02:51,933 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:51,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:51,933 INFO L82 PathProgramCache]: Analyzing trace with hash 257579638, now seen corresponding path program 1 times [2020-10-13 06:02:51,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:51,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1328754204] [2020-10-13 06:02:51,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:52,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:52,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:52,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:53,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:53,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-13 06:02:53,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:02:53,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1384 [2020-10-13 06:02:53,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:53,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:53,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 06:02:53,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 06:02:53,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:53,738 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2020-10-13 06:02:53,992 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-13 06:02:54,132 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:02:54,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:54,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:54,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:54,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:54,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:54,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:54,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:54,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:54,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:54,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:54,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:54,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:54,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:54,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:54,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:54,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:54,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:54,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 06:02:54,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:54,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:54,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:54,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 06:02:54,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:54,864 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 59 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:02:54,864 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1328754204] [2020-10-13 06:02:54,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:54,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:02:54,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846434556] [2020-10-13 06:02:54,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:02:54,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:54,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:02:54,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:02:54,866 INFO L87 Difference]: Start difference. First operand 530 states and 585 transitions. Second operand 14 states. [2020-10-13 06:02:55,391 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-10-13 06:02:55,618 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-10-13 06:02:55,927 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 115 [2020-10-13 06:02:56,371 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 112 [2020-10-13 06:02:56,861 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 109 [2020-10-13 06:02:57,138 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2020-10-13 06:02:57,452 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2020-10-13 06:02:57,752 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2020-10-13 06:02:58,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:58,062 INFO L93 Difference]: Finished difference Result 1067 states and 1203 transitions. [2020-10-13 06:02:58,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:02:58,063 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 164 [2020-10-13 06:02:58,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:58,066 INFO L225 Difference]: With dead ends: 1067 [2020-10-13 06:02:58,066 INFO L226 Difference]: Without dead ends: 583 [2020-10-13 06:02:58,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:02:58,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2020-10-13 06:02:58,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 581. [2020-10-13 06:02:58,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 581 states. [2020-10-13 06:02:58,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 637 transitions. [2020-10-13 06:02:58,088 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 637 transitions. Word has length 164 [2020-10-13 06:02:58,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:58,088 INFO L479 AbstractCegarLoop]: Abstraction has 581 states and 637 transitions. [2020-10-13 06:02:58,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:02:58,088 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 637 transitions. [2020-10-13 06:02:58,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-13 06:02:58,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:58,091 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, 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] [2020-10-13 06:02:58,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:02:58,092 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:58,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:58,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1342107927, now seen corresponding path program 1 times [2020-10-13 06:02:58,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:58,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1671130675] [2020-10-13 06:02:58,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:58,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:58,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:58,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:58,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:58,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:59,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:59,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-13 06:02:59,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:02:59,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1726 [2020-10-13 06:02:59,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:59,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:59,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 06:02:59,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:02:59,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:00,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:00,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:00,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:00,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:00,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:00,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:00,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:00,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:00,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:00,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:00,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:00,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:00,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:00,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:00,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:03:00,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:00,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:03:00,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:00,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:00,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:00,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:00,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:00,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:03:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:00,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:00,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:00,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:03:00,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:00,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:03:00,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:00,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:00,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:00,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 06:03:00,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:00,398 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-13 06:03:00,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1671130675] [2020-10-13 06:03:00,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:00,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:00,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013065178] [2020-10-13 06:03:00,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:00,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:00,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:00,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:00,401 INFO L87 Difference]: Start difference. First operand 581 states and 637 transitions. Second operand 13 states. [2020-10-13 06:03:01,266 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-10-13 06:03:01,552 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2020-10-13 06:03:01,763 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-10-13 06:03:02,016 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2020-10-13 06:03:02,293 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2020-10-13 06:03:02,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:02,647 INFO L93 Difference]: Finished difference Result 1160 states and 1297 transitions. [2020-10-13 06:03:02,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:03:02,650 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 175 [2020-10-13 06:03:02,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:02,653 INFO L225 Difference]: With dead ends: 1160 [2020-10-13 06:03:02,653 INFO L226 Difference]: Without dead ends: 645 [2020-10-13 06:03:02,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:03:02,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2020-10-13 06:03:02,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 643. [2020-10-13 06:03:02,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-10-13 06:03:02,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 705 transitions. [2020-10-13 06:03:02,677 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 705 transitions. Word has length 175 [2020-10-13 06:03:02,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:02,677 INFO L479 AbstractCegarLoop]: Abstraction has 643 states and 705 transitions. [2020-10-13 06:03:02,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:02,677 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 705 transitions. [2020-10-13 06:03:02,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-13 06:03:02,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:02,681 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:03:02,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:03:02,681 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:02,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:02,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1868312505, now seen corresponding path program 1 times [2020-10-13 06:03:02,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:02,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1845077762] [2020-10-13 06:03:02,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:02,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:02,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:02,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:03,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:05,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:05,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-13 06:03:05,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:03:05,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2738 [2020-10-13 06:03:05,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:05,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:05,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 06:03:05,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:03:05,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:06,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:06,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:06,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:06,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:06,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:06,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:06,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:06,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:06,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:06,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:06,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:06,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:06,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:06,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:06,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:06,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:03:06,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:06,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:03:06,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:06,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:06,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:06,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:06,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:06,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:03:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:06,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:06,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:06,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:03:06,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:06,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:03:06,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:06,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:06,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:06,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:03:06,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:06,241 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 06:03:06,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1845077762] [2020-10-13 06:03:06,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:06,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:06,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233870381] [2020-10-13 06:03:06,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:06,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:06,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:06,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:06,244 INFO L87 Difference]: Start difference. First operand 643 states and 705 transitions. Second operand 13 states. [2020-10-13 06:03:06,864 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-13 06:03:07,064 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-13 06:03:07,342 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-13 06:03:07,620 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-13 06:03:07,822 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-13 06:03:08,047 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-10-13 06:03:08,340 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-10-13 06:03:08,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:08,707 INFO L93 Difference]: Finished difference Result 1282 states and 1429 transitions. [2020-10-13 06:03:08,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:03:08,710 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 178 [2020-10-13 06:03:08,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:08,713 INFO L225 Difference]: With dead ends: 1282 [2020-10-13 06:03:08,713 INFO L226 Difference]: Without dead ends: 688 [2020-10-13 06:03:08,715 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:03:08,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2020-10-13 06:03:08,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 681. [2020-10-13 06:03:08,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 681 states. [2020-10-13 06:03:08,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 750 transitions. [2020-10-13 06:03:08,739 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 750 transitions. Word has length 178 [2020-10-13 06:03:08,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:08,740 INFO L479 AbstractCegarLoop]: Abstraction has 681 states and 750 transitions. [2020-10-13 06:03:08,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:08,740 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 750 transitions. [2020-10-13 06:03:08,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-13 06:03:08,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:08,744 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, 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] [2020-10-13 06:03:08,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:03:08,744 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:08,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:08,745 INFO L82 PathProgramCache]: Analyzing trace with hash -2033217885, now seen corresponding path program 1 times [2020-10-13 06:03:08,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:08,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1480476949] [2020-10-13 06:03:08,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:08,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:08,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:08,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:08,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:09,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:11,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:11,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-13 06:03:11,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:03:11,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2250 [2020-10-13 06:03:11,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:11,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:11,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 06:03:11,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:03:11,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:11,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:11,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:11,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:11,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:11,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:11,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:11,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:11,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:11,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:11,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:11,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:11,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:11,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:11,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:11,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:03:11,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:11,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:11,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:11,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:11,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:11,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:11,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:11,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:03:11,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:11,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:11,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:11,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 06:03:11,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:11,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:03:11,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:11,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:11,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:11,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 06:03:11,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:11,618 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 75 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 06:03:11,619 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1480476949] [2020-10-13 06:03:11,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:11,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:11,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576378111] [2020-10-13 06:03:11,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:11,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:11,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:11,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:11,621 INFO L87 Difference]: Start difference. First operand 681 states and 750 transitions. Second operand 13 states. [2020-10-13 06:03:12,541 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:03:12,818 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:03:13,035 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:03:13,250 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:03:13,552 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:03:13,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:13,821 INFO L93 Difference]: Finished difference Result 1360 states and 1520 transitions. [2020-10-13 06:03:13,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:03:13,822 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 181 [2020-10-13 06:03:13,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:13,827 INFO L225 Difference]: With dead ends: 1360 [2020-10-13 06:03:13,827 INFO L226 Difference]: Without dead ends: 728 [2020-10-13 06:03:13,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:03:13,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2020-10-13 06:03:13,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 724. [2020-10-13 06:03:13,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2020-10-13 06:03:13,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 799 transitions. [2020-10-13 06:03:13,852 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 799 transitions. Word has length 181 [2020-10-13 06:03:13,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:13,852 INFO L479 AbstractCegarLoop]: Abstraction has 724 states and 799 transitions. [2020-10-13 06:03:13,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:13,853 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 799 transitions. [2020-10-13 06:03:13,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-13 06:03:13,856 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:13,856 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:13,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:03:13,856 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:13,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:13,857 INFO L82 PathProgramCache]: Analyzing trace with hash -858494962, now seen corresponding path program 1 times [2020-10-13 06:03:13,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:13,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [295137479] [2020-10-13 06:03:13,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:13,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:13,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:13,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:14,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:14,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:14,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:16,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:16,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-13 06:03:16,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:03:16,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2345 [2020-10-13 06:03:16,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:16,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:16,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-13 06:03:16,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:03:16,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:16,690 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2020-10-13 06:03:16,913 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 52 [2020-10-13 06:03:17,174 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 51 [2020-10-13 06:03:17,414 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 48 [2020-10-13 06:03:17,652 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 45 [2020-10-13 06:03:17,870 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 41 [2020-10-13 06:03:18,068 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 35 [2020-10-13 06:03:18,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:18,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:18,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:18,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:18,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:18,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:18,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:18,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:18,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:18,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:18,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:18,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:18,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:18,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:18,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:18,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:03:18,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:18,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:03:18,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:18,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:18,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:18,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:18,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:18,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:03:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:18,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:18,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:18,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:03:18,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:18,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:03:18,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:18,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:18,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:18,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:18,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:18,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:03:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:18,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:18,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:18,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 06:03:18,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:18,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 06:03:18,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:18,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:18,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:18,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 06:03:18,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:18,393 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 06:03:18,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [295137479] [2020-10-13 06:03:18,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:18,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:18,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412246812] [2020-10-13 06:03:18,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:18,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:18,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:18,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:18,395 INFO L87 Difference]: Start difference. First operand 724 states and 799 transitions. Second operand 13 states. [2020-10-13 06:03:18,926 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 06:03:19,101 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 06:03:19,492 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 114 [2020-10-13 06:03:19,879 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 111 [2020-10-13 06:03:20,190 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 108 [2020-10-13 06:03:20,380 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2020-10-13 06:03:20,695 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 105 [2020-10-13 06:03:21,108 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 100 [2020-10-13 06:03:21,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:21,438 INFO L93 Difference]: Finished difference Result 1442 states and 1615 transitions. [2020-10-13 06:03:21,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:03:21,443 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 185 [2020-10-13 06:03:21,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:21,446 INFO L225 Difference]: With dead ends: 1442 [2020-10-13 06:03:21,446 INFO L226 Difference]: Without dead ends: 767 [2020-10-13 06:03:21,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:03:21,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2020-10-13 06:03:21,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 724. [2020-10-13 06:03:21,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2020-10-13 06:03:21,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 799 transitions. [2020-10-13 06:03:21,473 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 799 transitions. Word has length 185 [2020-10-13 06:03:21,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:21,473 INFO L479 AbstractCegarLoop]: Abstraction has 724 states and 799 transitions. [2020-10-13 06:03:21,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:21,473 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 799 transitions. [2020-10-13 06:03:21,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-13 06:03:21,477 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:21,477 INFO L422 BasicCegarLoop]: trace histogram [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, 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 06:03:21,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:03:21,477 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:21,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:21,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1065959892, now seen corresponding path program 1 times [2020-10-13 06:03:21,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:21,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720726669] [2020-10-13 06:03:21,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:21,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:21,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:21,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:21,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:22,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:23,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:23,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-10-13 06:03:23,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:03:23,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2448 [2020-10-13 06:03:23,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:23,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:23,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-13 06:03:23,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:03:23,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:24,397 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2020-10-13 06:03:24,582 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2020-10-13 06:03:24,811 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 52 [2020-10-13 06:03:25,072 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 52 [2020-10-13 06:03:25,327 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 49 [2020-10-13 06:03:25,563 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 45 [2020-10-13 06:03:25,790 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 41 [2020-10-13 06:03:26,019 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 35 [2020-10-13 06:03:26,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:26,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:26,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:26,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:26,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:26,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:26,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:26,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:26,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:26,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:26,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:26,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:26,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:26,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:26,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:26,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:03:26,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:26,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:03:26,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:26,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:26,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:26,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:26,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:26,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:03:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:26,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:26,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:26,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:03:26,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:26,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:03:26,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:26,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:26,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:26,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:26,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:26,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:03:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:26,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:26,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:26,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 06:03:26,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:26,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:03:26,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:26,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:26,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:26,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 06:03:26,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:26,385 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 84 proven. 3 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2020-10-13 06:03:26,386 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720726669] [2020-10-13 06:03:26,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:26,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:26,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662384526] [2020-10-13 06:03:26,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:26,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:26,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:26,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:26,387 INFO L87 Difference]: Start difference. First operand 724 states and 799 transitions. Second operand 13 states. [2020-10-13 06:03:26,614 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 06:03:26,806 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 06:03:27,245 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 115 [2020-10-13 06:03:27,821 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 112 [2020-10-13 06:03:28,199 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 109 [2020-10-13 06:03:28,553 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 106 [2020-10-13 06:03:28,853 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 101 [2020-10-13 06:03:29,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:29,689 INFO L93 Difference]: Finished difference Result 1477 states and 1660 transitions. [2020-10-13 06:03:29,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:03:29,691 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 191 [2020-10-13 06:03:29,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:29,695 INFO L225 Difference]: With dead ends: 1477 [2020-10-13 06:03:29,695 INFO L226 Difference]: Without dead ends: 819 [2020-10-13 06:03:29,698 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:03:29,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2020-10-13 06:03:29,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 732. [2020-10-13 06:03:29,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 732 states. [2020-10-13 06:03:29,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 810 transitions. [2020-10-13 06:03:29,722 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 810 transitions. Word has length 191 [2020-10-13 06:03:29,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:29,723 INFO L479 AbstractCegarLoop]: Abstraction has 732 states and 810 transitions. [2020-10-13 06:03:29,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:29,723 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 810 transitions. [2020-10-13 06:03:29,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-10-13 06:03:29,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:29,727 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:29,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:03:29,728 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:29,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:29,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1383031100, now seen corresponding path program 1 times [2020-10-13 06:03:29,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:29,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [20062859] [2020-10-13 06:03:29,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:29,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:29,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:29,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:29,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:30,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:30,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:32,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:32,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-13 06:03:32,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:03:32,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2583 [2020-10-13 06:03:32,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:32,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:32,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-13 06:03:32,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:03:32,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:32,878 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2020-10-13 06:03:33,157 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 52 [2020-10-13 06:03:33,417 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 49 [2020-10-13 06:03:33,664 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 45 [2020-10-13 06:03:33,876 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 42 [2020-10-13 06:03:34,071 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 39 [2020-10-13 06:03:34,254 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 33 [2020-10-13 06:03:34,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:34,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:34,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:34,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:34,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:34,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:03:34,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:34,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:34,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:34,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:34,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:34,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:34,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:34,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:34,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:34,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:03:34,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:34,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:03:34,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:34,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:34,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:34,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:34,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:34,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:03:34,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:34,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:34,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:34,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:03:34,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:34,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:03:34,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:34,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:34,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:34,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:34,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:34,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:03:34,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:34,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:34,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:34,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 06:03:34,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:34,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:03:34,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:34,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:34,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:34,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 06:03:34,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:34,570 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 96 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:03:34,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [20062859] [2020-10-13 06:03:34,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:34,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:34,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431931461] [2020-10-13 06:03:34,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:34,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:34,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:34,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:34,573 INFO L87 Difference]: Start difference. First operand 732 states and 810 transitions. Second operand 13 states. [2020-10-13 06:03:35,072 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 06:03:35,256 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 06:03:35,525 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-13 06:03:35,827 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 115 [2020-10-13 06:03:36,330 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 112 [2020-10-13 06:03:36,681 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2020-10-13 06:03:37,108 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 106 [2020-10-13 06:03:37,476 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 101 [2020-10-13 06:03:38,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:38,040 INFO L93 Difference]: Finished difference Result 1463 states and 1646 transitions. [2020-10-13 06:03:38,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 06:03:38,041 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 203 [2020-10-13 06:03:38,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:38,043 INFO L225 Difference]: With dead ends: 1463 [2020-10-13 06:03:38,044 INFO L226 Difference]: Without dead ends: 397 [2020-10-13 06:03:38,047 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:03:38,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2020-10-13 06:03:38,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 395. [2020-10-13 06:03:38,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2020-10-13 06:03:38,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 417 transitions. [2020-10-13 06:03:38,057 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 417 transitions. Word has length 203 [2020-10-13 06:03:38,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:38,058 INFO L479 AbstractCegarLoop]: Abstraction has 395 states and 417 transitions. [2020-10-13 06:03:38,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:38,058 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 417 transitions. [2020-10-13 06:03:38,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-13 06:03:38,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:38,060 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:03:38,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:03:38,060 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:38,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:38,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1166445361, now seen corresponding path program 1 times [2020-10-13 06:03:38,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:38,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1915249712] [2020-10-13 06:03:38,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:38,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:38,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:38,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:38,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:40,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:40,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-10-13 06:03:40,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:03:40,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1958 [2020-10-13 06:03:40,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:40,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:40,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-13 06:03:40,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:03:40,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:40,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:40,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:40,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:40,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:40,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:40,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:40,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:40,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:40,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:40,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:40,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:40,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:40,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:40,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:40,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:40,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:40,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:40,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:03:40,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:40,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:40,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:40,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:40,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:40,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:03:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:40,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:40,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:40,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:03:40,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:40,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:03:40,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:40,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:40,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:40,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:03:40,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:40,761 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-13 06:03:40,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1915249712] [2020-10-13 06:03:40,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:40,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:03:40,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140067425] [2020-10-13 06:03:40,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:03:40,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:40,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:03:40,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:03:40,763 INFO L87 Difference]: Start difference. First operand 395 states and 417 transitions. Second operand 14 states. [2020-10-13 06:03:41,482 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-13 06:03:41,693 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-13 06:03:41,915 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-13 06:03:42,148 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-13 06:03:42,486 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-13 06:03:42,721 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-10-13 06:03:42,968 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-10-13 06:03:43,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:43,583 INFO L93 Difference]: Finished difference Result 790 states and 841 transitions. [2020-10-13 06:03:43,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:03:43,583 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 215 [2020-10-13 06:03:43,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:43,586 INFO L225 Difference]: With dead ends: 790 [2020-10-13 06:03:43,586 INFO L226 Difference]: Without dead ends: 414 [2020-10-13 06:03:43,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=182, Invalid=418, Unknown=0, NotChecked=0, Total=600 [2020-10-13 06:03:43,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2020-10-13 06:03:43,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 410. [2020-10-13 06:03:43,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-10-13 06:03:43,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 433 transitions. [2020-10-13 06:03:43,599 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 433 transitions. Word has length 215 [2020-10-13 06:03:43,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:43,600 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 433 transitions. [2020-10-13 06:03:43,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:03:43,600 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 433 transitions. [2020-10-13 06:03:43,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-13 06:03:43,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:43,602 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 06:03:43,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:03:43,602 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:43,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:43,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1049500746, now seen corresponding path program 1 times [2020-10-13 06:03:43,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:43,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070500615] [2020-10-13 06:03:43,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:43,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:43,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:43,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:43,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:43,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:44,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:45,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:47,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:47,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-13 06:03:47,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:03:47,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3835 [2020-10-13 06:03:47,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:47,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:47,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-10-13 06:03:47,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:03:47,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:48,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:48,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:48,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:48,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:48,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:48,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:48,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:48,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:48,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:48,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:48,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:48,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:48,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:48,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:48,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:48,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:48,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:48,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:03:48,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:48,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:48,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:48,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:48,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:48,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:03:48,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:48,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:48,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:48,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:03:48,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:48,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:48,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:48,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:48,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:48,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:48,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:48,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:03:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:48,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:48,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:48,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:03:48,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:48,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:48,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:48,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:48,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:48,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:03:48,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:48,693 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 121 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-13 06:03:48,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070500615] [2020-10-13 06:03:48,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:48,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:03:48,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084165196] [2020-10-13 06:03:48,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:03:48,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:48,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:03:48,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:03:48,697 INFO L87 Difference]: Start difference. First operand 410 states and 433 transitions. Second operand 14 states. [2020-10-13 06:03:49,427 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2020-10-13 06:03:49,713 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 102 [2020-10-13 06:03:50,022 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 101 [2020-10-13 06:03:50,314 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 98 [2020-10-13 06:03:50,595 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2020-10-13 06:03:51,020 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 96 [2020-10-13 06:03:51,402 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 92 [2020-10-13 06:03:51,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:51,916 INFO L93 Difference]: Finished difference Result 831 states and 886 transitions. [2020-10-13 06:03:51,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:03:51,917 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 228 [2020-10-13 06:03:51,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:51,920 INFO L225 Difference]: With dead ends: 831 [2020-10-13 06:03:51,920 INFO L226 Difference]: Without dead ends: 429 [2020-10-13 06:03:51,921 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=169, Invalid=383, Unknown=0, NotChecked=0, Total=552 [2020-10-13 06:03:51,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-10-13 06:03:51,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 425. [2020-10-13 06:03:51,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2020-10-13 06:03:51,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 449 transitions. [2020-10-13 06:03:51,932 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 449 transitions. Word has length 228 [2020-10-13 06:03:51,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:51,933 INFO L479 AbstractCegarLoop]: Abstraction has 425 states and 449 transitions. [2020-10-13 06:03:51,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:03:51,933 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 449 transitions. [2020-10-13 06:03:51,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-10-13 06:03:51,935 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:51,935 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:51,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:03:51,936 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:51,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:51,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1961903568, now seen corresponding path program 1 times [2020-10-13 06:03:51,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:51,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2070876708] [2020-10-13 06:03:51,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:51,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:52,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:52,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:52,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:52,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:52,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-10-13 06:03:52,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:03:52,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 659 [2020-10-13 06:03:52,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:52,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:52,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 06:03:52,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:03:52,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:52,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:52,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:52,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:52,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:52,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:52,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:03:52,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:52,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:52,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:52,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:52,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:52,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:52,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:52,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:52,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:52,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:52,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:03:52,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:52,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:52,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:52,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:52,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:52,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:03:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:52,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:52,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:52,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:03:52,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:52,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:03:52,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:52,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:52,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:52,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:52,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:52,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:03:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:52,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:52,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:52,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:03:52,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:52,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:03:52,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:52,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:52,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:52,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:52,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:52,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:03:52,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:52,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:52,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:52,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:03:52,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:52,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:03:52,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:52,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:52,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:52,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:52,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:52,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:03:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:52,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:52,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:52,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:03:52,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:52,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:03:52,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:52,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:52,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:52,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:03:52,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:53,076 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 154 proven. 5 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-10-13 06:03:53,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2070876708] [2020-10-13 06:03:53,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:53,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:03:53,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506230340] [2020-10-13 06:03:53,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:03:53,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:53,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:03:53,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:03:53,078 INFO L87 Difference]: Start difference. First operand 425 states and 449 transitions. Second operand 7 states. [2020-10-13 06:03:53,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:53,993 INFO L93 Difference]: Finished difference Result 865 states and 922 transitions. [2020-10-13 06:03:53,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:03:53,994 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 263 [2020-10-13 06:03:53,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:53,997 INFO L225 Difference]: With dead ends: 865 [2020-10-13 06:03:53,998 INFO L226 Difference]: Without dead ends: 427 [2020-10-13 06:03:53,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:03:53,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-10-13 06:03:54,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 425. [2020-10-13 06:03:54,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2020-10-13 06:03:54,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 448 transitions. [2020-10-13 06:03:54,011 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 448 transitions. Word has length 263 [2020-10-13 06:03:54,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:54,011 INFO L479 AbstractCegarLoop]: Abstraction has 425 states and 448 transitions. [2020-10-13 06:03:54,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:03:54,012 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 448 transitions. [2020-10-13 06:03:54,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-10-13 06:03:54,013 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:54,014 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:54,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:03:54,014 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:54,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:54,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1991760638, now seen corresponding path program 1 times [2020-10-13 06:03:54,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:54,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095311118] [2020-10-13 06:03:54,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:54,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:54,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:54,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:54,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:55,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:55,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 286 [2020-10-13 06:03:55,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:03:55,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1420 [2020-10-13 06:03:55,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:55,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:55,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-13 06:03:55,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 06:03:55,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:55,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:55,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:55,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:55,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:55,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:55,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:03:55,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:55,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:55,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:55,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:55,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:55,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:55,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:55,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:55,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:55,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:55,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:55,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 06:03:55,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:55,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:55,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:55,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:55,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:55,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:03:55,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:55,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:55,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:55,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:03:55,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:55,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:03:55,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:55,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:55,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:55,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:55,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:55,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:03:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:55,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:55,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:55,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:03:55,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:55,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:03:55,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:55,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:55,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:55,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:55,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:55,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:03:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:55,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:55,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:55,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:03:55,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:55,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:03:55,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:55,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:55,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:55,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:03:55,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:55,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:03:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:55,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:55,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:55,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 06:03:55,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:55,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 06:03:55,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:55,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:55,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:03:55,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 06:03:55,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:56,012 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 233 proven. 2 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-13 06:03:56,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1095311118] [2020-10-13 06:03:56,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:56,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:03:56,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113688486] [2020-10-13 06:03:56,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:03:56,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:56,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:03:56,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:03:56,016 INFO L87 Difference]: Start difference. First operand 425 states and 448 transitions. Second operand 7 states. [2020-10-13 06:03:57,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:57,010 INFO L93 Difference]: Finished difference Result 925 states and 989 transitions. [2020-10-13 06:03:57,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 06:03:57,011 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 268 [2020-10-13 06:03:57,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:57,014 INFO L225 Difference]: With dead ends: 925 [2020-10-13 06:03:57,014 INFO L226 Difference]: Without dead ends: 566 [2020-10-13 06:03:57,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:03:57,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2020-10-13 06:03:57,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 562. [2020-10-13 06:03:57,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2020-10-13 06:03:57,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 588 transitions. [2020-10-13 06:03:57,029 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 588 transitions. Word has length 268 [2020-10-13 06:03:57,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:57,030 INFO L479 AbstractCegarLoop]: Abstraction has 562 states and 588 transitions. [2020-10-13 06:03:57,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:03:57,030 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 588 transitions. [2020-10-13 06:03:57,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-10-13 06:03:57,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:57,033 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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 06:03:57,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:03:57,033 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:57,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:57,034 INFO L82 PathProgramCache]: Analyzing trace with hash 694982411, now seen corresponding path program 1 times [2020-10-13 06:03:57,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:57,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138647908] [2020-10-13 06:03:57,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:57,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:57,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:57,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:57,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:57,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-13 06:03:57,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:03:57,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-10-13 06:03:57,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:57,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:57,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:03:57,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 06:03:57,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:57,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:57,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:57,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:57,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:57,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:57,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:57,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:57,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:57,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:57,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:57,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:57,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:57,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:57,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:57,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:57,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:57,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:57,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:03:57,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:57,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:57,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:57,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:57,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:57,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:03:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:57,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:57,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:57,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:03:57,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:57,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:57,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:57,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:57,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:57,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:57,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:57,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:03:57,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:57,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:57,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:57,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:03:57,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:57,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:57,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:57,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:57,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:57,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:57,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:57,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:03:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:57,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:57,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:57,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:03:57,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:57,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:03:57,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:57,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:57,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:57,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:57,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:57,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:03:57,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:57,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:57,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:57,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:03:57,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:57,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:03:57,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:57,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:57,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:57,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:57,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:57,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:03:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:57,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:57,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:57,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 06:03:57,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:57,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:03:57,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:57,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:57,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:57,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:03:57,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:57,798 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 187 proven. 6 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-10-13 06:03:57,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138647908] [2020-10-13 06:03:57,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:57,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:03:57,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497435233] [2020-10-13 06:03:57,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:03:57,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:57,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:03:57,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:03:57,800 INFO L87 Difference]: Start difference. First operand 562 states and 588 transitions. Second operand 5 states. [2020-10-13 06:03:58,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:58,573 INFO L93 Difference]: Finished difference Result 997 states and 1049 transitions. [2020-10-13 06:03:58,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:03:58,573 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 297 [2020-10-13 06:03:58,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:58,574 INFO L225 Difference]: With dead ends: 997 [2020-10-13 06:03:58,574 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:03:58,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 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 06:03:58,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:03:58,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:03:58,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:03:58,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:03:58,577 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 297 [2020-10-13 06:03:58,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:58,578 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:03:58,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:03:58,578 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:03:58,578 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:03:58,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 06:03:58,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:03:59,127 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 178 [2020-10-13 06:03:59,329 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 168 [2020-10-13 06:03:59,513 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 47 [2020-10-13 06:04:02,442 WARN L193 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 293 DAG size of output: 191 [2020-10-13 06:04:03,766 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 190 DAG size of output: 125 [2020-10-13 06:04:04,688 WARN L193 SmtUtils]: Spent 919.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 92 [2020-10-13 06:04:04,693 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:04:04,693 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-13 06:04:04,693 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:04:04,694 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-13 06:04:04,694 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-13 06:04:04,694 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,694 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,694 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,694 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,695 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,695 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,695 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-13 06:04:04,695 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-13 06:04:04,695 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-13 06:04:04,695 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-13 06:04:04,695 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-13 06:04:04,696 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-13 06:04:04,696 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-13 06:04:04,696 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-13 06:04:04,696 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-13 06:04:04,696 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-13 06:04:04,696 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,696 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,696 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,696 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,697 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,697 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,697 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-13 06:04:04,697 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-13 06:04:04,697 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-13 06:04:04,697 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-13 06:04:04,697 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-13 06:04:04,697 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-13 06:04:04,697 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-13 06:04:04,698 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-13 06:04:04,698 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-13 06:04:04,698 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-13 06:04:04,698 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-13 06:04:04,698 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 461) no Hoare annotation was computed. [2020-10-13 06:04:04,698 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-13 06:04:04,698 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-13 06:04:04,698 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-13 06:04:04,698 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-13 06:04:04,699 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,699 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,699 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,699 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,699 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,699 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-13 06:04:04,699 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-13 06:04:04,699 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-13 06:04:04,699 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-13 06:04:04,700 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-13 06:04:04,700 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-13 06:04:04,700 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-13 06:04:04,700 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-13 06:04:04,700 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-13 06:04:04,700 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,700 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,700 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,700 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,701 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,701 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-13 06:04:04,701 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-13 06:04:04,701 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-13 06:04:04,701 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-13 06:04:04,701 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-13 06:04:04,701 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-13 06:04:04,701 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-13 06:04:04,702 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-13 06:04:04,702 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-13 06:04:04,702 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-13 06:04:04,702 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-13 06:04:04,702 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-13 06:04:04,702 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-13 06:04:04,702 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,702 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,702 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,703 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,703 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,703 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-13 06:04:04,703 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-13 06:04:04,703 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-13 06:04:04,703 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-13 06:04:04,703 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-13 06:04:04,703 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-13 06:04:04,703 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-13 06:04:04,704 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-13 06:04:04,704 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-13 06:04:04,704 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,704 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,704 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,704 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,704 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,704 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,705 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-13 06:04:04,705 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,705 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-13 06:04:04,705 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-13 06:04:04,705 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-13 06:04:04,705 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-13 06:04:04,705 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-13 06:04:04,705 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-13 06:04:04,705 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-13 06:04:04,705 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-13 06:04:04,706 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-13 06:04:04,706 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-13 06:04:04,706 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-13 06:04:04,706 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-13 06:04:04,706 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-13 06:04:04,706 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,706 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,706 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,706 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,706 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,707 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-13 06:04:04,707 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-13 06:04:04,707 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-13 06:04:04,707 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-13 06:04:04,707 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-13 06:04:04,707 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-13 06:04:04,707 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-13 06:04:04,707 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-13 06:04:04,708 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,708 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,708 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,708 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,708 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,708 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-13 06:04:04,709 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-13 06:04:04,709 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-13 06:04:04,709 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-13 06:04:04,709 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-13 06:04:04,709 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-13 06:04:04,709 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-13 06:04:04,709 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-13 06:04:04,709 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-13 06:04:04,710 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-13 06:04:04,711 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse35 (= 15 |old(~a8~0)|)) (.cse19 (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|)))) (.cse22 (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1)))) (.cse33 (not (<= |old(~a20~0)| 0))) (.cse14 (not (<= |old(~a7~0)| 0))) (.cse17 (not (= |calculate_output_#in~input| 3))) (.cse18 (not (= |calculate_output_#in~input| 2))) (.cse20 (not (= |calculate_output_#in~input| 4))) (.cse21 (not (= |calculate_output_#in~input| 5))) (.cse0 (= ~a7~0 |old(~a7~0)|)) (.cse1 (= ~a17~0 |old(~a17~0)|)) (.cse2 (= ~a21~0 1)) (.cse3 (= ~a20~0 |old(~a20~0)|)) (.cse27 (= ~a16~0 |old(~a16~0)|)) (.cse4 (= ~a8~0 15))) (let ((.cse5 (= 5 ~a16~0)) (.cse13 (not (= |old(~a17~0)| 1))) (.cse15 (not (= 6 |old(~a16~0)|))) (.cse16 (and .cse0 .cse1 .cse2 .cse3 .cse27 .cse4)) (.cse7 (and .cse17 .cse18 .cse20 (not (= |calculate_output_#in~input| 1)) .cse21 (not (= |calculate_output_#in~input| 6)))) (.cse34 (= ~a21~0 |old(~a21~0)|)) (.cse6 (not (= 5 |old(~a16~0)|))) (.cse23 (and .cse14 (not (<= 2 |old(~a7~0)|)))) (.cse36 (not (< 0 |old(~a17~0)|))) (.cse37 (and (not (<= 2 |old(~a20~0)|)) .cse33)) (.cse24 (not (<= |old(~a8~0)| 15))) (.cse28 (<= ~a8~0 15)) (.cse29 (<= 15 ~a8~0)) (.cse26 (not (<= 15 |old(~a8~0)|))) (.cse38 (not (<= |old(~a17~0)| 1))) (.cse25 (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| 2)) (not (<= 2 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) .cse19 .cse22)) (.cse30 (not (= |old(~a17~0)| |old(~a20~0)|))) (.cse11 (= |old(~a7~0)| 1)) (.cse31 (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~a16~0 4))) (.cse8 (not .cse35)) (.cse9 (not (= |old(~a21~0)| 1))) (.cse10 (not (= ~a12~0 8))) (.cse32 (not (= 4 |old(~a16~0)|))) (.cse12 (not (= 0 |old(~a17~0)|)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12) (or .cse13 (and .cse0 .cse3 (<= ~a20~0 ~a17~0) (<= ~a17~0 ~a20~0) .cse4 (<= ~a21~0 ~a20~0) .cse5 (<= ~a20~0 ~a21~0)) .cse14 (not (<= |old(~a20~0)| |old(~a21~0)|)) .cse6 .cse7 (not (<= |old(~a17~0)| |old(~a20~0)|)) .cse8 .cse9 .cse10) (or (not (<= (+ |old(~a17~0)| 1) |old(~a21~0)|)) .cse15 .cse16 (and .cse17 .cse18 .cse19 .cse20 .cse21 .cse22) .cse8 .cse9 .cse10 .cse11) (or .cse23 (not (<= |old(~a16~0)| 6)) (not (<= 2 |old(~a17~0)|)) .cse24 .cse25 (not (< 5 |old(~a16~0)|)) .cse26 .cse9 .cse10 (not (<= |old(~a20~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 .cse27 .cse28 .cse29) (not (< 0 |old(~a20~0)|))) (or .cse30 .cse31 .cse7 .cse8 .cse9 .cse10 .cse32 .cse12) (or .cse13 .cse15 .cse16 .cse7 .cse8 .cse9 .cse10 .cse33 .cse11) (or (not (= |old(~a8~0)| 13)) (and .cse1 .cse0 .cse34 .cse3 .cse27 (= ~a8~0 13))) (or .cse35 (and .cse1 .cse0 .cse34 .cse3 .cse27 (= ~a8~0 |old(~a8~0)|)) .cse9) (or .cse23 .cse36 (not (<= 5 |old(~a16~0)|)) .cse37 .cse24 .cse25 (not (<= |old(~a16~0)| 5)) .cse26 .cse38 (and .cse0 (< 0 ~a17~0) .cse3 .cse27 (<= ~a17~0 1) (<= ~a21~0 1) (<= 1 ~a21~0) .cse28 .cse29) .cse9 .cse10) (or (and .cse1 (= ~a21~0 ~a7~0) .cse2 .cse3 .cse27 .cse4) .cse30 .cse6 .cse8 .cse9 .cse10 (not (= |old(~a7~0)| |old(~a21~0)|)) .cse12) (or (not (<= 4 |old(~a16~0)|)) .cse23 .cse36 .cse37 .cse24 (and .cse0 .cse1 .cse2 .cse3 (<= ~a16~0 4) (<= 4 ~a16~0) .cse28 .cse29) .cse25 .cse26 (not (<= |old(~a16~0)| 4)) .cse38 .cse9 .cse10) (or .cse25 (not (= |old(~a20~0)| 1)) (not (<= |old(~a17~0)| 0)) .cse31 .cse8 .cse9 .cse10 .cse32 .cse11) (or .cse30 (not .cse11) .cse31 .cse8 .cse9 .cse10 .cse32 .cse12)))) [2020-10-13 06:04:04,711 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-13 06:04:04,711 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,711 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,711 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,712 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,712 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-13 06:04:04,712 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,712 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,712 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-13 06:04:04,712 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-13 06:04:04,712 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-13 06:04:04,712 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-13 06:04:04,713 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-13 06:04:04,713 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-13 06:04:04,713 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-13 06:04:04,713 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-13 06:04:04,713 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-13 06:04:04,713 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-13 06:04:04,713 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-13 06:04:04,713 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-13 06:04:04,714 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,714 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,714 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,714 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,714 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,714 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-13 06:04:04,714 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,714 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-13 06:04:04,715 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-13 06:04:04,715 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-13 06:04:04,715 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-13 06:04:04,715 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-13 06:04:04,715 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-13 06:04:04,715 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-13 06:04:04,715 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-13 06:04:04,716 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-13 06:04:04,716 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-13 06:04:04,716 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-13 06:04:04,716 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-13 06:04:04,717 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-13 06:04:04,717 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-13 06:04:04,717 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,717 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,717 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,718 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,718 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,718 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:04:04,718 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-13 06:04:04,718 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-13 06:04:04,718 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-13 06:04:04,718 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-13 06:04:04,718 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-13 06:04:04,718 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-13 06:04:04,719 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-13 06:04:04,719 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-13 06:04:04,719 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-13 06:04:04,719 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-13 06:04:04,719 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:04:04,719 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~a20~0) (= ~a12~0 8) (<= ~a7~0 0) (<= ~a21~0 ~a20~0) (<= ~a20~0 1) (= 5 ~a16~0) (<= ~a8~0 15) (<= ~a20~0 ~a21~0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-10-13 06:04:04,719 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:04:04,719 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:04:04,720 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a7~0)| 0)) (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a20~0)| |old(~a21~0)|)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (not (<= 1 |old(~a20~0)|)) (not (= ~a12~0 8)) (and (= ~a7~0 |old(~a7~0)|) (= ~a20~0 |old(~a20~0)|) (<= ~a20~0 ~a17~0) (<= ~a17~0 ~a20~0) (<= ~a21~0 ~a20~0) (= 5 ~a16~0) (<= ~a8~0 15) (<= ~a20~0 ~a21~0) (<= 15 ~a8~0))) [2020-10-13 06:04:04,720 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:04:04,720 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse15 (<= ~a20~0 0)) (.cse5 (= 5 main_~input~0)) (.cse6 (= main_~input~0 4)) (.cse7 (= 3 main_~input~0)) (.cse8 (= 2 main_~input~0)) (.cse14 (= ~a7~0 1))) (let ((.cse9 (= ~a16~0 6)) (.cse3 (= 5 ~a16~0)) (.cse2 (not .cse14)) (.cse16 (<= ~a20~0 ~a21~0)) (.cse0 (= ~a21~0 1)) (.cse13 (= ~a20~0 ~a17~0)) (.cse1 (or .cse5 (= 6 main_~input~0) .cse6 .cse7 (= main_~input~0 1) .cse8)) (.cse18 (= ~a16~0 4)) (.cse4 (= ~a17~0 0)) (.cse19 (<= 1 ~a17~0)) (.cse20 (or (< 1 ~a20~0) .cse15)) (.cse17 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 2 main_~input~0) (<= main_~input~0 2)) (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)))) (.cse10 (or (< 1 ~a7~0) (<= ~a7~0 0))) (.cse21 (<= ~a17~0 1)) (.cse11 (<= ~a21~0 1)) (.cse12 (<= 1 ~a21~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a7~0)| 0)) (and (<= (+ ~a17~0 1) ~a21~0) (or .cse5 (= ~a16~0 main_~input~0) .cse6 .cse7 (= ~a21~0 main_~input~0) .cse8) .cse9 .cse10 .cse11 .cse12) (and .cse0 .cse13 .cse14 .cse3 .cse4) (not (= |old(~a21~0)| 1)) (and .cse0 .cse9 .cse1 .cse2 (= ~a17~0 1) .cse15) (not (<= |old(~a17~0)| |old(~a20~0)|)) (not (<= |old(~a20~0)| 1)) (not (= |old(~a17~0)| 1)) (and .cse0 (not (= ~a8~0 15))) (not (<= 15 |old(~a8~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a20~0 |old(~a20~0)|) .cse1 (<= ~a20~0 ~a17~0) (<= ~a17~0 ~a20~0) (<= ~a21~0 ~a20~0) .cse3 .cse16) (and (<= ~a16~0 6) (<= 1 ~a20~0) (<= 6 ~a16~0) .cse17 .cse10 .cse11 (<= ~a20~0 1) .cse12 (< 1 ~a17~0)) (and .cse0 .cse13 .cse14 .cse18 .cse4) (and .cse17 (<= ~a17~0 0) (= ~a20~0 1) .cse18 .cse11 .cse2 .cse16) (= ~a8~0 13) (and .cse19 (<= ~a16~0 5) .cse20 .cse17 .cse10 .cse21 .cse11 (<= 5 ~a16~0) .cse12) (and .cse0 .cse13 .cse1 .cse18 .cse4) (not (= 5 |old(~a16~0)|)) (and .cse19 (<= ~a16~0 4) .cse20 .cse17 (<= 4 ~a16~0) .cse10 .cse21 .cse11 .cse12) (not (= ~a12~0 8))))) [2020-10-13 06:04:04,720 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-13 06:04:04,721 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-13 06:04:04,721 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse11 (<= ~a20~0 0))) (let ((.cse3 (= ~a16~0 4)) (.cse12 (= ~a20~0 ~a17~0)) (.cse9 (= ~a21~0 1)) (.cse4 (not (= ~a7~0 1))) (.cse13 (= ~a17~0 0)) (.cse6 (<= 1 ~a17~0)) (.cse7 (or (< 1 ~a20~0) .cse11)) (.cse8 (<= ~a17~0 1)) (.cse10 (= ~a16~0 6)) (.cse0 (or (< 1 ~a7~0) (<= ~a7~0 0))) (.cse1 (<= ~a21~0 1)) (.cse2 (<= 1 ~a21~0)) (.cse14 (= 5 ~a16~0)) (.cse5 (<= ~a20~0 ~a21~0))) (or (and (<= ~a16~0 6) (<= 1 ~a20~0) (<= 6 ~a16~0) .cse0 .cse1 (<= ~a20~0 1) .cse2 (< 1 ~a17~0)) (not (<= |old(~a8~0)| 15)) (and (<= ~a17~0 0) (= ~a20~0 1) .cse3 .cse1 .cse4 .cse5) (not (<= |old(~a7~0)| 0)) (and .cse6 (<= ~a16~0 4) .cse7 (<= 4 ~a16~0) .cse0 .cse8 .cse1 .cse2) (not (= |old(~a21~0)| 1)) (not (<= |old(~a17~0)| |old(~a20~0)|)) (not (<= |old(~a20~0)| 1)) (not (= |old(~a17~0)| 1)) (and .cse9 (not (= ~a8~0 15))) (and .cse9 .cse10 .cse4 (= ~a17~0 1) .cse11) (not (<= 15 |old(~a8~0)|)) (and .cse9 .cse12 .cse3 .cse13) (= ~a8~0 13) (and .cse9 .cse12 .cse14 .cse13) (and .cse9 .cse4 .cse14 .cse13) (and .cse6 (<= ~a16~0 5) .cse7 .cse0 .cse8 .cse1 (<= 5 ~a16~0) .cse2) (not (= 5 |old(~a16~0)|)) (and (<= (+ ~a17~0 1) ~a21~0) .cse10 .cse0 .cse1 .cse2) (and (= ~a7~0 |old(~a7~0)|) (= ~a20~0 |old(~a20~0)|) (<= ~a20~0 ~a17~0) (<= ~a17~0 ~a20~0) (<= ~a21~0 ~a20~0) .cse14 .cse5) (not (= ~a12~0 8))))) [2020-10-13 06:04:04,721 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:04:04,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:04:04 BoogieIcfgContainer [2020-10-13 06:04:04,747 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:04:04,748 INFO L168 Benchmark]: Toolchain (without parser) took 112238.07 ms. Allocated memory was 139.5 MB in the beginning and 1.1 GB in the end (delta: 944.2 MB). Free memory was 100.5 MB in the beginning and 504.4 MB in the end (delta: -403.9 MB). Peak memory consumption was 931.7 MB. Max. memory is 7.1 GB. [2020-10-13 06:04:04,749 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 06:04:04,749 INFO L168 Benchmark]: CACSL2BoogieTranslator took 792.08 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 100.3 MB in the beginning and 170.3 MB in the end (delta: -70.0 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. [2020-10-13 06:04:04,750 INFO L168 Benchmark]: Boogie Preprocessor took 96.51 ms. Allocated memory is still 204.5 MB. Free memory was 170.3 MB in the beginning and 164.6 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. [2020-10-13 06:04:04,750 INFO L168 Benchmark]: RCFGBuilder took 1334.13 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 164.6 MB in the beginning and 179.4 MB in the end (delta: -14.8 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. [2020-10-13 06:04:04,751 INFO L168 Benchmark]: TraceAbstraction took 110006.46 ms. Allocated memory was 237.5 MB in the beginning and 1.1 GB in the end (delta: 846.2 MB). Free memory was 179.4 MB in the beginning and 504.4 MB in the end (delta: -324.9 MB). Peak memory consumption was 912.6 MB. Max. memory is 7.1 GB. [2020-10-13 06:04:04,753 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 792.08 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 100.3 MB in the beginning and 170.3 MB in the end (delta: -70.0 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.51 ms. Allocated memory is still 204.5 MB. Free memory was 170.3 MB in the beginning and 164.6 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1334.13 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 164.6 MB in the beginning and 179.4 MB in the end (delta: -14.8 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 110006.46 ms. Allocated memory was 237.5 MB in the beginning and 1.1 GB in the end (delta: 846.2 MB). Free memory was 179.4 MB in the beginning and 504.4 MB in the end (delta: -324.9 MB). Peak memory consumption was 912.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 461]: 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: 583]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((a16 <= 6 && 1 <= a20) && 6 <= a16) && (1 < a7 || a7 <= 0)) && a21 <= 1) && a20 <= 1) && 1 <= a21) && 1 < a17) || !(\old(a8) <= 15)) || (((((a17 <= 0 && a20 == 1) && a16 == 4) && a21 <= 1) && !(a7 == 1)) && a20 <= a21)) || !(\old(a7) <= 0)) || (((((((1 <= a17 && a16 <= 4) && (1 < a20 || a20 <= 0)) && 4 <= a16) && (1 < a7 || a7 <= 0)) && a17 <= 1) && a21 <= 1) && 1 <= a21)) || !(\old(a21) == 1)) || !(\old(a17) <= \old(a20))) || !(\old(a20) <= 1)) || !(\old(a17) == 1)) || (a21 == 1 && !(a8 == 15))) || ((((a21 == 1 && a16 == 6) && !(a7 == 1)) && a17 == 1) && a20 <= 0)) || !(15 <= \old(a8))) || (((a21 == 1 && a20 == a17) && a16 == 4) && a17 == 0)) || a8 == 13) || (((a21 == 1 && a20 == a17) && 5 == a16) && a17 == 0)) || (((a21 == 1 && !(a7 == 1)) && 5 == a16) && a17 == 0)) || (((((((1 <= a17 && a16 <= 5) && (1 < a20 || a20 <= 0)) && (1 < a7 || a7 <= 0)) && a17 <= 1) && a21 <= 1) && 5 <= a16) && 1 <= a21)) || !(5 == \old(a16))) || ((((a17 + 1 <= a21 && a16 == 6) && (1 < a7 || a7 <= 0)) && a21 <= 1) && 1 <= a21)) || ((((((a7 == \old(a7) && a20 == \old(a20)) && a20 <= a17) && a17 <= a20) && a21 <= a20) && 5 == a16) && a20 <= a21)) || !(a12 == 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 103.7s, OverallIterations: 19, TraceHistogramMax: 7, AutomataDifference: 46.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 503 SDtfs, 7142 SDslu, 837 SDs, 0 SdLazy, 15898 SolverSat, 951 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 494 GetRequests, 179 SyntacticMatches, 8 SemanticMatches, 307 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 785 ImplicationChecksByTransitivity, 34.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=732occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 19 MinimizatonAttempts, 229 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 117 PreInvPairs, 152 NumberOfFragments, 1979 HoareAnnotationTreeSize, 117 FomulaSimplifications, 3541 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4421 FormulaSimplificationTreeSizeReductionInter, 5.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 53.6s InterpolantComputationTime, 3421 NumberOfCodeBlocks, 3421 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 3402 ConstructedInterpolants, 0 QuantifiedInterpolants, 8130043 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 2476/2519 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...