/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label15.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:09:47,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:09:47,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:09:47,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:09:47,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:09:47,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:09:47,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:09:47,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:09:47,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:09:47,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:09:47,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:09:47,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:09:47,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:09:47,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:09:47,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:09:47,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:09:47,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:09:47,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:09:47,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:09:47,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:09:47,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:09:47,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:09:47,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:09:47,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:09:47,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:09:47,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:09:47,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:09:47,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:09:47,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:09:47,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:09:47,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:09:47,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:09:47,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:09:47,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:09:47,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:09:47,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:09:47,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:09:47,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:09:47,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:09:47,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:09:47,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:09:47,185 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 06:09:47,226 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:09:47,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:09:47,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:09:47,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:09:47,228 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:09:47,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:09:47,229 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:09:47,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:09:47,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:09:47,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:09:47,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:09:47,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:09:47,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:09:47,231 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:09:47,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:09:47,232 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:09:47,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:09:47,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:09:47,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:09:47,233 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:09:47,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:09:47,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:09:47,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:09:47,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:09:47,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:09:47,234 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:09:47,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:09:47,234 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:09:47,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:09:47,234 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 06:09:47,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:09:47,583 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:09:47,587 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:09:47,589 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:09:47,589 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:09:47,590 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label15.c [2020-10-13 06:09:47,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2075b13cb/e206dd0727ef41459cc739829d0e5808/FLAGeb57569a1 [2020-10-13 06:09:48,171 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:09:48,172 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label15.c [2020-10-13 06:09:48,186 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2075b13cb/e206dd0727ef41459cc739829d0e5808/FLAGeb57569a1 [2020-10-13 06:09:48,503 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2075b13cb/e206dd0727ef41459cc739829d0e5808 [2020-10-13 06:09:48,511 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:09:48,513 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:09:48,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:09:48,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:09:48,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:09:48,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:09:48" (1/1) ... [2020-10-13 06:09:48,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72dcb5c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:48, skipping insertion in model container [2020-10-13 06:09:48,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:09:48" (1/1) ... [2020-10-13 06:09:48,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:09:48,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:09:49,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:09:49,092 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:09:49,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:09:49,232 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:09:49,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:49 WrapperNode [2020-10-13 06:09:49,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:09:49,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:09:49,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:09:49,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:09:49,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:49" (1/1) ... [2020-10-13 06:09:49,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:49" (1/1) ... [2020-10-13 06:09:49,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:49" (1/1) ... [2020-10-13 06:09:49,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:49" (1/1) ... [2020-10-13 06:09:49,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:49" (1/1) ... [2020-10-13 06:09:49,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:49" (1/1) ... [2020-10-13 06:09:49,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:49" (1/1) ... [2020-10-13 06:09:49,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:09:49,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:09:49,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:09:49,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:09:49,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:49" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:09:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:09:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:09:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:09:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:09:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:09:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:09:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:09:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:09:49,423 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:09:49,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:09:49,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:09:50,560 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:09:50,560 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:09:50,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:09:50 BoogieIcfgContainer [2020-10-13 06:09:50,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:09:50,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:09:50,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:09:50,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:09:50,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:09:48" (1/3) ... [2020-10-13 06:09:50,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a0a6d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:09:50, skipping insertion in model container [2020-10-13 06:09:50,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:49" (2/3) ... [2020-10-13 06:09:50,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a0a6d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:09:50, skipping insertion in model container [2020-10-13 06:09:50,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:09:50" (3/3) ... [2020-10-13 06:09:50,574 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label15.c [2020-10-13 06:09:50,584 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:09:50,591 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:09:50,604 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:09:50,629 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:09:50,629 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:09:50,630 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:09:50,630 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:09:50,630 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:09:50,630 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:09:50,631 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:09:50,631 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:09:50,654 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-10-13 06:09:50,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-13 06:09:50,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:50,670 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:50,671 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:50,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:50,677 INFO L82 PathProgramCache]: Analyzing trace with hash 265542486, now seen corresponding path program 1 times [2020-10-13 06:09:50,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:50,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [673851863] [2020-10-13 06:09:50,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:51,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:51,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:52,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:52,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-13 06:09:52,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:09:52,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1158 [2020-10-13 06:09:52,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:52,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 06:09:52,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:09:52,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:09:52,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:09:52,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:52,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:52,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:52,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:52,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:52,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:09:52,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:52,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:52,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:52,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:09:52,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:52,847 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 06:09:52,849 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [673851863] [2020-10-13 06:09:52,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:09:52,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 06:09:52,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694112405] [2020-10-13 06:09:52,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 06:09:52,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:52,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 06:09:52,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:09:52,884 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 11 states. [2020-10-13 06:09:53,528 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2020-10-13 06:09:53,772 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2020-10-13 06:09:54,216 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-10-13 06:09:54,652 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2020-10-13 06:09:55,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:55,628 INFO L93 Difference]: Finished difference Result 536 states and 892 transitions. [2020-10-13 06:09:55,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:09:55,631 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2020-10-13 06:09:55,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:55,648 INFO L225 Difference]: With dead ends: 536 [2020-10-13 06:09:55,648 INFO L226 Difference]: Without dead ends: 236 [2020-10-13 06:09:55,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:09:55,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-13 06:09:55,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-13 06:09:55,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-13 06:09:55,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 323 transitions. [2020-10-13 06:09:55,737 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 323 transitions. Word has length 136 [2020-10-13 06:09:55,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:55,738 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 323 transitions. [2020-10-13 06:09:55,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 06:09:55,738 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 323 transitions. [2020-10-13 06:09:55,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-13 06:09:55,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:55,743 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:55,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:09:55,744 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:55,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:55,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1544099655, now seen corresponding path program 1 times [2020-10-13 06:09:55,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:55,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1998617018] [2020-10-13 06:09:55,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:55,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:55,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:56,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:57,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:57,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-13 06:09:57,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:09:57,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1551 [2020-10-13 06:09:57,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:57,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:09:57,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 06:09:57,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:09:57,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:09:57,802 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 34 [2020-10-13 06:09:58,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:58,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:58,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:58,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:58,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:58,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:09:58,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:58,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:58,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:58,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:58,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:58,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:58,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:58,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:58,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:09:58,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:58,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:09:58,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:58,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:58,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:58,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 06:09:58,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:58,304 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:09:58,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1998617018] [2020-10-13 06:09:58,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:58,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:09:58,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697089826] [2020-10-13 06:09:58,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:09:58,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:58,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:09:58,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:09:58,308 INFO L87 Difference]: Start difference. First operand 233 states and 323 transitions. Second operand 12 states. [2020-10-13 06:10:00,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:00,308 INFO L93 Difference]: Finished difference Result 549 states and 794 transitions. [2020-10-13 06:10:00,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 06:10:00,308 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 145 [2020-10-13 06:10:00,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:00,315 INFO L225 Difference]: With dead ends: 549 [2020-10-13 06:10:00,315 INFO L226 Difference]: Without dead ends: 236 [2020-10-13 06:10:00,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:10:00,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-13 06:10:00,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-13 06:10:00,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-13 06:10:00,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 308 transitions. [2020-10-13 06:10:00,354 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 308 transitions. Word has length 145 [2020-10-13 06:10:00,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:00,355 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 308 transitions. [2020-10-13 06:10:00,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:10:00,355 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 308 transitions. [2020-10-13 06:10:00,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-13 06:10:00,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:00,363 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:00,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:10:00,363 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:00,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:00,364 INFO L82 PathProgramCache]: Analyzing trace with hash 32699839, now seen corresponding path program 1 times [2020-10-13 06:10:00,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:00,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963628017] [2020-10-13 06:10:00,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:00,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:00,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:01,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:01,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:01,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-13 06:10:01,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:10:01,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1468 [2020-10-13 06:10:01,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:01,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:10:01,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 06:10:01,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:10:01,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:02,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:02,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:02,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:02,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:02,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:02,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:10:02,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:02,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:02,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:02,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:02,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 06:10:02,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:02,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:02,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:02,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:02,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:10:02,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:02,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:10:02,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:02,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:02,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:02,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:10:02,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:02,331 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:10:02,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963628017] [2020-10-13 06:10:02,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:02,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:10:02,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681366203] [2020-10-13 06:10:02,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:10:02,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:02,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:10:02,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:10:02,334 INFO L87 Difference]: Start difference. First operand 233 states and 308 transitions. Second operand 12 states. [2020-10-13 06:10:04,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:04,060 INFO L93 Difference]: Finished difference Result 554 states and 772 transitions. [2020-10-13 06:10:04,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:10:04,061 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 149 [2020-10-13 06:10:04,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:04,066 INFO L225 Difference]: With dead ends: 554 [2020-10-13 06:10:04,066 INFO L226 Difference]: Without dead ends: 327 [2020-10-13 06:10:04,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-10-13 06:10:04,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-13 06:10:04,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 318. [2020-10-13 06:10:04,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-13 06:10:04,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 397 transitions. [2020-10-13 06:10:04,110 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 397 transitions. Word has length 149 [2020-10-13 06:10:04,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:04,110 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 397 transitions. [2020-10-13 06:10:04,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:10:04,111 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 397 transitions. [2020-10-13 06:10:04,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-13 06:10:04,118 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:04,118 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:04,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:10:04,118 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:04,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:04,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1173634025, now seen corresponding path program 1 times [2020-10-13 06:10:04,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:04,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1367342071] [2020-10-13 06:10:04,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:04,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:04,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:04,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:04,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:04,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 06:10:04,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:10:04,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 500 [2020-10-13 06:10:04,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:04,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:10:04,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-13 06:10:04,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-13 06:10:04,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:10:04,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:04,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:04,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:04,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:04,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:04,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:10:04,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:04,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:04,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:04,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:04,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:04,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:04,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:04,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:04,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:10:04,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:04,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:10:04,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:04,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:04,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:04,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:04,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:10:04,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 06:10:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:04,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:04,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:04,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 06:10:04,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:04,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:10:04,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:04,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:04,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:04,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 06:10:04,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:10:04,961 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:10:04,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1367342071] [2020-10-13 06:10:04,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:04,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:10:04,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668075820] [2020-10-13 06:10:04,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:10:04,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:04,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:10:04,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:10:04,964 INFO L87 Difference]: Start difference. First operand 318 states and 397 transitions. Second operand 5 states. [2020-10-13 06:10:05,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:05,961 INFO L93 Difference]: Finished difference Result 724 states and 951 transitions. [2020-10-13 06:10:05,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:10:05,962 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 171 [2020-10-13 06:10:05,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:05,965 INFO L225 Difference]: With dead ends: 724 [2020-10-13 06:10:05,966 INFO L226 Difference]: Without dead ends: 323 [2020-10-13 06:10:05,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:10:05,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-10-13 06:10:05,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 318. [2020-10-13 06:10:05,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-13 06:10:05,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 395 transitions. [2020-10-13 06:10:05,991 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 395 transitions. Word has length 171 [2020-10-13 06:10:05,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:05,991 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 395 transitions. [2020-10-13 06:10:05,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:10:05,992 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 395 transitions. [2020-10-13 06:10:05,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-13 06:10:05,994 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:05,994 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:05,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:10:05,995 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:05,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:05,995 INFO L82 PathProgramCache]: Analyzing trace with hash 144119254, now seen corresponding path program 1 times [2020-10-13 06:10:05,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:05,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1878542842] [2020-10-13 06:10:05,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:06,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:06,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:06,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:07,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:07,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 06:10:07,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:10:07,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1186 [2020-10-13 06:10:07,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:07,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:10:07,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-13 06:10:07,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:10:07,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:07,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:07,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:07,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:07,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:07,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:07,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:07,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:10:07,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:07,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:07,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:07,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:07,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:07,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:07,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:07,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:07,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:07,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:10:07,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:07,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 06:10:07,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:07,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:07,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:07,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:10:07,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:10:07,901 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:10:07,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1878542842] [2020-10-13 06:10:07,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:07,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:10:07,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120244688] [2020-10-13 06:10:07,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:10:07,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:07,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:10:07,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:10:07,904 INFO L87 Difference]: Start difference. First operand 318 states and 395 transitions. Second operand 12 states. [2020-10-13 06:10:08,299 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-13 06:10:08,424 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-13 06:10:09,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:09,712 INFO L93 Difference]: Finished difference Result 723 states and 948 transitions. [2020-10-13 06:10:09,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 06:10:09,713 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 170 [2020-10-13 06:10:09,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:09,716 INFO L225 Difference]: With dead ends: 723 [2020-10-13 06:10:09,717 INFO L226 Difference]: Without dead ends: 401 [2020-10-13 06:10:09,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2020-10-13 06:10:09,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-13 06:10:09,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 394. [2020-10-13 06:10:09,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-13 06:10:09,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 475 transitions. [2020-10-13 06:10:09,734 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 475 transitions. Word has length 170 [2020-10-13 06:10:09,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:09,735 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 475 transitions. [2020-10-13 06:10:09,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:10:09,735 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 475 transitions. [2020-10-13 06:10:09,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-13 06:10:09,738 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:09,738 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:09,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:10:09,738 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:09,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:09,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1709479921, now seen corresponding path program 1 times [2020-10-13 06:10:09,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:09,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [512132084] [2020-10-13 06:10:09,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:09,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:09,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:09,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:10,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:11,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:11,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-13 06:10:11,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:10:11,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1477 [2020-10-13 06:10:11,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:11,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:10:11,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-13 06:10:11,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 06:10:11,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:11,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:11,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:11,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:11,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:11,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:11,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:10:11,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:11,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:11,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:11,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:11,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:11,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:11,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:11,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:11,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:10:11,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:11,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:10:11,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:11,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:11,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:11,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:11,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:11,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 06:10:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:11,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:11,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:11,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:10:11,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:11,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:10:11,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:11,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:11,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:11,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:10:11,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:11,559 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 06:10:11,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [512132084] [2020-10-13 06:10:11,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:11,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:10:11,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207103490] [2020-10-13 06:10:11,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:10:11,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:11,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:10:11,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:10:11,562 INFO L87 Difference]: Start difference. First operand 394 states and 475 transitions. Second operand 5 states. [2020-10-13 06:10:12,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:12,531 INFO L93 Difference]: Finished difference Result 874 states and 1106 transitions. [2020-10-13 06:10:12,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:10:12,532 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 178 [2020-10-13 06:10:12,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:12,536 INFO L225 Difference]: With dead ends: 874 [2020-10-13 06:10:12,536 INFO L226 Difference]: Without dead ends: 399 [2020-10-13 06:10:12,538 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:10:12,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-10-13 06:10:12,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 394. [2020-10-13 06:10:12,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-13 06:10:12,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 472 transitions. [2020-10-13 06:10:12,564 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 472 transitions. Word has length 178 [2020-10-13 06:10:12,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:12,564 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 472 transitions. [2020-10-13 06:10:12,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:10:12,565 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 472 transitions. [2020-10-13 06:10:12,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-13 06:10:12,570 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:12,570 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:12,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:10:12,571 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:12,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:12,571 INFO L82 PathProgramCache]: Analyzing trace with hash -2119763156, now seen corresponding path program 1 times [2020-10-13 06:10:12,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:12,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2002993659] [2020-10-13 06:10:12,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:12,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:12,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:13,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:14,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:14,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-10-13 06:10:14,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:10:14,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1518 [2020-10-13 06:10:14,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:14,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:10:14,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-13 06:10:14,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:10:14,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:14,530 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2020-10-13 06:10:14,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:14,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:14,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:14,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:14,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:14,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:10:14,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:14,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:14,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:14,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:14,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:14,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:14,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:14,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:14,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:10:14,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:14,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 06:10:14,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:14,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:14,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:14,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:10:14,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:15,241 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 47 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:10:15,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2002993659] [2020-10-13 06:10:15,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:15,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:10:15,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974081801] [2020-10-13 06:10:15,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:10:15,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:15,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:10:15,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:10:15,245 INFO L87 Difference]: Start difference. First operand 394 states and 472 transitions. Second operand 12 states. [2020-10-13 06:10:15,736 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 06:10:17,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:17,631 INFO L93 Difference]: Finished difference Result 886 states and 1110 transitions. [2020-10-13 06:10:17,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 06:10:17,633 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 187 [2020-10-13 06:10:17,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:17,636 INFO L225 Difference]: With dead ends: 886 [2020-10-13 06:10:17,636 INFO L226 Difference]: Without dead ends: 498 [2020-10-13 06:10:17,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=155, Invalid=307, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:10:17,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2020-10-13 06:10:17,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 477. [2020-10-13 06:10:17,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2020-10-13 06:10:17,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 561 transitions. [2020-10-13 06:10:17,655 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 561 transitions. Word has length 187 [2020-10-13 06:10:17,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:17,656 INFO L479 AbstractCegarLoop]: Abstraction has 477 states and 561 transitions. [2020-10-13 06:10:17,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:10:17,656 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 561 transitions. [2020-10-13 06:10:17,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-13 06:10:17,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:17,659 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:17,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:10:17,660 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:17,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:17,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1159546176, now seen corresponding path program 1 times [2020-10-13 06:10:17,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:17,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1625527252] [2020-10-13 06:10:17,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:17,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:17,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:17,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:18,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:19,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:19,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-10-13 06:10:19,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:10:19,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1333 [2020-10-13 06:10:19,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:19,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:10:19,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-13 06:10:19,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:10:19,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:19,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:19,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:19,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:19,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:19,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:19,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:19,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:10:19,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:19,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:19,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:19,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:19,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:19,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:19,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:19,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:19,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:10:19,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:19,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:10:19,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:19,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:19,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:19,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-13 06:10:19,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:19,525 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:10:19,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1625527252] [2020-10-13 06:10:19,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:19,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:10:19,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462273224] [2020-10-13 06:10:19,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:10:19,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:19,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:10:19,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:10:19,527 INFO L87 Difference]: Start difference. First operand 477 states and 561 transitions. Second operand 12 states. [2020-10-13 06:10:21,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:21,288 INFO L93 Difference]: Finished difference Result 1040 states and 1272 transitions. [2020-10-13 06:10:21,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:10:21,289 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 193 [2020-10-13 06:10:21,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:21,293 INFO L225 Difference]: With dead ends: 1040 [2020-10-13 06:10:21,293 INFO L226 Difference]: Without dead ends: 569 [2020-10-13 06:10:21,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=128, Invalid=252, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:10:21,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2020-10-13 06:10:21,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 556. [2020-10-13 06:10:21,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-10-13 06:10:21,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 645 transitions. [2020-10-13 06:10:21,313 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 645 transitions. Word has length 193 [2020-10-13 06:10:21,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:21,314 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 645 transitions. [2020-10-13 06:10:21,314 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:10:21,314 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 645 transitions. [2020-10-13 06:10:21,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-13 06:10:21,317 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:21,317 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:21,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:10:21,318 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:21,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:21,318 INFO L82 PathProgramCache]: Analyzing trace with hash 729426698, now seen corresponding path program 1 times [2020-10-13 06:10:21,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:21,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1287319578] [2020-10-13 06:10:21,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:21,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:21,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:21,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:21,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:21,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:22,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:22,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-10-13 06:10:22,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:10:22,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1229 [2020-10-13 06:10:22,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:22,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:10:22,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-13 06:10:22,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 06:10:22,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:22,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:22,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:22,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:22,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:22,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:22,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:10:22,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:22,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:22,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:22,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:22,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:10:22,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:22,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:22,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:22,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:22,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:10:22,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:22,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:10:22,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:22,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:22,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:22,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:22,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:22,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 06:10:22,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:22,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:22,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:22,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 06:10:22,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:22,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 06:10:22,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:22,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:22,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:22,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 06:10:22,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:22,917 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:10:22,917 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1287319578] [2020-10-13 06:10:22,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:22,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:10:22,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497158900] [2020-10-13 06:10:22,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:10:22,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:22,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:10:22,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:10:22,919 INFO L87 Difference]: Start difference. First operand 556 states and 645 transitions. Second operand 5 states. [2020-10-13 06:10:23,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:23,936 INFO L93 Difference]: Finished difference Result 1203 states and 1454 transitions. [2020-10-13 06:10:23,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:10:23,937 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 218 [2020-10-13 06:10:23,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:23,940 INFO L225 Difference]: With dead ends: 1203 [2020-10-13 06:10:23,940 INFO L226 Difference]: Without dead ends: 464 [2020-10-13 06:10:23,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:10:23,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-10-13 06:10:23,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 457. [2020-10-13 06:10:23,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2020-10-13 06:10:23,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 533 transitions. [2020-10-13 06:10:23,958 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 533 transitions. Word has length 218 [2020-10-13 06:10:23,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:23,958 INFO L479 AbstractCegarLoop]: Abstraction has 457 states and 533 transitions. [2020-10-13 06:10:23,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:10:23,958 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 533 transitions. [2020-10-13 06:10:23,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-10-13 06:10:23,961 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:23,961 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:23,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:10:23,962 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:23,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:23,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1729001092, now seen corresponding path program 1 times [2020-10-13 06:10:23,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:23,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [649629061] [2020-10-13 06:10:23,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:24,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:24,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:24,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:24,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:25,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:25,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-10-13 06:10:25,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:10:25,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1854 [2020-10-13 06:10:25,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:25,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:10:25,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-13 06:10:25,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 06:10:25,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:26,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:26,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:26,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:26,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:26,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:26,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:10:26,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:26,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:26,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:26,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:26,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:26,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:26,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:26,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:26,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:10:26,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:26,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 06:10:26,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:26,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:26,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:26,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:26,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:26,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 06:10:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:26,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:26,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:26,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:10:26,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:26,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:10:26,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:26,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:26,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:26,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:10:26,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:26,428 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 88 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 06:10:26,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [649629061] [2020-10-13 06:10:26,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:26,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:10:26,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041213961] [2020-10-13 06:10:26,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:10:26,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:26,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:10:26,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:10:26,431 INFO L87 Difference]: Start difference. First operand 457 states and 533 transitions. Second operand 13 states. [2020-10-13 06:10:26,921 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-13 06:10:27,087 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2020-10-13 06:10:27,311 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2020-10-13 06:10:27,513 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-10-13 06:10:27,907 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-13 06:10:28,093 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-13 06:10:29,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:29,474 INFO L93 Difference]: Finished difference Result 1078 states and 1346 transitions. [2020-10-13 06:10:29,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 06:10:29,474 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 229 [2020-10-13 06:10:29,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:29,478 INFO L225 Difference]: With dead ends: 1078 [2020-10-13 06:10:29,478 INFO L226 Difference]: Without dead ends: 627 [2020-10-13 06:10:29,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=260, Invalid=610, Unknown=0, NotChecked=0, Total=870 [2020-10-13 06:10:29,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2020-10-13 06:10:29,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 534. [2020-10-13 06:10:29,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2020-10-13 06:10:29,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 612 transitions. [2020-10-13 06:10:29,497 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 612 transitions. Word has length 229 [2020-10-13 06:10:29,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:29,498 INFO L479 AbstractCegarLoop]: Abstraction has 534 states and 612 transitions. [2020-10-13 06:10:29,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:10:29,498 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 612 transitions. [2020-10-13 06:10:29,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-10-13 06:10:29,500 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:29,501 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:29,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:10:29,501 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:29,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:29,501 INFO L82 PathProgramCache]: Analyzing trace with hash -533267346, now seen corresponding path program 1 times [2020-10-13 06:10:29,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:29,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1712906517] [2020-10-13 06:10:29,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:29,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:29,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:29,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:29,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:29,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-10-13 06:10:29,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:10:29,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-10-13 06:10:29,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:29,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:10:29,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 118 [2020-10-13 06:10:29,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-13 06:10:29,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:10:30,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:30,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:30,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:30,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:30,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:30,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:10:30,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:30,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:30,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:30,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:30,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:30,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:30,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:30,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:30,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:10:30,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:30,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:10:30,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:30,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:30,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:30,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:30,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:30,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 06:10:30,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:30,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:30,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:30,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 06:10:30,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:30,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-13 06:10:30,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:30,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:30,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:30,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 06:10:30,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:30,476 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-13 06:10:30,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1712906517] [2020-10-13 06:10:30,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:30,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:10:30,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985922674] [2020-10-13 06:10:30,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:10:30,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:30,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:10:30,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:10:30,479 INFO L87 Difference]: Start difference. First operand 534 states and 612 transitions. Second operand 5 states. [2020-10-13 06:10:31,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:31,492 INFO L93 Difference]: Finished difference Result 1157 states and 1377 transitions. [2020-10-13 06:10:31,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:10:31,493 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 242 [2020-10-13 06:10:31,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:31,496 INFO L225 Difference]: With dead ends: 1157 [2020-10-13 06:10:31,496 INFO L226 Difference]: Without dead ends: 465 [2020-10-13 06:10:31,498 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:10:31,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-10-13 06:10:31,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 458. [2020-10-13 06:10:31,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2020-10-13 06:10:31,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 530 transitions. [2020-10-13 06:10:31,512 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 530 transitions. Word has length 242 [2020-10-13 06:10:31,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:31,512 INFO L479 AbstractCegarLoop]: Abstraction has 458 states and 530 transitions. [2020-10-13 06:10:31,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:10:31,512 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 530 transitions. [2020-10-13 06:10:31,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-13 06:10:31,514 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:31,515 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:31,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:10:31,515 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:31,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:31,516 INFO L82 PathProgramCache]: Analyzing trace with hash -147208575, now seen corresponding path program 1 times [2020-10-13 06:10:31,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:31,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [28634414] [2020-10-13 06:10:31,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:31,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:31,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:31,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:31,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:31,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:31,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:33,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:33,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:33,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:33,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:36,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:36,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-13 06:10:36,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 06:10:36,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4448 [2020-10-13 06:10:36,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:36,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:10:36,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-13 06:10:36,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:10:36,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:36,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:36,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:36,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:36,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:36,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:36,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:36,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:10:36,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:36,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:36,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:36,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:36,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:36,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:36,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:36,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:36,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:10:36,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:36,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:10:36,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:36,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:36,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:36,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:36,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:36,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 06:10:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:36,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:36,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:36,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:10:36,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:36,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:10:36,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:36,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:36,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:36,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:36,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:36,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 06:10:36,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:36,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:36,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:36,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:10:36,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:36,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:10:36,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:36,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 06:10:36,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:36,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 06:10:36,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:36,555 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 105 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-13 06:10:36,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [28634414] [2020-10-13 06:10:36,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:36,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:10:36,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331241065] [2020-10-13 06:10:36,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:10:36,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:36,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:10:36,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:10:36,558 INFO L87 Difference]: Start difference. First operand 458 states and 530 transitions. Second operand 13 states. [2020-10-13 06:10:39,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:39,047 INFO L93 Difference]: Finished difference Result 1152 states and 1419 transitions. [2020-10-13 06:10:39,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 06:10:39,047 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 249 [2020-10-13 06:10:39,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:39,051 INFO L225 Difference]: With dead ends: 1152 [2020-10-13 06:10:39,051 INFO L226 Difference]: Without dead ends: 464 [2020-10-13 06:10:39,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=303, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:10:39,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-10-13 06:10:39,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 461. [2020-10-13 06:10:39,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-10-13 06:10:39,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 536 transitions. [2020-10-13 06:10:39,067 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 536 transitions. Word has length 249 [2020-10-13 06:10:39,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:39,067 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 536 transitions. [2020-10-13 06:10:39,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:10:39,067 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 536 transitions. [2020-10-13 06:10:39,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-10-13 06:10:39,069 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:39,070 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:39,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:10:39,070 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:39,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:39,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1224437350, now seen corresponding path program 1 times [2020-10-13 06:10:39,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:39,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1322691117] [2020-10-13 06:10:39,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:39,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:39,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:39,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:39,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:40,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:40,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-10-13 06:10:40,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:10:40,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1558 [2020-10-13 06:10:40,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:40,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:10:40,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-13 06:10:40,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 06:10:40,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:40,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:40,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:40,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:40,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:40,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:40,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:10:40,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:40,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:40,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:40,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:40,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:40,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:40,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:40,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:40,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:10:40,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:40,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:10:40,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:40,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:40,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:40,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:40,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:41,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:10:41,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:41,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:41,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:41,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:10:41,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:41,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 06:10:41,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:41,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:41,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:41,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:10:41,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:41,157 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-13 06:10:41,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1322691117] [2020-10-13 06:10:41,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:41,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:10:41,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301174039] [2020-10-13 06:10:41,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:10:41,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:41,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:10:41,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:10:41,159 INFO L87 Difference]: Start difference. First operand 461 states and 536 transitions. Second operand 12 states. [2020-10-13 06:10:41,895 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2020-10-13 06:10:42,079 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2020-10-13 06:10:42,281 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2020-10-13 06:10:42,456 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2020-10-13 06:10:42,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:42,904 INFO L93 Difference]: Finished difference Result 952 states and 1125 transitions. [2020-10-13 06:10:42,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 06:10:42,911 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 264 [2020-10-13 06:10:42,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:42,914 INFO L225 Difference]: With dead ends: 952 [2020-10-13 06:10:42,914 INFO L226 Difference]: Without dead ends: 497 [2020-10-13 06:10:42,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-10-13 06:10:42,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-10-13 06:10:42,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 494. [2020-10-13 06:10:42,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 494 states. [2020-10-13 06:10:42,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 575 transitions. [2020-10-13 06:10:42,935 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 575 transitions. Word has length 264 [2020-10-13 06:10:42,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:42,935 INFO L479 AbstractCegarLoop]: Abstraction has 494 states and 575 transitions. [2020-10-13 06:10:42,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:10:42,936 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 575 transitions. [2020-10-13 06:10:42,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-10-13 06:10:42,938 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:42,938 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:42,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:10:42,939 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:42,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:42,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1119081419, now seen corresponding path program 1 times [2020-10-13 06:10:42,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:42,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [780641095] [2020-10-13 06:10:42,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:42,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:43,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:43,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:43,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:43,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:44,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:44,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:44,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 292 [2020-10-13 06:10:44,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:10:44,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1846 [2020-10-13 06:10:44,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:44,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:10:44,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 156 [2020-10-13 06:10:44,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:10:44,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:44,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:44,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:44,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:44,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:44,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:44,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:10:44,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:44,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:44,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:44,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:44,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:44,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:44,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:45,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:45,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:45,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:10:45,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:45,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:10:45,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:45,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:45,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:45,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:45,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:45,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:10:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:45,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:45,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:45,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:10:45,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:45,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:10:45,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:45,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:45,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:45,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:45,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:45,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:10:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:45,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:45,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:45,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 06:10:45,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:45,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:10:45,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:45,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:45,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:45,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 06:10:45,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:45,217 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 136 proven. 3 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-13 06:10:45,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [780641095] [2020-10-13 06:10:45,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:45,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:10:45,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530406101] [2020-10-13 06:10:45,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:10:45,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:45,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:10:45,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:10:45,220 INFO L87 Difference]: Start difference. First operand 494 states and 575 transitions. Second operand 5 states. [2020-10-13 06:10:46,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:46,168 INFO L93 Difference]: Finished difference Result 1068 states and 1282 transitions. [2020-10-13 06:10:46,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:10:46,168 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 278 [2020-10-13 06:10:46,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:46,171 INFO L225 Difference]: With dead ends: 1068 [2020-10-13 06:10:46,171 INFO L226 Difference]: Without dead ends: 497 [2020-10-13 06:10:46,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 2 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 06:10:46,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-10-13 06:10:46,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 494. [2020-10-13 06:10:46,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 494 states. [2020-10-13 06:10:46,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 570 transitions. [2020-10-13 06:10:46,187 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 570 transitions. Word has length 278 [2020-10-13 06:10:46,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:46,188 INFO L479 AbstractCegarLoop]: Abstraction has 494 states and 570 transitions. [2020-10-13 06:10:46,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:10:46,188 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 570 transitions. [2020-10-13 06:10:46,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2020-10-13 06:10:46,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:46,190 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:46,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:10:46,191 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:46,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:46,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1580880481, now seen corresponding path program 1 times [2020-10-13 06:10:46,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:46,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1879798589] [2020-10-13 06:10:46,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:46,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:46,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:46,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:46,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:46,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:47,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:47,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:48,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:48,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:50,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:50,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 299 [2020-10-13 06:10:50,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 06:10:50,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4207 [2020-10-13 06:10:50,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:50,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:10:50,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-10-13 06:10:50,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:10:50,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:51,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:51,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:51,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:51,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:51,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:51,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:10:51,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:51,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:51,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:51,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:51,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:51,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:51,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:51,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:51,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:10:51,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:51,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:10:51,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:51,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:51,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:51,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:51,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:51,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:10:51,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:51,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:51,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:51,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:10:51,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:51,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:10:51,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:51,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:51,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:51,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:51,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:51,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:10:51,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:51,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:51,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:51,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 06:10:51,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:51,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:10:51,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:51,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 06:10:51,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:51,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:10:51,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:51,458 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 141 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:10:51,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1879798589] [2020-10-13 06:10:51,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:51,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:10:51,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361452488] [2020-10-13 06:10:51,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:10:51,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:51,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:10:51,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:10:51,461 INFO L87 Difference]: Start difference. First operand 494 states and 570 transitions. Second operand 13 states. [2020-10-13 06:10:52,355 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-13 06:10:52,581 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2020-10-13 06:10:52,951 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2020-10-13 06:10:53,326 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 77 [2020-10-13 06:10:54,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:54,034 INFO L93 Difference]: Finished difference Result 1363 states and 1642 transitions. [2020-10-13 06:10:54,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:10:54,035 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 285 [2020-10-13 06:10:54,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:54,039 INFO L225 Difference]: With dead ends: 1363 [2020-10-13 06:10:54,040 INFO L226 Difference]: Without dead ends: 875 [2020-10-13 06:10:54,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:10:54,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2020-10-13 06:10:54,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 867. [2020-10-13 06:10:54,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-10-13 06:10:54,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 989 transitions. [2020-10-13 06:10:54,064 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 989 transitions. Word has length 285 [2020-10-13 06:10:54,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:54,065 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 989 transitions. [2020-10-13 06:10:54,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:10:54,065 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 989 transitions. [2020-10-13 06:10:54,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2020-10-13 06:10:54,069 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:54,069 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:54,069 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:10:54,069 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:54,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:54,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1809027082, now seen corresponding path program 1 times [2020-10-13 06:10:54,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:54,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1758758711] [2020-10-13 06:10:54,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:54,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:54,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:54,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:54,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-13 06:10:54,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:10:54,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369 [2020-10-13 06:10:54,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:54,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:10:54,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-13 06:10:54,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:10:54,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:54,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:54,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:54,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:54,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:54,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:54,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:54,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:10:54,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:54,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:54,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:54,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:54,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:54,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:54,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:54,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:54,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:54,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:10:54,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:54,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:10:54,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:54,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:54,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:54,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:54,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:54,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:10:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:54,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:54,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:54,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:10:54,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:54,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:10:54,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:54,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:54,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:54,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:54,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:54,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:10:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:54,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:54,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:54,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 06:10:54,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:54,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 06:10:54,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:54,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:54,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:54,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 06:10:54,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:54,879 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 148 proven. 3 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-10-13 06:10:54,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1758758711] [2020-10-13 06:10:54,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:54,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:10:54,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731255522] [2020-10-13 06:10:54,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:10:54,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:54,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:10:54,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:10:54,881 INFO L87 Difference]: Start difference. First operand 867 states and 989 transitions. Second operand 5 states. [2020-10-13 06:10:55,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:55,803 INFO L93 Difference]: Finished difference Result 1819 states and 2121 transitions. [2020-10-13 06:10:55,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:10:55,811 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 290 [2020-10-13 06:10:55,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:55,815 INFO L225 Difference]: With dead ends: 1819 [2020-10-13 06:10:55,815 INFO L226 Difference]: Without dead ends: 872 [2020-10-13 06:10:55,821 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:10:55,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2020-10-13 06:10:55,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 867. [2020-10-13 06:10:55,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-10-13 06:10:55,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 974 transitions. [2020-10-13 06:10:55,849 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 974 transitions. Word has length 290 [2020-10-13 06:10:55,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:55,849 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 974 transitions. [2020-10-13 06:10:55,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:10:55,850 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 974 transitions. [2020-10-13 06:10:55,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-10-13 06:10:55,854 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:55,854 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:55,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:10:55,854 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:55,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:55,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1633196356, now seen corresponding path program 1 times [2020-10-13 06:10:55,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:55,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [802812467] [2020-10-13 06:10:55,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:55,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:56,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:56,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:56,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:57,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:59,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:59,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 309 [2020-10-13 06:10:59,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:10:59,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3325 [2020-10-13 06:10:59,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:59,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:10:59,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-13 06:10:59,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 06:10:59,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:59,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:59,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:59,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:59,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:59,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:59,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:59,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:10:59,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:59,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:59,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:59,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:59,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:59,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:59,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:59,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:59,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:10:59,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:59,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:10:59,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:59,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:59,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:59,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:59,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:59,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:10:59,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:59,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:59,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:59,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:10:59,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:59,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:10:59,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:59,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:59,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:59,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:59,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:59,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:10:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:59,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:59,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:59,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 06:10:59,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:59,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:10:59,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:59,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:59,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:59,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 06:10:59,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:59,538 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 153 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-10-13 06:10:59,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [802812467] [2020-10-13 06:10:59,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:59,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:10:59,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347888763] [2020-10-13 06:10:59,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:10:59,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:59,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:10:59,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:10:59,540 INFO L87 Difference]: Start difference. First operand 867 states and 974 transitions. Second operand 5 states. [2020-10-13 06:11:00,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:00,443 INFO L93 Difference]: Finished difference Result 1817 states and 2083 transitions. [2020-10-13 06:11:00,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:11:00,444 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 295 [2020-10-13 06:11:00,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:00,449 INFO L225 Difference]: With dead ends: 1817 [2020-10-13 06:11:00,449 INFO L226 Difference]: Without dead ends: 872 [2020-10-13 06:11:00,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 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 06:11:00,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2020-10-13 06:11:00,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 867. [2020-10-13 06:11:00,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-10-13 06:11:00,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 961 transitions. [2020-10-13 06:11:00,471 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 961 transitions. Word has length 295 [2020-10-13 06:11:00,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:00,472 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 961 transitions. [2020-10-13 06:11:00,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:11:00,472 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 961 transitions. [2020-10-13 06:11:00,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2020-10-13 06:11:00,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:00,476 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:11:00,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:11:00,476 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:00,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:00,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1751477189, now seen corresponding path program 1 times [2020-10-13 06:11:00,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:00,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [369127215] [2020-10-13 06:11:00,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:00,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:00,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:00,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:01,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:01,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:01,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:01,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:02,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:02,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:02,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:02,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:02,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:04,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:04,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 366 [2020-10-13 06:11:04,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-13 06:11:04,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3603 [2020-10-13 06:11:04,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:04,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:11:04,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-10-13 06:11:04,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:11:04,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:04,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:04,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:04,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:04,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:04,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:04,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:04,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:11:04,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:04,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:04,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:04,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:04,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:04,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:04,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:04,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:04,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:04,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:11:04,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:04,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:11:04,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:04,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:04,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:04,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:04,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:04,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:11:04,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:04,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:04,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:04,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:11:04,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:04,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:11:04,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:04,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:04,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:04,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:04,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:04,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:11:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:04,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:04,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:04,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 06:11:04,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:04,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:11:04,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:04,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:04,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:04,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 06:11:04,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:04,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-13 06:11:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:04,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:04,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:04,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 06:11:04,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:04,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-13 06:11:04,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:04,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:11:04,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:11:04,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:11:04,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:04,496 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 336 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-13 06:11:04,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [369127215] [2020-10-13 06:11:04,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:04,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:11:04,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254020469] [2020-10-13 06:11:04,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:11:04,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:04,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:11:04,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:11:04,503 INFO L87 Difference]: Start difference. First operand 867 states and 961 transitions. Second operand 7 states. [2020-10-13 06:11:05,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:05,167 INFO L93 Difference]: Finished difference Result 1260 states and 1375 transitions. [2020-10-13 06:11:05,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 06:11:05,170 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 350 [2020-10-13 06:11:05,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:05,170 INFO L225 Difference]: With dead ends: 1260 [2020-10-13 06:11:05,170 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:11:05,175 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:11:05,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:11:05,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:11:05,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:11:05,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:11:05,176 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 350 [2020-10-13 06:11:05,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:05,176 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:11:05,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:11:05,176 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:11:05,176 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:11:05,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:11:05,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:11:06,147 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 126 [2020-10-13 06:11:07,000 WARN L193 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 155 [2020-10-13 06:11:08,600 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 227 DAG size of output: 168 [2020-10-13 06:11:09,056 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 77 [2020-10-13 06:11:09,629 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 104 [2020-10-13 06:11:09,633 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:11:09,634 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-10-13 06:11:09,634 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:11:09,634 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,634 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,635 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,635 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,635 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,635 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-10-13 06:11:09,635 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-10-13 06:11:09,635 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-13 06:11:09,636 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-13 06:11:09,636 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-13 06:11:09,636 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-13 06:11:09,636 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-13 06:11:09,636 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-10-13 06:11:09,636 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-10-13 06:11:09,636 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-10-13 06:11:09,636 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-10-13 06:11:09,636 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-10-13 06:11:09,636 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-10-13 06:11:09,636 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,636 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,636 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,636 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,637 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-10-13 06:11:09,637 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,637 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-10-13 06:11:09,637 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-13 06:11:09,637 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-13 06:11:09,637 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-13 06:11:09,637 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-13 06:11:09,637 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-13 06:11:09,637 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-10-13 06:11:09,637 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-10-13 06:11:09,637 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-10-13 06:11:09,638 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-10-13 06:11:09,638 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-10-13 06:11:09,638 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-10-13 06:11:09,638 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-10-13 06:11:09,638 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-10-13 06:11:09,638 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-10-13 06:11:09,638 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,638 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,638 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,638 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,638 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,639 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 562) no Hoare annotation was computed. [2020-10-13 06:11:09,639 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-10-13 06:11:09,639 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-10-13 06:11:09,639 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-10-13 06:11:09,639 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-13 06:11:09,639 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-13 06:11:09,639 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-13 06:11:09,639 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-13 06:11:09,640 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-13 06:11:09,640 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-10-13 06:11:09,640 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-10-13 06:11:09,640 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-10-13 06:11:09,640 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,640 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,640 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,640 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,640 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,640 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-10-13 06:11:09,640 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-10-13 06:11:09,641 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-10-13 06:11:09,641 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-13 06:11:09,641 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-13 06:11:09,641 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-13 06:11:09,641 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-13 06:11:09,641 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-13 06:11:09,641 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-10-13 06:11:09,641 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-10-13 06:11:09,641 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-10-13 06:11:09,641 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-10-13 06:11:09,641 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-10-13 06:11:09,641 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,641 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,642 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,642 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,642 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,642 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-10-13 06:11:09,642 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-10-13 06:11:09,642 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-13 06:11:09,642 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-13 06:11:09,642 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-13 06:11:09,642 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-13 06:11:09,642 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-10-13 06:11:09,643 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-10-13 06:11:09,643 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-10-13 06:11:09,643 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-10-13 06:11:09,643 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-10-13 06:11:09,643 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-10-13 06:11:09,643 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-10-13 06:11:09,643 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-10-13 06:11:09,643 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-10-13 06:11:09,643 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-10-13 06:11:09,643 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,643 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,643 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,643 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,643 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-10-13 06:11:09,643 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,644 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-10-13 06:11:09,644 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,644 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-10-13 06:11:09,644 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-10-13 06:11:09,644 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-10-13 06:11:09,644 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,644 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,644 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-10-13 06:11:09,644 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-13 06:11:09,644 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-13 06:11:09,644 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-13 06:11:09,644 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-13 06:11:09,644 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-13 06:11:09,644 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-10-13 06:11:09,644 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-10-13 06:11:09,645 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-10-13 06:11:09,645 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-10-13 06:11:09,645 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-10-13 06:11:09,645 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,645 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,645 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,645 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,645 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,645 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,645 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-10-13 06:11:09,645 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-10-13 06:11:09,645 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-13 06:11:09,645 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-13 06:11:09,645 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-13 06:11:09,645 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-13 06:11:09,646 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-13 06:11:09,646 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-10-13 06:11:09,646 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-10-13 06:11:09,646 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-10-13 06:11:09,646 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-10-13 06:11:09,646 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,646 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,646 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,646 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,646 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,646 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,646 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-10-13 06:11:09,646 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-10-13 06:11:09,646 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-10-13 06:11:09,646 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-10-13 06:11:09,646 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-13 06:11:09,647 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-13 06:11:09,647 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-13 06:11:09,647 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-13 06:11:09,647 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-13 06:11:09,647 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-10-13 06:11:09,647 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-10-13 06:11:09,647 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-10-13 06:11:09,647 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-10-13 06:11:09,647 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-10-13 06:11:09,647 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,647 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,647 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,648 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse23 (= ~a25~0 1)) (.cse28 (= ~a28~0 10)) (.cse30 (= |old(~a19~0)| 1)) (.cse2 (= |old(~a25~0)| 1)) (.cse4 (= |old(~a11~0)| 1)) (.cse5 (= ~a11~0 |old(~a11~0)|)) (.cse6 (= ~a25~0 |old(~a25~0)|)) (.cse7 (= ~a17~0 8)) (.cse24 (= ~a28~0 9)) (.cse21 (= ~a19~0 |old(~a19~0)|))) (let ((.cse1 (not (= 0 |old(~a19~0)|))) (.cse17 (not (<= |old(~a11~0)| 1))) (.cse19 (<= 1 ~a11~0)) (.cse20 (<= ~a11~0 1)) (.cse18 (not (<= 1 |old(~a11~0)|))) (.cse16 (not (<= |old(~a19~0)| 0))) (.cse13 (not (= 9 |old(~a28~0)|))) (.cse14 (and .cse5 .cse6 .cse7 .cse24 .cse21)) (.cse0 (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6)))) (.cse12 (not (= 0 |old(~a25~0)|))) (.cse27 (= 7 ~a17~0)) (.cse8 (= 7 ~a28~0)) (.cse26 (not (= 7 |old(~a17~0)|))) (.cse10 (not (= 7 |old(~a28~0)|))) (.cse15 (not .cse4)) (.cse22 (not .cse2)) (.cse25 (not (= 10 |old(~a28~0)|))) (.cse11 (not .cse30)) (.cse3 (not (= 8 |old(~a17~0)|))) (.cse29 (and .cse5 .cse7 .cse23 .cse21 .cse28)) (.cse9 (not (= ~a21~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (and (= ~a19~0 0) .cse5 .cse6 .cse7 .cse8) .cse9 .cse10) (or .cse11 .cse3 .cse12 .cse13 .cse9 .cse14 .cse15) (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (and (not (< 1 |old(~a19~0)|)) .cse16) .cse17 (not (<= 8 |old(~a17~0)|)) (not (<= 7 |old(~a28~0)|)) (not (<= |old(~a25~0)| 0)) .cse9 .cse18 (and (= ~a17~0 |old(~a17~0)|) .cse19 (<= 7 ~a28~0) .cse6 .cse20 (<= ~a28~0 7) .cse21)) (or .cse22 .cse11 .cse3 .cse13 .cse9 (and .cse5 .cse7 .cse23 .cse24 .cse21)) (or .cse25 .cse26 (and .cse27 .cse5 .cse6 .cse21 .cse28) .cse1 .cse12 .cse9 .cse15) (or .cse0 .cse22 .cse25 .cse3 .cse4 .cse29 .cse9) (or .cse0 (and .cse5 .cse6 .cse7 (= ~a28~0 8) .cse21) .cse30 .cse3 .cse12 .cse4 .cse9 (not (= 8 |old(~a28~0)|))) (or (not (<= |old(~a25~0)| 1)) .cse17 (not (<= 7 |old(~a17~0)|)) (not (<= |old(~a17~0)| 7)) (and .cse19 (<= 7 ~a17~0) (<= 9 ~a28~0) (<= 1 ~a25~0) .cse20 (<= ~a28~0 9) (<= ~a25~0 1) (<= ~a17~0 7) .cse21) (not (<= |old(~a28~0)| 9)) .cse9 .cse18 (not (<= 1 |old(~a25~0)|)) .cse16 (not (<= 9 |old(~a28~0)|))) (or .cse11 .cse3 .cse4 .cse13 .cse9 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1)))) .cse14) (or .cse0 .cse25 .cse11 .cse3 .cse4 .cse9 (and .cse5 .cse6 .cse7 .cse21 .cse28)) (or .cse0 .cse11 (and .cse5 .cse6 .cse7 .cse8 .cse21) .cse3 .cse12 .cse9 .cse10 (not (= |old(~a11~0)| |old(~a25~0)|))) (or .cse22 .cse11 (and (= ~a28~0 |old(~a28~0)|) .cse5 .cse7 .cse23 .cse21) .cse3 .cse4 .cse9) (or (and .cse27 .cse5 .cse8 .cse23 .cse21) .cse22 .cse26 .cse11 .cse9 .cse10 .cse15) (or .cse22 .cse25 .cse11 .cse3 .cse29 .cse9)))) [2020-10-13 06:11:09,648 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,648 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,648 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,648 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-10-13 06:11:09,648 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-10-13 06:11:09,648 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-10-13 06:11:09,648 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-13 06:11:09,649 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-13 06:11:09,649 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-13 06:11:09,649 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-13 06:11:09,649 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-13 06:11:09,649 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-13 06:11:09,649 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-10-13 06:11:09,649 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-10-13 06:11:09,649 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-10-13 06:11:09,649 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-10-13 06:11:09,649 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,649 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,649 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,649 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,649 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,649 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,649 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-10-13 06:11:09,650 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-10-13 06:11:09,650 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-10-13 06:11:09,650 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-13 06:11:09,650 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-13 06:11:09,650 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-13 06:11:09,650 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-13 06:11:09,650 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-13 06:11:09,650 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-10-13 06:11:09,650 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-10-13 06:11:09,650 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-10-13 06:11:09,650 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-10-13 06:11:09,650 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-10-13 06:11:09,650 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-10-13 06:11:09,650 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-10-13 06:11:09,650 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-10-13 06:11:09,650 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,651 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,651 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,651 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,651 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:11:09,651 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-10-13 06:11:09,651 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-10-13 06:11:09,651 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-10-13 06:11:09,651 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-10-13 06:11:09,651 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-10-13 06:11:09,651 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-13 06:11:09,651 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-13 06:11:09,651 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-13 06:11:09,651 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-13 06:11:09,651 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-13 06:11:09,651 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-10-13 06:11:09,651 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-10-13 06:11:09,652 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-10-13 06:11:09,652 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-10-13 06:11:09,652 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-10-13 06:11:09,652 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-10-13 06:11:09,652 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-10-13 06:11:09,652 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-10-13 06:11:09,652 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-10-13 06:11:09,652 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:11:09,652 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a25~0 ~a11~0) (= ~a19~0 1) (= ~a25~0 0) (= ~a21~0 1) (= ~a17~0 8) (= 7 ~a28~0)) [2020-10-13 06:11:09,652 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:11:09,652 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:11:09,652 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= |old(~a19~0)| 1)) (and (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8) (= 7 ~a28~0) (= ~a19~0 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (not (= ~a21~0 1)) (not (= 7 |old(~a28~0)|)) (not (= |old(~a11~0)| |old(~a25~0)|))) [2020-10-13 06:11:09,653 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse7 (= ~a11~0 1))) (let ((.cse3 (= 7 ~a17~0)) (.cse11 (= ~a25~0 0)) (.cse13 (= ~a19~0 0)) (.cse5 (= 7 ~a28~0)) (.cse14 (= ~a19~0 |old(~a19~0)|)) (.cse0 (<= 1 ~a11~0)) (.cse2 (<= ~a19~0 0)) (.cse1 (<= ~a11~0 1)) (.cse9 (not .cse7)) (.cse12 (= ~a28~0 9)) (.cse4 (= ~a19~0 1)) (.cse8 (= ~a17~0 8)) (.cse6 (= ~a25~0 1)) (.cse10 (= ~a28~0 10))) (or (and .cse0 (<= 7 ~a28~0) .cse1 (<= 8 ~a17~0) (<= ~a28~0 7) (<= ~a17~0 8) (<= ~a25~0 0) (or .cse2 (< 1 ~a19~0))) (and .cse3 .cse4 .cse5 .cse6 .cse7) (not (= |old(~a19~0)| 1)) (not (= 8 |old(~a17~0)|)) (and .cse8 .cse6 .cse9 .cse10) (not (= 0 |old(~a25~0)|)) (and .cse4 .cse11 .cse8 .cse12) (and .cse13 .cse3 .cse11 .cse7 .cse10) (and .cse11 .cse8 (not .cse4) .cse9 (= ~a28~0 8)) (and .cse13 .cse8 .cse5 .cse9 (not .cse6)) (and .cse8 .cse12 .cse9 .cse14) (and .cse4 .cse8 .cse9 .cse10) (and (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) .cse8 .cse5 .cse14) (and .cse0 .cse2 (<= 7 ~a17~0) (<= 9 ~a28~0) (<= 1 ~a25~0) .cse1 (<= ~a28~0 9) (<= ~a25~0 1) (<= ~a17~0 7)) (and .cse4 .cse8 .cse6 .cse9) (and .cse4 .cse8 .cse6 .cse12) (not (= ~a21~0 1)) (not (= 7 |old(~a28~0)|)) (and .cse4 .cse8 .cse6 .cse10) (not (= |old(~a11~0)| |old(~a25~0)|))))) [2020-10-13 06:11:09,653 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-10-13 06:11:09,653 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-10-13 06:11:09,653 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse7 (= ~a11~0 1))) (let ((.cse3 (= 7 ~a17~0)) (.cse9 (= ~a25~0 0)) (.cse0 (<= 1 ~a11~0)) (.cse2 (<= ~a19~0 0)) (.cse1 (<= ~a11~0 1)) (.cse14 (= ~a28~0 9)) (.cse15 (= ~a19~0 |old(~a19~0)|)) (.cse13 (= ~a19~0 0)) (.cse5 (= 7 ~a28~0)) (.cse8 (or (= 5 main_~input~0) (= 6 main_~input~0) (= main_~input~0 4) (= 3 main_~input~0) (= main_~input~0 1))) (.cse11 (not .cse7)) (.cse4 (= ~a19~0 1)) (.cse10 (= ~a17~0 8)) (.cse6 (= ~a25~0 1)) (.cse12 (= ~a28~0 10))) (or (and .cse0 (<= 7 ~a28~0) .cse1 (<= 8 ~a17~0) (<= ~a28~0 7) (<= ~a17~0 8) (<= ~a25~0 0) (or .cse2 (< 1 ~a19~0))) (and .cse3 .cse4 .cse5 .cse6 .cse7) (not (= |old(~a19~0)| 1)) (and .cse8 .cse9 .cse10 (not .cse4) .cse11 (= ~a28~0 8)) (and .cse8 .cse10 .cse6 .cse11 .cse12) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (and .cse13 .cse3 .cse9 .cse7 .cse12) (and .cse4 .cse9 .cse10 .cse14 .cse7) (and .cse8 (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) .cse10 .cse5 .cse15) (and .cse0 .cse2 (<= 7 ~a17~0) (<= 9 ~a28~0) (<= 1 ~a25~0) .cse1 (<= ~a28~0 9) (<= ~a25~0 1) (<= ~a17~0 7)) (and .cse4 .cse10 .cse6 .cse11) (and .cse4 .cse10 .cse6 .cse14) (not (= ~a21~0 1)) (and .cse10 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) (and (<= main_~input~0 1) (<= 1 main_~input~0)) (and (<= main_~input~0 5) (<= 5 main_~input~0))) .cse14 .cse11 .cse15) (and .cse8 .cse13 .cse10 .cse5 .cse11 (not .cse6)) (not (= 7 |old(~a28~0)|)) (and .cse8 .cse4 .cse10 .cse11 .cse12) (and .cse4 .cse10 .cse6 .cse12) (not (= |old(~a11~0)| |old(~a25~0)|))))) [2020-10-13 06:11:09,653 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-10-13 06:11:09,653 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-10-13 06:11:09,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:11:09 BoogieIcfgContainer [2020-10-13 06:11:09,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:11:09,692 INFO L168 Benchmark]: Toolchain (without parser) took 81179.64 ms. Allocated memory was 147.8 MB in the beginning and 1.0 GB in the end (delta: 897.1 MB). Free memory was 101.7 MB in the beginning and 805.9 MB in the end (delta: -704.2 MB). Peak memory consumption was 887.9 MB. Max. memory is 7.1 GB. [2020-10-13 06:11:09,693 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 06:11:09,693 INFO L168 Benchmark]: CACSL2BoogieTranslator took 720.44 ms. Allocated memory was 147.8 MB in the beginning and 205.5 MB in the end (delta: 57.7 MB). Free memory was 101.5 MB in the beginning and 172.5 MB in the end (delta: -71.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. [2020-10-13 06:11:09,694 INFO L168 Benchmark]: Boogie Preprocessor took 108.62 ms. Allocated memory is still 205.5 MB. Free memory was 172.5 MB in the beginning and 167.2 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. [2020-10-13 06:11:09,699 INFO L168 Benchmark]: RCFGBuilder took 1221.96 ms. Allocated memory was 205.5 MB in the beginning and 234.9 MB in the end (delta: 29.4 MB). Free memory was 167.2 MB in the beginning and 175.3 MB in the end (delta: -8.1 MB). Peak memory consumption was 79.4 MB. Max. memory is 7.1 GB. [2020-10-13 06:11:09,699 INFO L168 Benchmark]: TraceAbstraction took 79121.45 ms. Allocated memory was 234.9 MB in the beginning and 1.0 GB in the end (delta: 810.0 MB). Free memory was 175.3 MB in the beginning and 805.9 MB in the end (delta: -630.6 MB). Peak memory consumption was 874.4 MB. Max. memory is 7.1 GB. [2020-10-13 06:11:09,705 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 720.44 ms. Allocated memory was 147.8 MB in the beginning and 205.5 MB in the end (delta: 57.7 MB). Free memory was 101.5 MB in the beginning and 172.5 MB in the end (delta: -71.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.62 ms. Allocated memory is still 205.5 MB. Free memory was 172.5 MB in the beginning and 167.2 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1221.96 ms. Allocated memory was 205.5 MB in the beginning and 234.9 MB in the end (delta: 29.4 MB). Free memory was 167.2 MB in the beginning and 175.3 MB in the end (delta: -8.1 MB). Peak memory consumption was 79.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 79121.45 ms. Allocated memory was 234.9 MB in the beginning and 1.0 GB in the end (delta: 810.0 MB). Free memory was 175.3 MB in the beginning and 805.9 MB in the end (delta: -630.6 MB). Peak memory consumption was 874.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 562]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((1 <= a11 && 7 <= a28) && a11 <= 1) && 8 <= a17) && a28 <= 7) && a17 <= 8) && a25 <= 0) && (a19 <= 0 || 1 < a19)) || ((((7 == a17 && a19 == 1) && 7 == a28) && a25 == 1) && a11 == 1)) || !(\old(a19) == 1)) || !(8 == \old(a17))) || (((a17 == 8 && a25 == 1) && !(a11 == 1)) && a28 == 10)) || !(0 == \old(a25))) || (((a19 == 1 && a25 == 0) && a17 == 8) && a28 == 9)) || ((((a19 == 0 && 7 == a17) && a25 == 0) && a11 == 1) && a28 == 10)) || ((((a25 == 0 && a17 == 8) && !(a19 == 1)) && !(a11 == 1)) && a28 == 8)) || ((((a19 == 0 && a17 == 8) && 7 == a28) && !(a11 == 1)) && !(a25 == 1))) || (((a17 == 8 && a28 == 9) && !(a11 == 1)) && a19 == \old(a19))) || (((a19 == 1 && a17 == 8) && !(a11 == 1)) && a28 == 10)) || ((((a11 == \old(a11) && a25 == \old(a25)) && a17 == 8) && 7 == a28) && a19 == \old(a19))) || ((((((((1 <= a11 && a19 <= 0) && 7 <= a17) && 9 <= a28) && 1 <= a25) && a11 <= 1) && a28 <= 9) && a25 <= 1) && a17 <= 7)) || (((a19 == 1 && a17 == 8) && a25 == 1) && !(a11 == 1))) || (((a19 == 1 && a17 == 8) && a25 == 1) && a28 == 9)) || !(a21 == 1)) || !(7 == \old(a28))) || (((a19 == 1 && a17 == 8) && a25 == 1) && a28 == 10)) || !(\old(a11) == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 74.5s, OverallIterations: 18, TraceHistogramMax: 5, AutomataDifference: 29.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 670 SDtfs, 7265 SDslu, 933 SDs, 0 SdLazy, 14439 SolverSat, 1255 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 402 GetRequests, 163 SyntacticMatches, 7 SemanticMatches, 232 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 13.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=867occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 18 MinimizatonAttempts, 200 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 108 PreInvPairs, 145 NumberOfFragments, 1499 HoareAnnotationTreeSize, 108 FomulaSimplifications, 20710055 FormulaSimplificationTreeSizeReduction, 1.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1672 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 40.4s InterpolantComputationTime, 4029 NumberOfCodeBlocks, 4029 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 4011 ConstructedInterpolants, 0 QuantifiedInterpolants, 9002880 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 1 PerfectInterpolantSequences, 2294/2328 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...