/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label59.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:07:39,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:07:39,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:07:39,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:07:39,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:07:39,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:07:39,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:07:39,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:07:39,057 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:07:39,058 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:07:39,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:07:39,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:07:39,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:07:39,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:07:39,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:07:39,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:07:39,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:07:39,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:07:39,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:07:39,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:07:39,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:07:39,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:07:39,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:07:39,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:07:39,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:07:39,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:07:39,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:07:39,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:07:39,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:07:39,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:07:39,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:07:39,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:07:39,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:07:39,081 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:07:39,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:07:39,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:07:39,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:07:39,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:07:39,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:07:39,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:07:39,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:07:39,086 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 06:07:39,110 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:07:39,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:07:39,111 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:07:39,112 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:07:39,112 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:07:39,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:07:39,112 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:07:39,113 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:07:39,113 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:07:39,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:07:39,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:07:39,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:07:39,113 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:07:39,114 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:07:39,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:07:39,114 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:07:39,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:07:39,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:07:39,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:07:39,115 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:07:39,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:07:39,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:07:39,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:07:39,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:07:39,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:07:39,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:07:39,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:07:39,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:07:39,117 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:07:39,117 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 06:07:39,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:07:39,439 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:07:39,443 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:07:39,445 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:07:39,445 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:07:39,446 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label59.c [2020-10-13 06:07:39,508 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/741c5b2e3/8be375183a2441b0b4c1438dac200de3/FLAG0be05bf3c [2020-10-13 06:07:40,159 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:07:40,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label59.c [2020-10-13 06:07:40,171 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/741c5b2e3/8be375183a2441b0b4c1438dac200de3/FLAG0be05bf3c [2020-10-13 06:07:40,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/741c5b2e3/8be375183a2441b0b4c1438dac200de3 [2020-10-13 06:07:40,380 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:07:40,382 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:07:40,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:07:40,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:07:40,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:07:40,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:07:40" (1/1) ... [2020-10-13 06:07:40,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c6ee0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:40, skipping insertion in model container [2020-10-13 06:07:40,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:07:40" (1/1) ... [2020-10-13 06:07:40,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:07:40,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:07:40,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:07:40,994 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:07:41,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:07:41,125 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:07:41,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:41 WrapperNode [2020-10-13 06:07:41,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:07:41,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:07:41,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:07:41,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:07:41,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:41" (1/1) ... [2020-10-13 06:07:41,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:41" (1/1) ... [2020-10-13 06:07:41,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:41" (1/1) ... [2020-10-13 06:07:41,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:41" (1/1) ... [2020-10-13 06:07:41,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:41" (1/1) ... [2020-10-13 06:07:41,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:41" (1/1) ... [2020-10-13 06:07:41,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:41" (1/1) ... [2020-10-13 06:07:41,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:07:41,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:07:41,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:07:41,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:07:41,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:41" (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 06:07:41,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:07:41,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:07:41,333 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:07:41,333 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:07:41,333 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:07:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:07:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:07:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:07:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:07:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:07:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:07:42,435 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:07:42,435 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:07:42,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:07:42 BoogieIcfgContainer [2020-10-13 06:07:42,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:07:42,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:07:42,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:07:42,446 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:07:42,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:07:40" (1/3) ... [2020-10-13 06:07:42,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183c424d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:07:42, skipping insertion in model container [2020-10-13 06:07:42,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:07:41" (2/3) ... [2020-10-13 06:07:42,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183c424d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:07:42, skipping insertion in model container [2020-10-13 06:07:42,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:07:42" (3/3) ... [2020-10-13 06:07:42,450 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label59.c [2020-10-13 06:07:42,461 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:07:42,470 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:07:42,484 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:07:42,512 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:07:42,512 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:07:42,512 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:07:42,512 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:07:42,513 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:07:42,513 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:07:42,513 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:07:42,513 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:07:42,537 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-13 06:07:42,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-13 06:07:42,549 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:42,550 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] [2020-10-13 06:07:42,551 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:42,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:42,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1907034097, now seen corresponding path program 1 times [2020-10-13 06:07:42,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:42,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2053634510] [2020-10-13 06:07:42,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:42,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:43,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:44,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:44,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 06:07:44,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:07:44,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1353 [2020-10-13 06:07:44,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:44,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 06:07:44,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:07:44,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:07:44,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:07:44,746 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 44 [2020-10-13 06:07:44,911 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 42 [2020-10-13 06:07:45,067 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 38 [2020-10-13 06:07:45,192 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 35 [2020-10-13 06:07:45,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:45,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:45,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:45,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:45,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:45,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:45,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 06:07:45,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:45,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:45,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:45,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:07:45,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:45,660 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 06:07:45,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2053634510] [2020-10-13 06:07:45,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:07:45,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 06:07:45,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633610208] [2020-10-13 06:07:45,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:07:45,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:45,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:07:45,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:07:45,689 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 12 states. [2020-10-13 06:07:45,984 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-13 06:07:46,130 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-13 06:07:46,303 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 06:07:46,616 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 111 [2020-10-13 06:07:46,945 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 108 [2020-10-13 06:07:47,491 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 105 [2020-10-13 06:07:48,071 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 102 [2020-10-13 06:07:48,441 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 97 [2020-10-13 06:07:49,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:49,342 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-13 06:07:49,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:07:49,344 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 95 [2020-10-13 06:07:49,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:49,365 INFO L225 Difference]: With dead ends: 474 [2020-10-13 06:07:49,365 INFO L226 Difference]: Without dead ends: 205 [2020-10-13 06:07:49,372 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:07:49,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-13 06:07:49,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-13 06:07:49,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 06:07:49,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-13 06:07:49,436 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 95 [2020-10-13 06:07:49,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:49,437 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-13 06:07:49,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:07:49,437 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-13 06:07:49,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-13 06:07:49,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:49,443 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:49,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:07:49,443 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:49,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:49,444 INFO L82 PathProgramCache]: Analyzing trace with hash 2020659668, now seen corresponding path program 1 times [2020-10-13 06:07:49,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:49,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913266294] [2020-10-13 06:07:49,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:49,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:49,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:49,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:50,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:50,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 06:07:50,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:07:50,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-10-13 06:07:50,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:50,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:50,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 06:07:50,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:07:50,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:51,056 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-10-13 06:07:51,294 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-13 06:07:51,558 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 52 [2020-10-13 06:07:51,800 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 49 [2020-10-13 06:07:52,003 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 45 [2020-10-13 06:07:52,218 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 41 [2020-10-13 06:07:52,416 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 35 [2020-10-13 06:07:52,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:52,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:52,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:52,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:52,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:52,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:07:52,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:52,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:52,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:52,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:52,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:52,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:52,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:52,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:52,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:07:52,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:52,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:52,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:52,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:52,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:52,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:07:52,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:52,708 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:07:52,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1913266294] [2020-10-13 06:07:52,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:52,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:52,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327601833] [2020-10-13 06:07:52,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:52,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:52,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:52,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:52,736 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-13 06:07:53,083 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 06:07:53,284 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 06:07:53,940 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 114 [2020-10-13 06:07:54,869 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 111 [2020-10-13 06:07:55,368 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 108 [2020-10-13 06:07:55,548 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-13 06:07:55,929 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 105 [2020-10-13 06:07:56,242 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 100 [2020-10-13 06:07:56,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:56,999 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-13 06:07:56,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:07:56,999 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 103 [2020-10-13 06:07:57,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:57,005 INFO L225 Difference]: With dead ends: 433 [2020-10-13 06:07:57,005 INFO L226 Difference]: Without dead ends: 294 [2020-10-13 06:07:57,007 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-13 06:07:57,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-13 06:07:57,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-13 06:07:57,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 06:07:57,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-13 06:07:57,046 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 103 [2020-10-13 06:07:57,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:57,046 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-13 06:07:57,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:57,047 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-13 06:07:57,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-13 06:07:57,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:57,052 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:57,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:07:57,053 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:57,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:57,053 INFO L82 PathProgramCache]: Analyzing trace with hash -588378602, now seen corresponding path program 1 times [2020-10-13 06:07:57,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:57,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1863478312] [2020-10-13 06:07:57,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:57,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:57,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:57,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:57,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-13 06:07:57,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:57,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-10-13 06:07:57,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:57,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:57,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:07:57,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-13 06:07:57,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:07:57,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:57,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:57,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:57,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:57,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:57,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:07:57,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:57,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:57,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:57,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:57,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:57,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:57,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:57,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:57,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:57,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:07:57,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:57,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:07:57,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:57,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:57,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:57,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:07:57,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:57,503 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:07:57,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1863478312] [2020-10-13 06:07:57,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:57,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:07:57,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030748187] [2020-10-13 06:07:57,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:07:57,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:57,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:07:57,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:07:57,506 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 5 states. [2020-10-13 06:07:58,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:58,621 INFO L93 Difference]: Finished difference Result 625 states and 850 transitions. [2020-10-13 06:07:58,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:58,621 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 106 [2020-10-13 06:07:58,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:58,625 INFO L225 Difference]: With dead ends: 625 [2020-10-13 06:07:58,625 INFO L226 Difference]: Without dead ends: 415 [2020-10-13 06:07:58,626 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 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 06:07:58,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-10-13 06:07:58,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 413. [2020-10-13 06:07:58,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-10-13 06:07:58,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 520 transitions. [2020-10-13 06:07:58,656 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 520 transitions. Word has length 106 [2020-10-13 06:07:58,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:58,657 INFO L479 AbstractCegarLoop]: Abstraction has 413 states and 520 transitions. [2020-10-13 06:07:58,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:07:58,657 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 520 transitions. [2020-10-13 06:07:58,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-13 06:07:58,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:58,660 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:58,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:07:58,661 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:58,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:58,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1622780629, now seen corresponding path program 1 times [2020-10-13 06:07:58,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:58,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [888433743] [2020-10-13 06:07:58,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:58,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:58,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:58,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:02,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:03,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:03,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-13 06:08:03,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:08:03,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 06:08:03,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:03,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:03,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:08:03,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:08:03,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:03,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:03,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:03,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:03,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:03,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:03,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:03,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:03,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:03,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:03,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:03,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:03,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:03,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:03,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:03,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:03,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:08:03,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:03,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:03,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:03,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:03,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:03,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:08:03,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:03,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:08:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:03,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:03,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:03,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:08:03,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:03,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:08:03,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:03,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:03,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:08:03,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:08:03,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:03,874 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:08:03,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [888433743] [2020-10-13 06:08:03,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:03,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:08:03,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892359194] [2020-10-13 06:08:03,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:08:03,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:03,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:08:03,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:08:03,877 INFO L87 Difference]: Start difference. First operand 413 states and 520 transitions. Second operand 7 states. [2020-10-13 06:08:05,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:05,204 INFO L93 Difference]: Finished difference Result 921 states and 1174 transitions. [2020-10-13 06:08:05,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 06:08:05,206 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 115 [2020-10-13 06:08:05,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:05,210 INFO L225 Difference]: With dead ends: 921 [2020-10-13 06:08:05,210 INFO L226 Difference]: Without dead ends: 574 [2020-10-13 06:08:05,212 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:08:05,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-10-13 06:08:05,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 554. [2020-10-13 06:08:05,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2020-10-13 06:08:05,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 651 transitions. [2020-10-13 06:08:05,241 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 651 transitions. Word has length 115 [2020-10-13 06:08:05,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:05,241 INFO L479 AbstractCegarLoop]: Abstraction has 554 states and 651 transitions. [2020-10-13 06:08:05,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:08:05,241 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 651 transitions. [2020-10-13 06:08:05,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-13 06:08:05,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:05,245 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:05,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:08:05,245 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:05,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:05,246 INFO L82 PathProgramCache]: Analyzing trace with hash 875730747, now seen corresponding path program 1 times [2020-10-13 06:08:05,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:05,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [79514439] [2020-10-13 06:08:05,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:05,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:05,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:05,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:05,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:06,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:06,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-13 06:08:06,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:08:06,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1555 [2020-10-13 06:08:06,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:06,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:06,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:08:06,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:08:06,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:06,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:06,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:06,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:06,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:06,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:06,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:06,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:06,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:06,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:06,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:06,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:06,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:06,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:06,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:06,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:06,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:06,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:08:06,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:06,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:08:06,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:06,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:06,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:06,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:08:06,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:06,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:08:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:06,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:06,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:06,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:08:06,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:06,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 06:08:06,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:06,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:06,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:08:06,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:08:06,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:07,016 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:08:07,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [79514439] [2020-10-13 06:08:07,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:07,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:08:07,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111056149] [2020-10-13 06:08:07,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:08:07,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:07,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:08:07,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:08:07,019 INFO L87 Difference]: Start difference. First operand 554 states and 651 transitions. Second operand 7 states. [2020-10-13 06:08:08,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:08,380 INFO L93 Difference]: Finished difference Result 1350 states and 1610 transitions. [2020-10-13 06:08:08,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 06:08:08,381 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 123 [2020-10-13 06:08:08,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:08,386 INFO L225 Difference]: With dead ends: 1350 [2020-10-13 06:08:08,386 INFO L226 Difference]: Without dead ends: 715 [2020-10-13 06:08:08,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:08:08,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2020-10-13 06:08:08,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 699. [2020-10-13 06:08:08,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-10-13 06:08:08,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 781 transitions. [2020-10-13 06:08:08,417 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 781 transitions. Word has length 123 [2020-10-13 06:08:08,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:08,418 INFO L479 AbstractCegarLoop]: Abstraction has 699 states and 781 transitions. [2020-10-13 06:08:08,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:08:08,418 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 781 transitions. [2020-10-13 06:08:08,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-13 06:08:08,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:08,421 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:08,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:08:08,422 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:08,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:08,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1253752942, now seen corresponding path program 1 times [2020-10-13 06:08:08,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:08,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835522363] [2020-10-13 06:08:08,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:08,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:08,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:09,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:09,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-13 06:08:09,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:09,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1172 [2020-10-13 06:08:09,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:09,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:08:09,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 06:08:09,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:08:09,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 06:08:10,360 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 39 [2020-10-13 06:08:10,502 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 37 [2020-10-13 06:08:10,651 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 35 [2020-10-13 06:08:10,785 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 34 [2020-10-13 06:08:10,926 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 31 [2020-10-13 06:08:10,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:10,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:10,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:10,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:10,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:10,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:10,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:10,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:10,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:10,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:10,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:10,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:11,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:11,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:11,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:11,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:08:11,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:11,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 06:08:11,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:11,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:11,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:11,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 06:08:11,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:11,245 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:08:11,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1835522363] [2020-10-13 06:08:11,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:11,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:08:11,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006056805] [2020-10-13 06:08:11,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:08:11,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:11,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:08:11,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:08:11,248 INFO L87 Difference]: Start difference. First operand 699 states and 781 transitions. Second operand 13 states. [2020-10-13 06:08:11,698 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-13 06:08:11,841 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-13 06:08:12,305 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2020-10-13 06:08:12,714 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 91 [2020-10-13 06:08:13,009 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2020-10-13 06:08:13,290 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2020-10-13 06:08:13,669 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 87 [2020-10-13 06:08:14,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:14,067 INFO L93 Difference]: Finished difference Result 1400 states and 1593 transitions. [2020-10-13 06:08:14,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 06:08:14,068 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 136 [2020-10-13 06:08:14,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:14,073 INFO L225 Difference]: With dead ends: 1400 [2020-10-13 06:08:14,074 INFO L226 Difference]: Without dead ends: 750 [2020-10-13 06:08:14,076 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:08:14,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2020-10-13 06:08:14,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 742. [2020-10-13 06:08:14,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2020-10-13 06:08:14,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 832 transitions. [2020-10-13 06:08:14,114 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 832 transitions. Word has length 136 [2020-10-13 06:08:14,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:14,114 INFO L479 AbstractCegarLoop]: Abstraction has 742 states and 832 transitions. [2020-10-13 06:08:14,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:08:14,115 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 832 transitions. [2020-10-13 06:08:14,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-13 06:08:14,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:14,120 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:14,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:08:14,120 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:14,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:14,121 INFO L82 PathProgramCache]: Analyzing trace with hash -115813011, now seen corresponding path program 1 times [2020-10-13 06:08:14,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:14,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786760056] [2020-10-13 06:08:14,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:14,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:14,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:14,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:14,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:15,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:16,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:16,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-13 06:08:16,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:08:16,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2567 [2020-10-13 06:08:16,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:16,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:08:16,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 06:08:16,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 06:08:16,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:17,287 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2020-10-13 06:08:17,563 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 51 [2020-10-13 06:08:17,918 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 53 [2020-10-13 06:08:18,260 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 50 [2020-10-13 06:08:18,582 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 46 [2020-10-13 06:08:18,821 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 42 [2020-10-13 06:08:19,022 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 36 [2020-10-13 06:08:19,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:19,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:19,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:19,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:19,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:19,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:19,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:19,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:19,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:19,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:19,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:19,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:19,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:19,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:19,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:19,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:08:19,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:19,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:19,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:19,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:19,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:19,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:19,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:19,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:08:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:19,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:19,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:19,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:08:19,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:19,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 06:08:19,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:19,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:19,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:19,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 06:08:19,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:19,377 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 06:08:19,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786760056] [2020-10-13 06:08:19,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:19,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:08:19,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646087526] [2020-10-13 06:08:19,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:08:19,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:19,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:08:19,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:08:19,382 INFO L87 Difference]: Start difference. First operand 742 states and 832 transitions. Second operand 13 states. [2020-10-13 06:08:19,795 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2020-10-13 06:08:19,983 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-13 06:08:20,157 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 06:08:20,571 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 115 [2020-10-13 06:08:21,031 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 112 [2020-10-13 06:08:21,452 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 109 [2020-10-13 06:08:21,793 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 106 [2020-10-13 06:08:22,284 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 101 [2020-10-13 06:08:22,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:22,837 INFO L93 Difference]: Finished difference Result 1496 states and 1709 transitions. [2020-10-13 06:08:22,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:08:22,845 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 153 [2020-10-13 06:08:22,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:22,849 INFO L225 Difference]: With dead ends: 1496 [2020-10-13 06:08:22,849 INFO L226 Difference]: Without dead ends: 820 [2020-10-13 06:08:22,851 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:08:22,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2020-10-13 06:08:22,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 812. [2020-10-13 06:08:22,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 812 states. [2020-10-13 06:08:22,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 909 transitions. [2020-10-13 06:08:22,877 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 909 transitions. Word has length 153 [2020-10-13 06:08:22,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:22,877 INFO L479 AbstractCegarLoop]: Abstraction has 812 states and 909 transitions. [2020-10-13 06:08:22,877 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:08:22,878 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 909 transitions. [2020-10-13 06:08:22,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-13 06:08:22,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:22,881 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:22,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:08:22,881 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:22,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:22,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1570219518, now seen corresponding path program 1 times [2020-10-13 06:08:22,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:22,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [825907803] [2020-10-13 06:08:22,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:22,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:23,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:23,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:23,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-13 06:08:23,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:23,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 991 [2020-10-13 06:08:23,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:23,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:08:23,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 06:08:23,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 06:08:23,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:08:24,343 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 21 [2020-10-13 06:08:24,477 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2020-10-13 06:08:24,766 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-13 06:08:25,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:25,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:25,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:25,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:25,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:25,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:25,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:25,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:25,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:25,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:25,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:25,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:25,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:25,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:25,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:25,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:25,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 06:08:25,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:25,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:25,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:25,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 06:08:25,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:25,628 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 59 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:08:25,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [825907803] [2020-10-13 06:08:25,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:25,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:08:25,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908421275] [2020-10-13 06:08:25,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:08:25,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:25,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:08:25,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:08:25,631 INFO L87 Difference]: Start difference. First operand 812 states and 909 transitions. Second operand 14 states. [2020-10-13 06:08:26,174 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-10-13 06:08:26,419 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-10-13 06:08:26,757 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 115 [2020-10-13 06:08:27,199 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 112 [2020-10-13 06:08:27,659 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 109 [2020-10-13 06:08:27,984 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2020-10-13 06:08:28,314 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2020-10-13 06:08:28,655 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2020-10-13 06:08:29,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:29,036 INFO L93 Difference]: Finished difference Result 1633 states and 1862 transitions. [2020-10-13 06:08:29,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:08:29,037 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 158 [2020-10-13 06:08:29,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:29,041 INFO L225 Difference]: With dead ends: 1633 [2020-10-13 06:08:29,042 INFO L226 Difference]: Without dead ends: 867 [2020-10-13 06:08:29,044 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:08:29,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2020-10-13 06:08:29,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 863. [2020-10-13 06:08:29,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 863 states. [2020-10-13 06:08:29,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 962 transitions. [2020-10-13 06:08:29,069 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 962 transitions. Word has length 158 [2020-10-13 06:08:29,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:29,069 INFO L479 AbstractCegarLoop]: Abstraction has 863 states and 962 transitions. [2020-10-13 06:08:29,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:08:29,070 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 962 transitions. [2020-10-13 06:08:29,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-13 06:08:29,072 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:29,073 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:29,073 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:08:29,073 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:29,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:29,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1083574623, now seen corresponding path program 1 times [2020-10-13 06:08:29,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:29,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [775404651] [2020-10-13 06:08:29,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:29,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:29,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:29,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:30,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:30,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-13 06:08:30,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:30,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 929 [2020-10-13 06:08:30,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:30,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:08:30,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 06:08:30,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:08:30,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:30,432 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 45 [2020-10-13 06:08:30,550 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 44 [2020-10-13 06:08:30,675 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 41 [2020-10-13 06:08:31,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:31,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:31,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:31,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:31,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:31,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:31,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:31,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:31,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:31,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:31,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:31,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:31,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:31,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:31,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:08:31,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:31,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:31,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:31,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:31,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:31,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:31,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:31,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:08:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:31,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:31,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:31,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:08:31,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:31,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 06:08:31,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:31,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:31,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:31,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 06:08:31,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:31,410 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-13 06:08:31,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [775404651] [2020-10-13 06:08:31,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:31,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:08:31,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680959203] [2020-10-13 06:08:31,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:08:31,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:31,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:08:31,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:08:31,414 INFO L87 Difference]: Start difference. First operand 863 states and 962 transitions. Second operand 13 states. [2020-10-13 06:08:32,464 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:08:32,826 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-10-13 06:08:33,215 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2020-10-13 06:08:33,524 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 106 [2020-10-13 06:08:33,927 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 103 [2020-10-13 06:08:34,321 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 98 [2020-10-13 06:08:34,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:34,943 INFO L93 Difference]: Finished difference Result 1726 states and 1958 transitions. [2020-10-13 06:08:34,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:08:34,944 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 169 [2020-10-13 06:08:34,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:34,949 INFO L225 Difference]: With dead ends: 1726 [2020-10-13 06:08:34,950 INFO L226 Difference]: Without dead ends: 929 [2020-10-13 06:08:34,952 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:08:34,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2020-10-13 06:08:34,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 927. [2020-10-13 06:08:34,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 927 states. [2020-10-13 06:08:34,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1033 transitions. [2020-10-13 06:08:34,978 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1033 transitions. Word has length 169 [2020-10-13 06:08:34,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:34,979 INFO L479 AbstractCegarLoop]: Abstraction has 927 states and 1033 transitions. [2020-10-13 06:08:34,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:08:34,979 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1033 transitions. [2020-10-13 06:08:34,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-13 06:08:34,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:34,983 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:34,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:08:34,983 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:34,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:34,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1721889649, now seen corresponding path program 1 times [2020-10-13 06:08:34,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:34,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [171894908] [2020-10-13 06:08:34,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:35,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:35,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:35,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:36,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:36,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-13 06:08:36,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:36,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1158 [2020-10-13 06:08:36,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:36,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:08:36,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 06:08:36,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:08:36,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:36,577 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-10-13 06:08:36,721 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-10-13 06:08:36,954 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 41 [2020-10-13 06:08:37,163 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 39 [2020-10-13 06:08:37,315 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 37 [2020-10-13 06:08:37,470 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 35 [2020-10-13 06:08:37,626 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 32 [2020-10-13 06:08:37,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:37,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:37,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:37,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:37,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:37,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:37,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:37,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:37,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:37,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:37,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:37,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:37,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:37,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:37,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:08:37,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:37,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:08:37,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:37,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:37,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:37,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:37,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:37,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:08:37,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:37,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:37,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:37,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:08:37,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:37,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:08:37,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:37,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:37,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:37,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:08:37,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:37,929 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 06:08:37,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [171894908] [2020-10-13 06:08:37,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:37,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:08:37,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718351242] [2020-10-13 06:08:37,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:08:37,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:37,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:08:37,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:08:37,932 INFO L87 Difference]: Start difference. First operand 927 states and 1033 transitions. Second operand 13 states. [2020-10-13 06:08:38,670 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-13 06:08:38,818 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-13 06:08:39,203 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2020-10-13 06:08:39,574 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-13 06:08:39,719 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2020-10-13 06:08:39,978 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2020-10-13 06:08:40,281 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2020-10-13 06:08:40,649 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-10-13 06:08:40,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:40,999 INFO L93 Difference]: Finished difference Result 1850 states and 2093 transitions. [2020-10-13 06:08:40,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:08:40,999 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 172 [2020-10-13 06:08:41,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:41,004 INFO L225 Difference]: With dead ends: 1850 [2020-10-13 06:08:41,004 INFO L226 Difference]: Without dead ends: 972 [2020-10-13 06:08:41,006 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:08:41,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2020-10-13 06:08:41,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 965. [2020-10-13 06:08:41,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-10-13 06:08:41,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1078 transitions. [2020-10-13 06:08:41,034 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1078 transitions. Word has length 172 [2020-10-13 06:08:41,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:41,035 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1078 transitions. [2020-10-13 06:08:41,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:08:41,035 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1078 transitions. [2020-10-13 06:08:41,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-13 06:08:41,038 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:41,038 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:41,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:08:41,039 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:41,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:41,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1856061461, now seen corresponding path program 1 times [2020-10-13 06:08:41,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:41,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13408107] [2020-10-13 06:08:41,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:41,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:41,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:42,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:42,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-13 06:08:42,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:42,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1117 [2020-10-13 06:08:42,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:42,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:08:42,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 06:08:42,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:08:42,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:42,653 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-10-13 06:08:42,875 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-13 06:08:43,128 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 51 [2020-10-13 06:08:43,387 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 48 [2020-10-13 06:08:43,608 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 45 [2020-10-13 06:08:43,830 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 41 [2020-10-13 06:08:44,024 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 35 [2020-10-13 06:08:44,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:44,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:44,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:44,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:44,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:44,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:44,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:44,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:44,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:44,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:44,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:44,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:44,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:44,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:44,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:44,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:08:44,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:44,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:08:44,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:44,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:44,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:44,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:44,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:44,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:08:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:44,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:44,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:44,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 06:08:44,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:44,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 06:08:44,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:44,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:44,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:44,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 06:08:44,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:44,481 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 75 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 06:08:44,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [13408107] [2020-10-13 06:08:44,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:44,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:08:44,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843889674] [2020-10-13 06:08:44,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:08:44,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:44,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:08:44,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:08:44,484 INFO L87 Difference]: Start difference. First operand 965 states and 1078 transitions. Second operand 13 states. [2020-10-13 06:08:45,317 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 06:08:45,508 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 06:08:45,951 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 114 [2020-10-13 06:08:46,379 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 111 [2020-10-13 06:08:46,776 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 108 [2020-10-13 06:08:46,985 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 58 [2020-10-13 06:08:47,309 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 105 [2020-10-13 06:08:47,767 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 100 [2020-10-13 06:08:48,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:48,347 INFO L93 Difference]: Finished difference Result 1928 states and 2167 transitions. [2020-10-13 06:08:48,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:08:48,350 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 175 [2020-10-13 06:08:48,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:48,355 INFO L225 Difference]: With dead ends: 1928 [2020-10-13 06:08:48,355 INFO L226 Difference]: Without dead ends: 1012 [2020-10-13 06:08:48,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:08:48,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2020-10-13 06:08:48,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1008. [2020-10-13 06:08:48,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1008 states. [2020-10-13 06:08:48,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1128 transitions. [2020-10-13 06:08:48,394 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1128 transitions. Word has length 175 [2020-10-13 06:08:48,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:48,395 INFO L479 AbstractCegarLoop]: Abstraction has 1008 states and 1128 transitions. [2020-10-13 06:08:48,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:08:48,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1128 transitions. [2020-10-13 06:08:48,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-13 06:08:48,399 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:48,400 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:48,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:08:48,400 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:48,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:48,400 INFO L82 PathProgramCache]: Analyzing trace with hash 212977046, now seen corresponding path program 1 times [2020-10-13 06:08:48,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:48,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [240686015] [2020-10-13 06:08:48,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:48,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:48,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:48,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:49,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:50,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:50,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-13 06:08:50,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:08:50,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1997 [2020-10-13 06:08:50,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:08:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-13 06:08:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:08:50,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:51,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:51,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:51,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:51,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:51,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:51,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:51,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:51,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:51,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:51,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:51,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:51,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:51,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:51,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:51,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:51,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:08:51,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:51,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:51,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:51,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:51,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:51,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:51,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:51,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:08:51,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:51,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:51,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:51,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:08:51,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:51,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:08:51,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:51,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:51,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:51,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:51,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:51,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:08:51,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:51,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:51,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:51,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 06:08:51,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:51,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:08:51,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:51,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:51,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:51,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 06:08:51,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:51,625 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 06:08:51,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [240686015] [2020-10-13 06:08:51,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:51,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:08:51,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497773638] [2020-10-13 06:08:51,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:08:51,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:51,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:08:51,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:08:51,628 INFO L87 Difference]: Start difference. First operand 1008 states and 1128 transitions. Second operand 13 states. [2020-10-13 06:08:52,198 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-13 06:08:52,415 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-13 06:08:52,623 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-13 06:08:52,772 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-13 06:08:53,005 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-13 06:08:53,239 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-13 06:08:53,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:53,517 INFO L93 Difference]: Finished difference Result 2010 states and 2262 transitions. [2020-10-13 06:08:53,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:08:53,518 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 179 [2020-10-13 06:08:53,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:53,523 INFO L225 Difference]: With dead ends: 2010 [2020-10-13 06:08:53,523 INFO L226 Difference]: Without dead ends: 1051 [2020-10-13 06:08:53,525 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:08:53,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2020-10-13 06:08:53,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 1008. [2020-10-13 06:08:53,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1008 states. [2020-10-13 06:08:53,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1128 transitions. [2020-10-13 06:08:53,555 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1128 transitions. Word has length 179 [2020-10-13 06:08:53,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:53,555 INFO L479 AbstractCegarLoop]: Abstraction has 1008 states and 1128 transitions. [2020-10-13 06:08:53,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:08:53,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1128 transitions. [2020-10-13 06:08:53,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-13 06:08:53,559 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:53,559 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:53,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:08:53,559 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:53,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:53,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1512142284, now seen corresponding path program 1 times [2020-10-13 06:08:53,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:53,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1251019478] [2020-10-13 06:08:53,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:53,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:53,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:54,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:55,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:55,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-13 06:08:55,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:08:55,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2054 [2020-10-13 06:08:55,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:55,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:08:55,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-13 06:08:55,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:08:55,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:56,076 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2020-10-13 06:08:56,321 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 41 [2020-10-13 06:08:56,570 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 39 [2020-10-13 06:08:56,751 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 37 [2020-10-13 06:08:56,912 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 35 [2020-10-13 06:08:57,069 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 32 [2020-10-13 06:08:57,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:57,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:57,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:57,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:57,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:57,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:57,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:57,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:57,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:57,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:57,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:57,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:57,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:57,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:57,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:57,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:57,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:08:57,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:57,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:08:57,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:57,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:57,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:57,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:57,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:57,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:08:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:57,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:57,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:57,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:08:57,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:57,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:08:57,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:57,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:57,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:57,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:57,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:57,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:08:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:57,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:57,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:57,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 06:08:57,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:57,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:08:57,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:57,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:57,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:57,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 06:08:57,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:57,399 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 84 proven. 3 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2020-10-13 06:08:57,400 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1251019478] [2020-10-13 06:08:57,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:57,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:08:57,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287349792] [2020-10-13 06:08:57,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:08:57,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:57,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:08:57,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:08:57,402 INFO L87 Difference]: Start difference. First operand 1008 states and 1128 transitions. Second operand 13 states. [2020-10-13 06:08:57,587 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-13 06:08:57,742 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-13 06:08:58,118 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-13 06:08:58,621 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2020-10-13 06:08:58,962 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 90 [2020-10-13 06:08:59,274 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89 [2020-10-13 06:08:59,521 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2020-10-13 06:09:00,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:00,355 INFO L93 Difference]: Finished difference Result 2045 states and 2306 transitions. [2020-10-13 06:09:00,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:09:00,361 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 185 [2020-10-13 06:09:00,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:00,366 INFO L225 Difference]: With dead ends: 2045 [2020-10-13 06:09:00,366 INFO L226 Difference]: Without dead ends: 1103 [2020-10-13 06:09:00,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:09:00,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2020-10-13 06:09:00,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 1016. [2020-10-13 06:09:00,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1016 states. [2020-10-13 06:09:00,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1138 transitions. [2020-10-13 06:09:00,398 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1138 transitions. Word has length 185 [2020-10-13 06:09:00,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:00,398 INFO L479 AbstractCegarLoop]: Abstraction has 1016 states and 1138 transitions. [2020-10-13 06:09:00,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:09:00,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1138 transitions. [2020-10-13 06:09:00,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-10-13 06:09:00,402 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:00,403 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:00,403 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:09:00,403 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:00,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:00,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1639103692, now seen corresponding path program 1 times [2020-10-13 06:09:00,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:00,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1817609489] [2020-10-13 06:09:00,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:00,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:00,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:00,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:01,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:01,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-13 06:09:01,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:09:01,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1089 [2020-10-13 06:09:01,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:01,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:09:01,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-13 06:09:01,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:09:01,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:01,904 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2020-10-13 06:09:02,148 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 39 [2020-10-13 06:09:02,301 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 37 [2020-10-13 06:09:02,454 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 35 [2020-10-13 06:09:02,595 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 34 [2020-10-13 06:09:02,739 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 31 [2020-10-13 06:09:02,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:02,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:02,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:02,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:02,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:02,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:02,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:02,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:02,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:02,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:02,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:02,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:02,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:02,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:02,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:09:02,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:02,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:09:02,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:02,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:02,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:02,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:02,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:02,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:09:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:02,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:02,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:02,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:09:02,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:02,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:09:02,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:02,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:02,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:02,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:02,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:02,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:09:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:02,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:02,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:02,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 06:09:02,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:02,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:09:02,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:02,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:02,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:02,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 06:09:02,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:03,032 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 96 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:09:03,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1817609489] [2020-10-13 06:09:03,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:03,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:09:03,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558231874] [2020-10-13 06:09:03,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:09:03,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:03,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:09:03,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:09:03,034 INFO L87 Difference]: Start difference. First operand 1016 states and 1138 transitions. Second operand 13 states. [2020-10-13 06:09:03,368 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-13 06:09:03,526 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-13 06:09:04,003 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 93 [2020-10-13 06:09:04,407 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-13 06:09:04,697 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2020-10-13 06:09:05,102 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 90 [2020-10-13 06:09:05,464 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 88 [2020-10-13 06:09:05,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:05,770 INFO L93 Difference]: Finished difference Result 2031 states and 2310 transitions. [2020-10-13 06:09:05,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 06:09:05,772 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 197 [2020-10-13 06:09:05,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:05,775 INFO L225 Difference]: With dead ends: 2031 [2020-10-13 06:09:05,775 INFO L226 Difference]: Without dead ends: 1064 [2020-10-13 06:09:05,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:09:05,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2020-10-13 06:09:05,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1016. [2020-10-13 06:09:05,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1016 states. [2020-10-13 06:09:05,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1138 transitions. [2020-10-13 06:09:05,809 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1138 transitions. Word has length 197 [2020-10-13 06:09:05,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:05,810 INFO L479 AbstractCegarLoop]: Abstraction has 1016 states and 1138 transitions. [2020-10-13 06:09:05,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:09:05,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1138 transitions. [2020-10-13 06:09:05,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-13 06:09:05,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:05,815 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:05,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:09:05,815 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:05,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:05,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1421101289, now seen corresponding path program 1 times [2020-10-13 06:09:05,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:05,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401827415] [2020-10-13 06:09:05,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:05,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:05,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:06,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:06,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-10-13 06:09:06,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:09:06,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 803 [2020-10-13 06:09:06,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:06,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:09:06,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-13 06:09:06,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:09:06,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:06,983 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2020-10-13 06:09:07,194 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-13 06:09:07,341 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:09:07,472 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2020-10-13 06:09:07,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:07,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:07,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:07,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:07,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:07,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:09:07,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:07,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:07,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:07,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:07,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:07,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:07,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:07,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:07,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:07,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:09:07,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:07,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:09:07,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:07,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:07,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:07,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:07,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:07,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:09:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:07,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:07,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:07,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:07,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:07,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 06:09:07,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:07,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:07,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:07,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:09:07,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:08,148 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-13 06:09:08,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401827415] [2020-10-13 06:09:08,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:08,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:09:08,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846938222] [2020-10-13 06:09:08,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:09:08,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:08,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:09:08,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:09:08,150 INFO L87 Difference]: Start difference. First operand 1016 states and 1138 transitions. Second operand 14 states. [2020-10-13 06:09:08,758 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-10-13 06:09:08,927 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-10-13 06:09:09,170 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-10-13 06:09:09,521 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 115 [2020-10-13 06:09:09,875 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 112 [2020-10-13 06:09:10,199 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 109 [2020-10-13 06:09:10,702 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2020-10-13 06:09:11,151 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2020-10-13 06:09:11,490 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2020-10-13 06:09:11,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:11,962 INFO L93 Difference]: Finished difference Result 2030 states and 2289 transitions. [2020-10-13 06:09:11,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:09:11,963 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 209 [2020-10-13 06:09:11,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:11,967 INFO L225 Difference]: With dead ends: 2030 [2020-10-13 06:09:11,967 INFO L226 Difference]: Without dead ends: 1033 [2020-10-13 06:09:11,969 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=182, Invalid=418, Unknown=0, NotChecked=0, Total=600 [2020-10-13 06:09:11,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2020-10-13 06:09:11,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 1029. [2020-10-13 06:09:11,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1029 states. [2020-10-13 06:09:11,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1152 transitions. [2020-10-13 06:09:11,994 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1152 transitions. Word has length 209 [2020-10-13 06:09:11,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:11,995 INFO L479 AbstractCegarLoop]: Abstraction has 1029 states and 1152 transitions. [2020-10-13 06:09:11,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:09:11,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1152 transitions. [2020-10-13 06:09:11,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-10-13 06:09:11,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:11,998 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:11,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:09:11,999 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:11,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:11,999 INFO L82 PathProgramCache]: Analyzing trace with hash -404334894, now seen corresponding path program 1 times [2020-10-13 06:09:11,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:11,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [804341136] [2020-10-13 06:09:12,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:12,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:12,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:12,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:12,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:12,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:13,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:13,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-10-13 06:09:13,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:09:13,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1370 [2020-10-13 06:09:13,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:13,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:09:13,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-10-13 06:09:13,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:09:13,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:13,866 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2020-10-13 06:09:14,098 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 51 [2020-10-13 06:09:14,357 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 50 [2020-10-13 06:09:14,596 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 46 [2020-10-13 06:09:14,830 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 42 [2020-10-13 06:09:15,045 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 38 [2020-10-13 06:09:15,271 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 34 [2020-10-13 06:09:15,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:15,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:15,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:15,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:15,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:15,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:15,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:15,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:15,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:15,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:15,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:15,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:15,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:15,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:15,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:15,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:15,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:09:15,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:15,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:09:15,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:15,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:15,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:15,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:15,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:15,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:09:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:15,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:15,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:15,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:15,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:15,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:09:15,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:15,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:15,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:15,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:15,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:15,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:09:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:15,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:15,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:15,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:09:15,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:15,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:09:15,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:15,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:15,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:15,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:09:15,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:15,607 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 121 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-13 06:09:15,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [804341136] [2020-10-13 06:09:15,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:15,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:09:15,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213137538] [2020-10-13 06:09:15,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:09:15,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:15,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:09:15,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:09:15,609 INFO L87 Difference]: Start difference. First operand 1029 states and 1152 transitions. Second operand 13 states. [2020-10-13 06:09:16,353 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-13 06:09:16,554 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 06:09:16,965 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 114 [2020-10-13 06:09:17,462 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 111 [2020-10-13 06:09:17,835 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 108 [2020-10-13 06:09:18,315 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 105 [2020-10-13 06:09:18,805 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 100 [2020-10-13 06:09:19,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:19,292 INFO L93 Difference]: Finished difference Result 2069 states and 2358 transitions. [2020-10-13 06:09:19,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:09:19,300 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 222 [2020-10-13 06:09:19,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:19,305 INFO L225 Difference]: With dead ends: 2069 [2020-10-13 06:09:19,305 INFO L226 Difference]: Without dead ends: 1106 [2020-10-13 06:09:19,307 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:09:19,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2020-10-13 06:09:19,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 1102. [2020-10-13 06:09:19,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1102 states. [2020-10-13 06:09:19,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1232 transitions. [2020-10-13 06:09:19,336 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1232 transitions. Word has length 222 [2020-10-13 06:09:19,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:19,337 INFO L479 AbstractCegarLoop]: Abstraction has 1102 states and 1232 transitions. [2020-10-13 06:09:19,337 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:09:19,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1232 transitions. [2020-10-13 06:09:19,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-13 06:09:19,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:19,341 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:19,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:09:19,341 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:19,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:19,342 INFO L82 PathProgramCache]: Analyzing trace with hash 349025147, now seen corresponding path program 1 times [2020-10-13 06:09:19,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:19,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [429572295] [2020-10-13 06:09:19,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:19,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:19,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:19,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:20,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:21,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:21,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-13 06:09:21,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:09:21,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1626 [2020-10-13 06:09:21,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:21,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:21,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-13 06:09:21,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:09:21,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:21,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:21,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:21,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:21,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:21,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:21,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:09:21,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:21,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:21,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:21,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:21,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:21,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:21,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:21,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:21,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:21,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:09:21,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:21,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:21,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:21,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:21,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:21,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:21,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:21,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:09:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:21,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:21,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:21,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:09:21,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:21,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:09:21,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:21,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:21,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:21,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:21,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:09:21,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:21,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:21,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:21,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 06:09:21,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:21,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 06:09:21,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:21,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:21,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:21,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 06:09:21,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:21,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 06:09:21,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:21,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:21,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:21,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:09:21,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:21,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:09:21,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:21,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:21,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:09:21,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:09:21,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:21,308 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 164 proven. 2 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-10-13 06:09:21,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [429572295] [2020-10-13 06:09:21,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:21,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:09:21,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937183022] [2020-10-13 06:09:21,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:09:21,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:21,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:09:21,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:09:21,310 INFO L87 Difference]: Start difference. First operand 1102 states and 1232 transitions. Second operand 7 states. [2020-10-13 06:09:22,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:22,719 INFO L93 Difference]: Finished difference Result 2309 states and 2634 transitions. [2020-10-13 06:09:22,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 06:09:22,720 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 228 [2020-10-13 06:09:22,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:22,725 INFO L225 Difference]: With dead ends: 2309 [2020-10-13 06:09:22,725 INFO L226 Difference]: Without dead ends: 771 [2020-10-13 06:09:22,728 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:09:22,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2020-10-13 06:09:22,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 761. [2020-10-13 06:09:22,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 761 states. [2020-10-13 06:09:22,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 804 transitions. [2020-10-13 06:09:22,745 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 804 transitions. Word has length 228 [2020-10-13 06:09:22,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:22,746 INFO L479 AbstractCegarLoop]: Abstraction has 761 states and 804 transitions. [2020-10-13 06:09:22,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:09:22,746 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 804 transitions. [2020-10-13 06:09:22,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-10-13 06:09:22,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:22,749 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-13 06:09:22,749 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:09:22,749 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:22,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:22,750 INFO L82 PathProgramCache]: Analyzing trace with hash -621453825, now seen corresponding path program 1 times [2020-10-13 06:09:22,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:22,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [762283051] [2020-10-13 06:09:22,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:22,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:22,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:23,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:23,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:23,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-13 06:09:23,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:09:23,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 420 [2020-10-13 06:09:23,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:23,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:23,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-10-13 06:09:23,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:09:23,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:23,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:23,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:23,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:23,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:23,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:23,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:23,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:23,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:23,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:23,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:23,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:23,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:23,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:23,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:23,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:23,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:23,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:09:23,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:23,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:09:23,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:23,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:23,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:23,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:23,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:23,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:09:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:23,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:23,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:23,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:23,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:23,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:09:23,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:23,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:23,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:23,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:23,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:23,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:09:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:23,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:23,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:23,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:09:23,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:23,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:23,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:23,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:23,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:23,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:23,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:23,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:09:23,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:23,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:23,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:23,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:09:23,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:23,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:09:23,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:23,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:23,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:23,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:09:23,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:23,611 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 137 proven. 4 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-13 06:09:23,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [762283051] [2020-10-13 06:09:23,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:23,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:09:23,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296479871] [2020-10-13 06:09:23,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:09:23,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:23,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:09:23,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:09:23,613 INFO L87 Difference]: Start difference. First operand 761 states and 804 transitions. Second operand 6 states. [2020-10-13 06:09:24,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:24,499 INFO L93 Difference]: Finished difference Result 1539 states and 1627 transitions. [2020-10-13 06:09:24,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:09:24,500 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 239 [2020-10-13 06:09:24,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:24,502 INFO L225 Difference]: With dead ends: 1539 [2020-10-13 06:09:24,502 INFO L226 Difference]: Without dead ends: 761 [2020-10-13 06:09:24,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:09:24,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2020-10-13 06:09:24,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 759. [2020-10-13 06:09:24,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 759 states. [2020-10-13 06:09:24,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 798 transitions. [2020-10-13 06:09:24,520 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 798 transitions. Word has length 239 [2020-10-13 06:09:24,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:24,520 INFO L479 AbstractCegarLoop]: Abstraction has 759 states and 798 transitions. [2020-10-13 06:09:24,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:09:24,520 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 798 transitions. [2020-10-13 06:09:24,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-10-13 06:09:24,523 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:24,523 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:24,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:09:24,524 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:24,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:24,524 INFO L82 PathProgramCache]: Analyzing trace with hash 2003803352, now seen corresponding path program 1 times [2020-10-13 06:09:24,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:24,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1162227837] [2020-10-13 06:09:24,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:24,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:24,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:25,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:25,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:25,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-13 06:09:25,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:09:25,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 882 [2020-10-13 06:09:25,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:25,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:25,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 06:09:25,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:09:25,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:25,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:25,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:25,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:25,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:25,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:25,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:25,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:25,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:25,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:25,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:25,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:25,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:25,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:25,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:25,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:25,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:25,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:09:25,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:25,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:09:25,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:25,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:25,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:25,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:25,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:25,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:09:25,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:25,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:25,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:25,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:25,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:25,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:09:25,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:25,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:25,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:25,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:25,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:25,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:09:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:25,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:25,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:25,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:09:25,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:25,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:09:25,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:25,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:25,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:25,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:25,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:25,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:09:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:25,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:25,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:25,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:09:25,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:25,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:09:25,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:25,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:25,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:25,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:25,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:25,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:09:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:25,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:25,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:25,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:09:25,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:25,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:09:25,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:25,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:25,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:25,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:09:25,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:25,875 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 154 proven. 5 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-10-13 06:09:25,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1162227837] [2020-10-13 06:09:25,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:25,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:09:25,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175188760] [2020-10-13 06:09:25,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:09:25,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:25,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:09:25,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:09:25,877 INFO L87 Difference]: Start difference. First operand 759 states and 798 transitions. Second operand 7 states. [2020-10-13 06:09:26,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:26,896 INFO L93 Difference]: Finished difference Result 1533 states and 1623 transitions. [2020-10-13 06:09:26,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:09:26,897 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 257 [2020-10-13 06:09:26,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:26,901 INFO L225 Difference]: With dead ends: 1533 [2020-10-13 06:09:26,901 INFO L226 Difference]: Without dead ends: 761 [2020-10-13 06:09:26,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:09:26,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2020-10-13 06:09:26,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 759. [2020-10-13 06:09:26,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 759 states. [2020-10-13 06:09:26,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 797 transitions. [2020-10-13 06:09:26,919 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 797 transitions. Word has length 257 [2020-10-13 06:09:26,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:26,919 INFO L479 AbstractCegarLoop]: Abstraction has 759 states and 797 transitions. [2020-10-13 06:09:26,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:09:26,919 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 797 transitions. [2020-10-13 06:09:26,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-10-13 06:09:26,922 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:26,922 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:26,922 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 06:09:26,923 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:26,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:26,923 INFO L82 PathProgramCache]: Analyzing trace with hash 21083851, now seen corresponding path program 1 times [2020-10-13 06:09:26,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:26,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1388059642] [2020-10-13 06:09:26,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:27,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:27,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:27,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:27,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-10-13 06:09:27,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:09:27,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 754 [2020-10-13 06:09:27,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:27,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:27,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 06:09:27,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:09:27,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:27,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:27,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:27,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:27,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:27,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:27,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:27,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:27,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:27,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:27,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:27,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:27,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:27,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:27,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:27,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:27,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:09:27,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:27,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:09:27,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:27,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:27,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:27,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:27,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:27,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:09:27,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:27,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:27,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:27,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:27,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:27,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:09:27,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:27,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:27,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:27,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:27,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:27,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:09:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:27,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:27,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:27,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:09:27,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:27,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:09:27,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:27,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:27,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:27,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:27,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:27,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:09:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:27,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:27,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:27,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:09:27,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:27,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:09:27,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:27,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:27,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:27,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:09:27,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:28,095 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 154 proven. 4 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-10-13 06:09:28,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1388059642] [2020-10-13 06:09:28,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:28,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:09:28,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049853691] [2020-10-13 06:09:28,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:09:28,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:28,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:09:28,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:09:28,097 INFO L87 Difference]: Start difference. First operand 759 states and 797 transitions. Second operand 5 states. [2020-10-13 06:09:28,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:28,978 INFO L93 Difference]: Finished difference Result 1539 states and 1628 transitions. [2020-10-13 06:09:28,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:09:28,979 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 256 [2020-10-13 06:09:28,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:28,981 INFO L225 Difference]: With dead ends: 1539 [2020-10-13 06:09:28,982 INFO L226 Difference]: Without dead ends: 761 [2020-10-13 06:09:28,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 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 06:09:28,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2020-10-13 06:09:28,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 759. [2020-10-13 06:09:28,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 759 states. [2020-10-13 06:09:28,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 794 transitions. [2020-10-13 06:09:28,998 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 794 transitions. Word has length 256 [2020-10-13 06:09:28,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:28,998 INFO L479 AbstractCegarLoop]: Abstraction has 759 states and 794 transitions. [2020-10-13 06:09:28,998 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:09:28,998 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 794 transitions. [2020-10-13 06:09:29,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-10-13 06:09:29,001 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:29,001 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:29,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 06:09:29,001 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:29,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:29,002 INFO L82 PathProgramCache]: Analyzing trace with hash -148755322, now seen corresponding path program 1 times [2020-10-13 06:09:29,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:29,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717382357] [2020-10-13 06:09:29,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:29,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:29,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:29,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:29,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:29,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:29,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-13 06:09:29,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:09:29,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 870 [2020-10-13 06:09:29,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:29,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:29,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-13 06:09:29,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 06:09:29,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:30,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:30,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:30,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:30,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:30,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:30,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:30,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:30,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:30,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:30,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:30,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:30,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:30,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:30,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:30,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:30,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:09:30,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:30,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:09:30,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:30,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:30,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:30,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:30,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:30,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:09:30,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:30,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:30,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:30,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:30,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:30,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:09:30,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:30,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:30,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:30,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:30,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:30,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:09:30,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:30,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:30,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:30,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:09:30,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:30,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:09:30,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:30,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:30,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:30,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:30,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:30,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:09:30,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:30,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:30,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:30,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:09:30,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:30,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:09:30,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:30,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:30,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:30,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:09:30,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:30,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:09:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:30,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:30,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:30,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 06:09:30,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:30,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:09:30,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:30,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:30,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:09:30,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 06:09:30,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:30,213 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 233 proven. 2 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-13 06:09:30,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717382357] [2020-10-13 06:09:30,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:30,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:09:30,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997750846] [2020-10-13 06:09:30,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:09:30,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:30,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:09:30,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:09:30,215 INFO L87 Difference]: Start difference. First operand 759 states and 794 transitions. Second operand 7 states. [2020-10-13 06:09:31,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:31,333 INFO L93 Difference]: Finished difference Result 1595 states and 1691 transitions. [2020-10-13 06:09:31,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 06:09:31,334 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 262 [2020-10-13 06:09:31,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:31,337 INFO L225 Difference]: With dead ends: 1595 [2020-10-13 06:09:31,337 INFO L226 Difference]: Without dead ends: 902 [2020-10-13 06:09:31,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-13 06:09:31,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2020-10-13 06:09:31,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 898. [2020-10-13 06:09:31,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-10-13 06:09:31,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 940 transitions. [2020-10-13 06:09:31,356 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 940 transitions. Word has length 262 [2020-10-13 06:09:31,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:31,357 INFO L479 AbstractCegarLoop]: Abstraction has 898 states and 940 transitions. [2020-10-13 06:09:31,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:09:31,357 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 940 transitions. [2020-10-13 06:09:31,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-10-13 06:09:31,360 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:31,360 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 06:09:31,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 06:09:31,360 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:31,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:31,361 INFO L82 PathProgramCache]: Analyzing trace with hash 968548458, now seen corresponding path program 1 times [2020-10-13 06:09:31,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:31,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484666559] [2020-10-13 06:09:31,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:31,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:31,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:31,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:31,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-13 06:09:31,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:09:31,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 563 [2020-10-13 06:09:31,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:31,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:31,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-13 06:09:31,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 06:09:31,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:32,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:32,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:32,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:32,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:32,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:32,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:32,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:32,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:32,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:32,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:32,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:32,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:32,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:32,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:32,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:09:32,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:32,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:09:32,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:32,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:32,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:32,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:32,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:32,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:09:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:32,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:32,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:32,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:32,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:32,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:09:32,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:32,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:32,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:32,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:32,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:32,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:09:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:32,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:32,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:32,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:09:32,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:32,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:09:32,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:32,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:32,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:32,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:32,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:32,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:09:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:32,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:32,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:32,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:09:32,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:32,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:09:32,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:32,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:32,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:32,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:32,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:32,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:09:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:32,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:32,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:32,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 06:09:32,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:32,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:09:32,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:32,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:32,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:32,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 06:09:32,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:32,383 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 177 proven. 5 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-10-13 06:09:32,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484666559] [2020-10-13 06:09:32,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:32,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:09:32,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919479465] [2020-10-13 06:09:32,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:09:32,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:32,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:09:32,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:09:32,385 INFO L87 Difference]: Start difference. First operand 898 states and 940 transitions. Second operand 5 states. [2020-10-13 06:09:33,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:33,225 INFO L93 Difference]: Finished difference Result 1673 states and 1756 transitions. [2020-10-13 06:09:33,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:09:33,227 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 280 [2020-10-13 06:09:33,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:33,230 INFO L225 Difference]: With dead ends: 1673 [2020-10-13 06:09:33,230 INFO L226 Difference]: Without dead ends: 763 [2020-10-13 06:09:33,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 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 06:09:33,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2020-10-13 06:09:33,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 761. [2020-10-13 06:09:33,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 761 states. [2020-10-13 06:09:33,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 797 transitions. [2020-10-13 06:09:33,246 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 797 transitions. Word has length 280 [2020-10-13 06:09:33,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:33,247 INFO L479 AbstractCegarLoop]: Abstraction has 761 states and 797 transitions. [2020-10-13 06:09:33,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:09:33,247 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 797 transitions. [2020-10-13 06:09:33,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2020-10-13 06:09:33,250 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:33,250 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:33,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 06:09:33,251 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:33,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:33,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1897646509, now seen corresponding path program 1 times [2020-10-13 06:09:33,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:33,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1656413733] [2020-10-13 06:09:33,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:33,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:33,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:33,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:34,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:34,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:34,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-10-13 06:09:34,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:09:34,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1326 [2020-10-13 06:09:34,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:34,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:34,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:09:34,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 06:09:34,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:34,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:34,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:34,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:34,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:34,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:34,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:09:34,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:34,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:34,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:34,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:34,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:34,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:34,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:34,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:34,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:09:34,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:34,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:09:34,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:34,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:34,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:34,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:34,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:34,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:09:34,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:34,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:34,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:34,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:34,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:34,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:09:34,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:34,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:34,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:34,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:34,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:34,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:09:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:34,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:34,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:34,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:09:34,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:34,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:34,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:34,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:34,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:34,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:34,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:34,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:09:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:34,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:34,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:34,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:09:34,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:34,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:09:34,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:34,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:34,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:34,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:34,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:34,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:09:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:34,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:34,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:34,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:09:34,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:34,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:09:34,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:34,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:34,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:34,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:34,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:34,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:09:34,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:34,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:34,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:34,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 06:09:34,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:34,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:09:34,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:34,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:34,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:34,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:09:34,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:35,067 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 187 proven. 6 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-10-13 06:09:35,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1656413733] [2020-10-13 06:09:35,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:35,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:09:35,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783360223] [2020-10-13 06:09:35,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:09:35,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:35,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:09:35,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:09:35,069 INFO L87 Difference]: Start difference. First operand 761 states and 797 transitions. Second operand 6 states. [2020-10-13 06:09:35,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:35,918 INFO L93 Difference]: Finished difference Result 1534 states and 1617 transitions. [2020-10-13 06:09:35,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:09:35,919 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 291 [2020-10-13 06:09:35,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:35,921 INFO L225 Difference]: With dead ends: 1534 [2020-10-13 06:09:35,921 INFO L226 Difference]: Without dead ends: 763 [2020-10-13 06:09:35,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:09:35,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2020-10-13 06:09:35,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 761. [2020-10-13 06:09:35,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 761 states. [2020-10-13 06:09:35,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 796 transitions. [2020-10-13 06:09:35,938 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 796 transitions. Word has length 291 [2020-10-13 06:09:35,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:35,938 INFO L479 AbstractCegarLoop]: Abstraction has 761 states and 796 transitions. [2020-10-13 06:09:35,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:09:35,938 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 796 transitions. [2020-10-13 06:09:35,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-10-13 06:09:35,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:35,940 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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] [2020-10-13 06:09:35,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 06:09:35,941 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:35,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:35,941 INFO L82 PathProgramCache]: Analyzing trace with hash -126087057, now seen corresponding path program 1 times [2020-10-13 06:09:35,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:35,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [126308567] [2020-10-13 06:09:35,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:35,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:36,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:36,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:36,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:36,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-10-13 06:09:36,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:09:36,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 573 [2020-10-13 06:09:36,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:36,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:36,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:09:36,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-13 06:09:36,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:36,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:36,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:36,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:36,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:36,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:36,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:09:36,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:36,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:36,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:36,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:36,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:36,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:36,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:36,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:36,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:36,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:09:36,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:36,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:09:36,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:36,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:36,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:36,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:36,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:36,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:09:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:36,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:36,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:36,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:36,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:36,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:09:36,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:36,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:36,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:36,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:36,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:36,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:09:36,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:36,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:36,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:36,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:09:36,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:36,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:09:36,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:36,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:36,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:36,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:36,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:36,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:09:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:36,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:36,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:36,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 06:09:36,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:36,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 06:09:36,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:36,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:36,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:36,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:09:36,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:37,015 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 193 proven. 4 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-10-13 06:09:37,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [126308567] [2020-10-13 06:09:37,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:37,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:09:37,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070920231] [2020-10-13 06:09:37,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:09:37,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:37,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:09:37,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:09:37,017 INFO L87 Difference]: Start difference. First operand 761 states and 796 transitions. Second operand 6 states. [2020-10-13 06:09:37,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:37,964 INFO L93 Difference]: Finished difference Result 1543 states and 1624 transitions. [2020-10-13 06:09:37,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:09:37,965 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 295 [2020-10-13 06:09:37,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:37,968 INFO L225 Difference]: With dead ends: 1543 [2020-10-13 06:09:37,968 INFO L226 Difference]: Without dead ends: 703 [2020-10-13 06:09:37,969 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:09:37,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2020-10-13 06:09:37,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 701. [2020-10-13 06:09:37,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 701 states. [2020-10-13 06:09:37,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 732 transitions. [2020-10-13 06:09:37,981 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 732 transitions. Word has length 295 [2020-10-13 06:09:37,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:37,982 INFO L479 AbstractCegarLoop]: Abstraction has 701 states and 732 transitions. [2020-10-13 06:09:37,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:09:37,982 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 732 transitions. [2020-10-13 06:09:37,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2020-10-13 06:09:37,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:37,985 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-13 06:09:37,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 06:09:37,985 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:37,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:37,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1020999164, now seen corresponding path program 1 times [2020-10-13 06:09:37,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:37,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1106592254] [2020-10-13 06:09:37,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:38,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:38,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:38,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:38,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:38,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 325 [2020-10-13 06:09:38,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:09:38,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 897 [2020-10-13 06:09:38,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:38,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:38,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-10-13 06:09:38,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:09:38,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:39,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:39,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:39,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:39,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:39,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:39,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:39,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:39,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:39,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:39,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:39,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:39,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:39,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:39,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:39,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:09:39,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:39,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:09:39,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:39,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:39,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:39,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:39,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:39,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:09:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:39,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:39,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:39,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:39,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:39,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:09:39,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:39,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:39,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:39,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:39,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:39,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:09:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:39,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:39,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:39,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:09:39,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:39,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:09:39,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:39,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:39,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:39,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:39,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:39,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:09:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:39,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:39,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:39,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:09:39,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:39,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:09:39,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:39,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:39,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:39,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:39,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:39,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:09:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:39,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:39,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:39,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 06:09:39,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:39,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 06:09:39,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:39,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:39,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:39,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:09:39,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:39,378 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 204 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-13 06:09:39,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1106592254] [2020-10-13 06:09:39,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:39,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:09:39,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079151936] [2020-10-13 06:09:39,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:09:39,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:39,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:09:39,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:09:39,380 INFO L87 Difference]: Start difference. First operand 701 states and 732 transitions. Second operand 5 states. [2020-10-13 06:09:40,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:40,208 INFO L93 Difference]: Finished difference Result 1416 states and 1487 transitions. [2020-10-13 06:09:40,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:09:40,209 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 307 [2020-10-13 06:09:40,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:40,212 INFO L225 Difference]: With dead ends: 1416 [2020-10-13 06:09:40,212 INFO L226 Difference]: Without dead ends: 701 [2020-10-13 06:09:40,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 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 06:09:40,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2020-10-13 06:09:40,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 699. [2020-10-13 06:09:40,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-10-13 06:09:40,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 727 transitions. [2020-10-13 06:09:40,226 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 727 transitions. Word has length 307 [2020-10-13 06:09:40,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:40,226 INFO L479 AbstractCegarLoop]: Abstraction has 699 states and 727 transitions. [2020-10-13 06:09:40,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:09:40,226 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 727 transitions. [2020-10-13 06:09:40,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-10-13 06:09:40,230 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:40,230 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-13 06:09:40,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 06:09:40,231 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:40,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:40,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1070788379, now seen corresponding path program 1 times [2020-10-13 06:09:40,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:40,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1882031304] [2020-10-13 06:09:40,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:40,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:40,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:40,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:40,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-13 06:09:40,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:09:40,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 657 [2020-10-13 06:09:40,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:40,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:40,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 235 [2020-10-13 06:09:40,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:09:40,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:41,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:41,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:41,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:41,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:41,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:41,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:41,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:41,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:41,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:41,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:41,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:41,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:41,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:41,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:41,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:41,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:09:41,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:41,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:09:41,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:41,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:41,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:41,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:41,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:41,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:09:41,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:41,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:41,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:41,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:41,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:41,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:09:41,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:41,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:41,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:41,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:41,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:41,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:09:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:41,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:41,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:41,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:09:41,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:41,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:41,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:41,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:41,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:41,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:41,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:41,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:09:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:41,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:41,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:41,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:09:41,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:41,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:09:41,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:41,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:41,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:41,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:41,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:41,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:09:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:41,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:41,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:41,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:09:41,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:41,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:09:41,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:41,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:41,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:41,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:41,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:41,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:09:41,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:41,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:41,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:41,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 06:09:41,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:41,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:09:41,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:41,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:41,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:41,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 06:09:41,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:41,432 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 206 proven. 6 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2020-10-13 06:09:41,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1882031304] [2020-10-13 06:09:41,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:41,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:09:41,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424286835] [2020-10-13 06:09:41,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:09:41,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:41,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:09:41,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:09:41,433 INFO L87 Difference]: Start difference. First operand 699 states and 727 transitions. Second operand 5 states. [2020-10-13 06:09:42,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:42,312 INFO L93 Difference]: Finished difference Result 776 states and 804 transitions. [2020-10-13 06:09:42,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:09:42,313 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 310 [2020-10-13 06:09:42,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:42,315 INFO L225 Difference]: With dead ends: 776 [2020-10-13 06:09:42,315 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 06:09:42,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 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 06:09:42,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 06:09:42,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 562. [2020-10-13 06:09:42,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2020-10-13 06:09:42,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 588 transitions. [2020-10-13 06:09:42,325 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 588 transitions. Word has length 310 [2020-10-13 06:09:42,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:42,325 INFO L479 AbstractCegarLoop]: Abstraction has 562 states and 588 transitions. [2020-10-13 06:09:42,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:09:42,325 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 588 transitions. [2020-10-13 06:09:42,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2020-10-13 06:09:42,327 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:42,327 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-13 06:09:42,327 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 06:09:42,327 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:42,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:42,328 INFO L82 PathProgramCache]: Analyzing trace with hash -381016197, now seen corresponding path program 1 times [2020-10-13 06:09:42,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:42,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1497124975] [2020-10-13 06:09:42,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:42,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:42,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:42,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:43,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:43,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:44,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:44,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 331 [2020-10-13 06:09:44,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:09:44,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1722 [2020-10-13 06:09:44,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:44,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:44,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-13 06:09:44,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 06:09:44,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:44,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:44,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:44,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:44,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:44,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:44,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:44,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:44,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:44,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:44,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:44,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:44,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:44,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:44,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:44,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:09:44,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:44,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:09:44,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:44,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:44,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:44,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:44,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:44,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:09:44,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:44,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:44,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:44,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:44,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:44,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:09:44,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:44,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:44,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:44,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:44,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:44,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:09:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:44,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:44,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:44,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:09:44,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:44,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:44,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:44,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:44,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:44,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:44,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:44,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:09:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:44,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:44,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:44,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:09:44,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:44,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:09:44,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:44,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:44,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:44,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:44,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:44,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:09:44,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:44,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:44,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:44,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:09:44,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:44,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:09:44,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:44,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:44,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:44,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 06:09:44,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:44,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:09:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:44,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:44,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:44,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 06:09:44,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:44,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 06:09:44,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:44,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:44,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:09:44,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:09:44,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:44,441 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 350 proven. 2 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2020-10-13 06:09:44,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1497124975] [2020-10-13 06:09:44,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:44,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:09:44,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031585075] [2020-10-13 06:09:44,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:09:44,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:44,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:09:44,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:09:44,443 INFO L87 Difference]: Start difference. First operand 562 states and 588 transitions. Second operand 7 states. [2020-10-13 06:09:45,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:45,672 INFO L93 Difference]: Finished difference Result 1197 states and 1271 transitions. [2020-10-13 06:09:45,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 06:09:45,673 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 311 [2020-10-13 06:09:45,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:45,674 INFO L225 Difference]: With dead ends: 1197 [2020-10-13 06:09:45,674 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:09:45,676 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:09:45,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:09:45,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:09:45,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:09:45,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:09:45,677 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 311 [2020-10-13 06:09:45,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:45,677 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:09:45,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:09:45,678 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:09:45,678 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:09:45,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 06:09:45,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:09:46,558 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 182 [2020-10-13 06:09:46,807 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 187 [2020-10-13 06:09:46,943 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 40 [2020-10-13 06:09:51,124 WARN L193 SmtUtils]: Spent 4.16 s on a formula simplification. DAG size of input: 310 DAG size of output: 198 [2020-10-13 06:09:52,761 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 183 DAG size of output: 118 [2020-10-13 06:09:54,133 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 187 DAG size of output: 86 [2020-10-13 06:09:54,138 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:09:54,138 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-13 06:09:54,139 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:09:54,139 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-13 06:09:54,139 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-13 06:09:54,139 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,139 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,140 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,140 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,140 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,140 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,140 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-13 06:09:54,140 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-13 06:09:54,140 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-13 06:09:54,140 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-13 06:09:54,141 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-13 06:09:54,141 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-13 06:09:54,141 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-13 06:09:54,141 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-13 06:09:54,141 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-13 06:09:54,141 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-13 06:09:54,141 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,141 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,141 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,142 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,142 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,142 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,142 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-13 06:09:54,142 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-13 06:09:54,142 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-13 06:09:54,142 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-13 06:09:54,142 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-13 06:09:54,142 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-13 06:09:54,143 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-13 06:09:54,143 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-13 06:09:54,143 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-13 06:09:54,143 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-13 06:09:54,143 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-13 06:09:54,143 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 443) no Hoare annotation was computed. [2020-10-13 06:09:54,143 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-13 06:09:54,143 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-13 06:09:54,143 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-13 06:09:54,144 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-13 06:09:54,144 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,144 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,144 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,144 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,144 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,144 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-13 06:09:54,144 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-13 06:09:54,144 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-13 06:09:54,145 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-13 06:09:54,145 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-13 06:09:54,145 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-13 06:09:54,145 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-13 06:09:54,145 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-13 06:09:54,145 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-13 06:09:54,145 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,145 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,145 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,146 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,146 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,148 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-13 06:09:54,148 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-13 06:09:54,148 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-13 06:09:54,148 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-13 06:09:54,149 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-13 06:09:54,149 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-13 06:09:54,149 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-13 06:09:54,149 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-13 06:09:54,149 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-13 06:09:54,149 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-13 06:09:54,149 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-13 06:09:54,149 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-13 06:09:54,149 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-13 06:09:54,150 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,150 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,150 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,150 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,150 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,150 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-13 06:09:54,150 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-13 06:09:54,150 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-13 06:09:54,150 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-13 06:09:54,151 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-13 06:09:54,151 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-13 06:09:54,151 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-13 06:09:54,151 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-13 06:09:54,151 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-13 06:09:54,151 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,151 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,151 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,151 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,152 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,152 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,152 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-13 06:09:54,152 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,152 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-13 06:09:54,152 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-13 06:09:54,152 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-13 06:09:54,152 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-13 06:09:54,152 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-13 06:09:54,152 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-13 06:09:54,153 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-13 06:09:54,153 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-13 06:09:54,153 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-13 06:09:54,153 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-13 06:09:54,153 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-13 06:09:54,153 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-13 06:09:54,153 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-13 06:09:54,153 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,153 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,153 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,154 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,154 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,154 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-13 06:09:54,154 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-13 06:09:54,154 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-13 06:09:54,154 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-13 06:09:54,154 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-13 06:09:54,155 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-13 06:09:54,155 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-13 06:09:54,155 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-13 06:09:54,155 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,155 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,155 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,155 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,155 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,155 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-13 06:09:54,155 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-13 06:09:54,155 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-13 06:09:54,156 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-13 06:09:54,156 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-13 06:09:54,156 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-13 06:09:54,156 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-13 06:09:54,156 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-13 06:09:54,156 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-13 06:09:54,156 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-13 06:09:54,157 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse9 (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4)))) (.cse26 (not (<= |old(~a7~0)| 0))) (.cse7 (not (= |calculate_output_#in~input| 3))) (.cse8 (not (= |calculate_output_#in~input| 2))) (.cse10 (not (= |calculate_output_#in~input| 1))) (.cse11 (not (= |calculate_output_#in~input| 5))) (.cse12 (not (= |calculate_output_#in~input| 6))) (.cse20 (= |old(~a7~0)| 1))) (let ((.cse15 (= ~a16~0 4)) (.cse19 (not (= 4 |old(~a16~0)|))) (.cse22 (not .cse20)) (.cse27 (not (<= |old(~a20~0)| 1))) (.cse28 (not (= |old(~a17~0)| |old(~a20~0)|))) (.cse21 (not (= 14 |old(~a8~0)|))) (.cse29 (= ~a21~0 ~a7~0)) (.cse43 (= 14 ~a8~0)) (.cse32 (not (= |old(~a7~0)| |old(~a21~0)|))) (.cse33 (not (= 0 |old(~a17~0)|))) (.cse2 (= ~a21~0 |old(~a21~0)|)) (.cse42 (and .cse7 .cse8 (not (= |calculate_output_#in~input| 4)) .cse10 .cse11 .cse12)) (.cse44 (= 5 ~a16~0)) (.cse24 (not (= 5 |old(~a16~0)|))) (.cse34 (and .cse26 (not (<= 2 |old(~a7~0)|)))) (.cse39 (not (<= |old(~a16~0)| 6))) (.cse37 (not (<= |old(~a8~0)| 15))) (.cse40 (not (<= 15 |old(~a8~0)|))) (.cse35 (<= ~a8~0 15)) (.cse36 (<= 15 ~a8~0)) (.cse38 (not (<= |old(~a21~0)| 1))) (.cse41 (not (<= 1 |old(~a21~0)|))) (.cse5 (= ~a8~0 |old(~a8~0)|)) (.cse30 (<= ~a21~0 1)) (.cse31 (<= 1 ~a21~0)) (.cse23 (not (<= |old(~a17~0)| 0))) (.cse6 (not (= |old(~a17~0)| 1))) (.cse45 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) .cse9 (or (not (<= |calculate_output_#in~input| 2)) (not (<= 2 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (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))))) (.cse1 (= ~a7~0 |old(~a7~0)|)) (.cse0 (= ~a17~0 |old(~a17~0)|)) (.cse13 (= ~a21~0 1)) (.cse3 (= ~a20~0 |old(~a20~0)|)) (.cse4 (= ~a16~0 |old(~a16~0)|)) (.cse14 (= ~a8~0 15)) (.cse16 (not (= 15 |old(~a8~0)|))) (.cse17 (not (= |old(~a21~0)| 1))) (.cse18 (not (= ~a12~0 8))) (.cse25 (not (<= |old(~a20~0)| 0)))) (and (or (not (<= |old(~a8~0)| 13)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5)) (or .cse6 (= |old(~a20~0)| 1) (and .cse7 .cse8 .cse9 .cse10 .cse11 .cse12) (and .cse1 .cse0 .cse13 .cse3 .cse14 .cse15) .cse16 .cse17 .cse18 .cse19 .cse20) (or .cse21 .cse22 .cse23 .cse24 (and .cse1 .cse0 .cse13 .cse3 .cse4 .cse5) .cse17 .cse18 .cse25) (or .cse6 (and .cse1 .cse0 .cse13 .cse3 .cse5 .cse15) .cse26 (not (<= |old(~a8~0)| 14)) .cse17 (not (<= 1 |old(~a20~0)|)) .cse18 .cse19 .cse27) (or .cse28 .cse22 .cse24 (and .cse0 .cse29 .cse3 .cse4 .cse14 .cse30 .cse31) .cse16 .cse18 .cse32 .cse33) (or .cse34 (and .cse1 .cse0 .cse4 (< 0 ~a20~0) .cse30 (<= ~a20~0 1) .cse31 .cse35 .cse36) (not (<= 2 |old(~a17~0)|)) .cse37 .cse38 .cse27 .cse39 (not (< 5 |old(~a16~0)|)) .cse40 .cse41 .cse42 .cse18 (not (< 0 |old(~a20~0)|))) (or .cse21 .cse28 (not (= 0 |old(~a20~0)|)) (and .cse0 .cse13 .cse3 .cse43 .cse44 (= ~a20~0 ~a7~0)) (not (= |old(~a7~0)| |old(~a20~0)|)) .cse24 .cse17 .cse18) (or .cse21 (not (= |old(~a20~0)| |old(~a21~0)|)) .cse24 (and .cse0 .cse29 .cse3 .cse43 (= ~a21~0 ~a20~0) .cse44) .cse17 .cse18 .cse32 .cse33) (or .cse34 (and .cse1 .cse2 .cse3 .cse4 .cse5 (= ~a17~0 1)) (not (<= 5 |old(~a16~0)|)) (and (not (<= 2 |old(~a20~0)|)) .cse25) .cse6 .cse37 (not (<= |old(~a16~0)| 5)) .cse40 .cse17 .cse42 .cse18) (or (and .cse0 .cse13 .cse3 .cse14 .cse44 (= ~a7~0 0)) .cse6 .cse45 .cse24 .cse16 .cse17 .cse18 (not (= |old(~a7~0)| 0))) (or .cse34 .cse39 .cse37 .cse38 .cse45 .cse40 .cse41 (and .cse1 .cse0 .cse3 .cse4 .cse30 .cse31 .cse35 .cse36) .cse23 .cse18) (or .cse38 .cse41 (not (<= |old(~a16~0)| 4)) (and .cse0 .cse1 .cse3 .cse4 .cse5 .cse30 .cse31) .cse23) (or .cse6 .cse45 (not (= 6 |old(~a16~0)|)) (and .cse1 .cse0 .cse13 .cse3 .cse4 .cse14) .cse16 .cse17 .cse18 .cse25 .cse20)))) [2020-10-13 06:09:54,157 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-13 06:09:54,157 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,157 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,157 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,158 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,158 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-13 06:09:54,158 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,158 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,158 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-13 06:09:54,158 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-13 06:09:54,158 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-13 06:09:54,158 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-13 06:09:54,158 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-13 06:09:54,158 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-13 06:09:54,158 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-13 06:09:54,159 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-13 06:09:54,159 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-13 06:09:54,159 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-13 06:09:54,159 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-13 06:09:54,159 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-13 06:09:54,159 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,159 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,159 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,159 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,159 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,160 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-13 06:09:54,160 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,160 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-13 06:09:54,160 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-13 06:09:54,160 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-13 06:09:54,160 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-13 06:09:54,160 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-13 06:09:54,160 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-13 06:09:54,160 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-13 06:09:54,160 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-13 06:09:54,160 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-13 06:09:54,161 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-13 06:09:54,161 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-13 06:09:54,161 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-13 06:09:54,161 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-13 06:09:54,161 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-13 06:09:54,161 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,161 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,161 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,161 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,162 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,162 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:54,162 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-13 06:09:54,162 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-13 06:09:54,162 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-13 06:09:54,162 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-13 06:09:54,162 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-13 06:09:54,162 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-13 06:09:54,162 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-13 06:09:54,162 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-13 06:09:54,162 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-13 06:09:54,162 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-13 06:09:54,162 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:09:54,162 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a12~0 8) (= ~a8~0 15) (= ~a20~0 1) (<= ~a21~0 1) (<= 1 ~a21~0) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-13 06:09:54,163 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:09:54,163 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:09:54,163 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 15) (= 5 ~a16~0) (= ~a7~0 0)) (not (= |old(~a17~0)| 1)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a21~0)| 1)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-13 06:09:54,163 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:09:54,163 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse8 (= ~a7~0 1)) (.cse21 (= 5 main_~input~0)) (.cse22 (= 6 main_~input~0)) (.cse23 (= 3 main_~input~0)) (.cse24 (= main_~input~0 1)) (.cse25 (= 2 main_~input~0)) (.cse27 (<= ~a7~0 0))) (let ((.cse5 (= ~a17~0 0)) (.cse10 (<= ~a20~0 0)) (.cse11 (<= ~a16~0 6)) (.cse6 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 2 main_~input~0) (<= main_~input~0 2)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) (and (<= main_~input~0 1) (<= 1 main_~input~0)) (and (<= main_~input~0 5) (<= 5 main_~input~0)))) (.cse14 (or (< 1 ~a7~0) .cse27)) (.cse7 (= ~a8~0 15)) (.cse2 (= ~a21~0 ~a20~0)) (.cse18 (= ~a20~0 ~a17~0)) (.cse0 (= 14 ~a8~0)) (.cse9 (<= ~a17~0 0)) (.cse13 (or .cse21 .cse22 (= main_~input~0 4) .cse23 .cse24 .cse25)) (.cse19 (not .cse8)) (.cse4 (= 5 ~a16~0)) (.cse16 (<= ~a8~0 15)) (.cse17 (<= 15 ~a8~0)) (.cse12 (<= 1 ~a20~0)) (.cse26 (= ~a16~0 4)) (.cse1 (<= ~a21~0 1)) (.cse15 (<= ~a20~0 1)) (.cse3 (<= 1 ~a21~0)) (.cse20 (= ~a17~0 1))) (or (and (= ~a21~0 ~a7~0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) .cse6 .cse7 .cse4 (= ~a7~0 0)) (and .cse8 .cse0 .cse9 .cse1 .cse3 .cse4 .cse10) (not (= |old(~a20~0)| 1)) (and .cse11 .cse12 (<= 6 ~a16~0) .cse13 .cse14 .cse1 .cse15 .cse3 .cse16 (< 1 ~a17~0) .cse17) (and .cse18 .cse8 .cse7 .cse1 .cse3 .cse4 .cse5) (and (= ~a16~0 6) .cse6 .cse7 .cse1 .cse3 .cse19 .cse20 .cse10) (not (= |old(~a21~0)| 1)) (and .cse11 .cse6 .cse9 .cse14 .cse1 .cse3 .cse16 .cse17) (and (or .cse21 .cse22 (= ~a16~0 main_~input~0) .cse23 .cse24 .cse25) .cse7 (not .cse2) .cse1 .cse26 .cse3 .cse19 .cse20) (and (= ~a20~0 0) .cse18 .cse0 .cse1 .cse3 .cse4 (= ~a20~0 ~a7~0)) (not (= |old(~a17~0)| 1)) (and (<= ~a16~0 4) .cse9 .cse1 .cse3) (and .cse13 .cse1 .cse3 .cse19 .cse4 .cse16 (not (= ~a20~0 1)) .cse17 .cse20) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (<= ~a8~0 13) (and .cse12 (<= ~a8~0 14) .cse27 .cse26 .cse1 .cse15 .cse3 .cse20) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8))))) [2020-10-13 06:09:54,163 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-13 06:09:54,163 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-13 06:09:54,163 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse20 (<= ~a7~0 0)) (.cse16 (= ~a7~0 1))) (let ((.cse2 (= ~a21~0 ~a20~0)) (.cse0 (= 14 ~a8~0)) (.cse6 (not .cse16)) (.cse18 (<= ~a20~0 0)) (.cse10 (<= ~a16~0 6)) (.cse12 (or (< 1 ~a7~0) .cse20)) (.cse7 (<= ~a8~0 15)) (.cse8 (<= 15 ~a8~0)) (.cse17 (<= ~a17~0 0)) (.cse19 (= ~a20~0 ~a17~0)) (.cse14 (= ~a8~0 15)) (.cse4 (= 5 ~a16~0)) (.cse5 (= ~a17~0 0)) (.cse11 (<= 1 ~a20~0)) (.cse15 (= ~a16~0 4)) (.cse1 (<= ~a21~0 1)) (.cse13 (<= ~a20~0 1)) (.cse3 (<= 1 ~a21~0)) (.cse9 (= ~a17~0 1))) (or (and (= ~a21~0 ~a7~0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse1 .cse3 .cse6 .cse4 .cse7 (not (= ~a20~0 1)) .cse8 .cse9) (and .cse10 .cse11 (<= 6 ~a16~0) .cse12 .cse1 .cse13 .cse3 .cse7 (< 1 ~a17~0) .cse8) (and .cse14 (not .cse2) .cse1 .cse15 .cse3 .cse6 .cse9) (and .cse16 .cse0 .cse17 .cse1 .cse3 .cse4 .cse18) (not (= |old(~a20~0)| 1)) (not (= |old(~a21~0)| 1)) (and (= ~a20~0 0) .cse19 .cse0 .cse1 .cse3 .cse4 (= ~a20~0 ~a7~0)) (not (= |old(~a17~0)| 1)) (and (= ~a16~0 6) .cse14 .cse1 .cse3 .cse6 .cse9 .cse18) (and .cse10 .cse17 .cse12 .cse1 .cse3 .cse7 .cse8) (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) .cse14 .cse4 (= ~a7~0 0)) (and (<= ~a16~0 4) .cse17 .cse1 .cse3) (not (= 5 |old(~a16~0)|)) (and .cse19 .cse14 .cse1 .cse3 .cse4 .cse5) (not (= 15 |old(~a8~0)|)) (<= ~a8~0 13) (and .cse11 (<= ~a8~0 14) .cse20 .cse15 .cse1 .cse13 .cse3 .cse9) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8))))) [2020-10-13 06:09:54,164 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:09:54,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:09:54 BoogieIcfgContainer [2020-10-13 06:09:54,196 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:09:54,198 INFO L168 Benchmark]: Toolchain (without parser) took 133816.84 ms. Allocated memory was 138.9 MB in the beginning and 1.1 GB in the end (delta: 1.0 GB). Free memory was 100.6 MB in the beginning and 755.1 MB in the end (delta: -654.6 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2020-10-13 06:09:54,199 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.1 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-10-13 06:09:54,199 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.30 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.1 MB in the beginning and 168.9 MB in the end (delta: -68.7 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. [2020-10-13 06:09:54,200 INFO L168 Benchmark]: Boogie Preprocessor took 126.60 ms. Allocated memory is still 202.9 MB. Free memory was 168.9 MB in the beginning and 163.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2020-10-13 06:09:54,200 INFO L168 Benchmark]: RCFGBuilder took 1188.07 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 163.7 MB in the beginning and 176.1 MB in the end (delta: -12.4 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2020-10-13 06:09:54,201 INFO L168 Benchmark]: TraceAbstraction took 131753.37 ms. Allocated memory was 235.4 MB in the beginning and 1.1 GB in the end (delta: 907.0 MB). Free memory was 174.4 MB in the beginning and 755.1 MB in the end (delta: -580.7 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2020-10-13 06:09:54,203 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.1 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 743.30 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.1 MB in the beginning and 168.9 MB in the end (delta: -68.7 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.60 ms. Allocated memory is still 202.9 MB. Free memory was 168.9 MB in the beginning and 163.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1188.07 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 163.7 MB in the beginning and 176.1 MB in the end (delta: -12.4 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 131753.37 ms. Allocated memory was 235.4 MB in the beginning and 1.1 GB in the end (delta: 907.0 MB). Free memory was 174.4 MB in the beginning and 755.1 MB in the end (delta: -580.7 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 443]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((a21 == a7 && 14 == a8) && a21 <= 1) && a21 == a20) && 1 <= a21) && 5 == a16) && a17 == 0) || (((((((a21 <= 1 && 1 <= a21) && !(a7 == 1)) && 5 == a16) && a8 <= 15) && !(a20 == 1)) && 15 <= a8) && a17 == 1)) || (((((((((a16 <= 6 && 1 <= a20) && 6 <= a16) && (1 < a7 || a7 <= 0)) && a21 <= 1) && a20 <= 1) && 1 <= a21) && a8 <= 15) && 1 < a17) && 15 <= a8)) || ((((((a8 == 15 && !(a21 == a20)) && a21 <= 1) && a16 == 4) && 1 <= a21) && !(a7 == 1)) && a17 == 1)) || ((((((a7 == 1 && 14 == a8) && a17 <= 0) && a21 <= 1) && 1 <= a21) && 5 == a16) && a20 <= 0)) || !(\old(a20) == 1)) || !(\old(a21) == 1)) || ((((((a20 == 0 && a20 == a17) && 14 == a8) && a21 <= 1) && 1 <= a21) && 5 == a16) && a20 == a7)) || !(\old(a17) == 1)) || ((((((a16 == 6 && a8 == 15) && a21 <= 1) && 1 <= a21) && !(a7 == 1)) && a17 == 1) && a20 <= 0)) || ((((((a16 <= 6 && a17 <= 0) && (1 < a7 || a7 <= 0)) && a21 <= 1) && 1 <= a21) && a8 <= 15) && 15 <= a8)) || ((((a17 == \old(a17) && a21 == 1) && a8 == 15) && 5 == a16) && a7 == 0)) || (((a16 <= 4 && a17 <= 0) && a21 <= 1) && 1 <= a21)) || !(5 == \old(a16))) || (((((a20 == a17 && a8 == 15) && a21 <= 1) && 1 <= a21) && 5 == a16) && a17 == 0)) || !(15 == \old(a8))) || a8 <= 13) || (((((((1 <= a20 && a8 <= 14) && a7 <= 0) && a16 == 4) && a21 <= 1) && a20 <= 1) && 1 <= a21) && a17 == 1)) || !(\old(a7) == 0)) || !(a12 == 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 123.1s, OverallIterations: 27, TraceHistogramMax: 7, AutomataDifference: 58.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 701 SDtfs, 9411 SDslu, 1021 SDs, 0 SdLazy, 19697 SolverSat, 1094 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 649 GetRequests, 283 SyntacticMatches, 18 SemanticMatches, 348 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 832 ImplicationChecksByTransitivity, 44.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1102occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 27 MinimizatonAttempts, 305 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 225 PreInvPairs, 285 NumberOfFragments, 1833 HoareAnnotationTreeSize, 225 FomulaSimplifications, 6026 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 5997 FormulaSimplificationTreeSizeReductionInter, 7.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 59.4s InterpolantComputationTime, 5533 NumberOfCodeBlocks, 5533 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 5506 ConstructedInterpolants, 0 QuantifiedInterpolants, 12900127 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 1 PerfectInterpolantSequences, 5590/5665 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...