/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_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:00:39,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:00:39,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:00:40,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:00:40,018 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:00:40,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:00:40,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:00:40,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:00:40,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:00:40,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:00:40,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:00:40,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:00:40,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:00:40,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:00:40,049 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:00:40,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:00:40,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:00:40,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:00:40,057 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:00:40,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:00:40,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:00:40,068 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:00:40,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:00:40,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:00:40,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:00:40,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:00:40,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:00:40,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:00:40,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:00:40,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:00:40,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:00:40,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:00:40,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:00:40,084 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:00:40,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:00:40,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:00:40,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:00:40,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:00:40,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:00:40,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:00:40,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:00:40,089 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 06:00:40,133 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:00:40,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:00:40,135 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:00:40,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:00:40,136 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:00:40,136 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:00:40,136 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:00:40,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:00:40,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:00:40,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:00:40,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:00:40,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:00:40,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:00:40,139 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:00:40,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:00:40,139 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:00:40,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:00:40,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:00:40,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:00:40,140 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:00:40,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:00:40,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:00:40,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:00:40,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:00:40,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:00:40,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:00:40,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:00:40,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:00:40,142 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:00:40,142 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 06:00:40,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:00:40,444 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:00:40,447 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:00:40,449 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:00:40,449 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:00:40,450 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2020-10-13 06:00:40,511 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4a15d2b07/b6977e54048548e7bfa620fc1495c70c/FLAG9359b8887 [2020-10-13 06:00:41,052 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:00:41,053 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2020-10-13 06:00:41,070 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4a15d2b07/b6977e54048548e7bfa620fc1495c70c/FLAG9359b8887 [2020-10-13 06:00:41,359 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4a15d2b07/b6977e54048548e7bfa620fc1495c70c [2020-10-13 06:00:41,368 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:00:41,370 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:00:41,373 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:00:41,373 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:00:41,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:00:41,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:00:41" (1/1) ... [2020-10-13 06:00:41,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@263e4b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:41, skipping insertion in model container [2020-10-13 06:00:41,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:00:41" (1/1) ... [2020-10-13 06:00:41,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:00:41,454 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:00:42,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:00:42,041 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:00:42,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:00:42,195 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:00:42,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:42 WrapperNode [2020-10-13 06:00:42,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:00:42,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:00:42,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:00:42,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:00:42,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:42" (1/1) ... [2020-10-13 06:00:42,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:42" (1/1) ... [2020-10-13 06:00:42,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:42" (1/1) ... [2020-10-13 06:00:42,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:42" (1/1) ... [2020-10-13 06:00:42,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:42" (1/1) ... [2020-10-13 06:00:42,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:42" (1/1) ... [2020-10-13 06:00:42,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:42" (1/1) ... [2020-10-13 06:00:42,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:00:42,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:00:42,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:00:42,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:00:42,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:42" (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 06:00:42,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:00:42,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:00:42,455 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:00:42,456 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:00:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:00:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:00:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:00:42,458 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:00:42,458 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:00:42,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:00:42,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:00:43,763 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:00:43,764 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:00:43,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:00:43 BoogieIcfgContainer [2020-10-13 06:00:43,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:00:43,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:00:43,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:00:43,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:00:43,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:00:41" (1/3) ... [2020-10-13 06:00:43,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79892c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:00:43, skipping insertion in model container [2020-10-13 06:00:43,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:42" (2/3) ... [2020-10-13 06:00:43,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79892c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:00:43, skipping insertion in model container [2020-10-13 06:00:43,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:00:43" (3/3) ... [2020-10-13 06:00:43,780 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label17.c [2020-10-13 06:00:43,791 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:00:43,799 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:00:43,815 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:00:43,842 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:00:43,843 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:00:43,843 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:00:43,843 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:00:43,843 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:00:43,844 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:00:43,844 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:00:43,844 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:00:43,868 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-13 06:00:43,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-13 06:00:43,887 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:43,888 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:00:43,889 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:43,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:43,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1778503114, now seen corresponding path program 1 times [2020-10-13 06:00:43,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:43,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2066983404] [2020-10-13 06:00:43,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:44,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:44,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:46,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:46,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 06:00:46,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:00:46,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2062 [2020-10-13 06:00:46,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:46,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 06:00:46,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:00:46,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:00:46,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:00:46,876 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 37 [2020-10-13 06:00:47,145 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 38 [2020-10-13 06:00:47,353 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 38 [2020-10-13 06:00:47,517 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 37 [2020-10-13 06:00:47,707 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 35 [2020-10-13 06:00:47,899 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 32 [2020-10-13 06:00:47,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:47,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:47,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:47,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:47,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:47,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:47,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:00:47,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:47,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:47,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:47,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:00:47,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:48,149 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 06:00:48,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2066983404] [2020-10-13 06:00:48,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:00:48,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 06:00:48,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262970537] [2020-10-13 06:00:48,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:00:48,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:48,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:00:48,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:00:48,179 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 12 states. [2020-10-13 06:00:48,444 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-13 06:00:48,656 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2020-10-13 06:00:48,898 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2020-10-13 06:00:49,163 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2020-10-13 06:00:49,465 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2020-10-13 06:00:50,034 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 88 [2020-10-13 06:00:50,659 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 87 [2020-10-13 06:00:51,029 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2020-10-13 06:00:52,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:52,170 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-13 06:00:52,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:00:52,172 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 122 [2020-10-13 06:00:52,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:52,188 INFO L225 Difference]: With dead ends: 474 [2020-10-13 06:00:52,188 INFO L226 Difference]: Without dead ends: 205 [2020-10-13 06:00:52,195 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:00:52,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-13 06:00:52,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-13 06:00:52,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 06:00:52,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-13 06:00:52,259 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 122 [2020-10-13 06:00:52,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:52,260 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-13 06:00:52,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:00:52,260 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-13 06:00:52,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-13 06:00:52,265 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:52,265 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:00:52,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:00:52,265 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:52,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:52,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1289919151, now seen corresponding path program 1 times [2020-10-13 06:00:52,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:52,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1428423033] [2020-10-13 06:00:52,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:52,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:52,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:52,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:52,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:53,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:53,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-13 06:00:53,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:00:53,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1483 [2020-10-13 06:00:53,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:53,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:53,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 06:00:53,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:00:53,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:54,422 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 41 [2020-10-13 06:00:54,566 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 39 [2020-10-13 06:00:54,714 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 37 [2020-10-13 06:00:54,872 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 35 [2020-10-13 06:00:55,038 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 32 [2020-10-13 06:00:55,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:55,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:55,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:55,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:55,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:55,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:55,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:00:55,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:55,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:55,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:55,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:55,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:55,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:55,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:55,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:55,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:00:55,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:55,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:00:55,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:55,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:55,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:55,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:00:55,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:55,305 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 06:00:55,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1428423033] [2020-10-13 06:00:55,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:55,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:00:55,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203730674] [2020-10-13 06:00:55,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:00:55,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:55,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:00:55,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:00:55,309 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-13 06:00:56,138 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-13 06:00:56,911 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2020-10-13 06:00:57,237 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2020-10-13 06:00:57,627 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2020-10-13 06:00:57,840 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2020-10-13 06:00:58,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:58,501 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-13 06:00:58,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:00:58,502 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 130 [2020-10-13 06:00:58,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:58,506 INFO L225 Difference]: With dead ends: 433 [2020-10-13 06:00:58,506 INFO L226 Difference]: Without dead ends: 294 [2020-10-13 06:00:58,509 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-13 06:00:58,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-13 06:00:58,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-13 06:00:58,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 06:00:58,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-13 06:00:58,533 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 130 [2020-10-13 06:00:58,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:58,534 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-13 06:00:58,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:00:58,534 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-13 06:00:58,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-13 06:00:58,537 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:58,537 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:00:58,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:00:58,538 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:58,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:58,539 INFO L82 PathProgramCache]: Analyzing trace with hash 2082377679, now seen corresponding path program 1 times [2020-10-13 06:00:58,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:58,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [51712537] [2020-10-13 06:00:58,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:58,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:58,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:58,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:58,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:59,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:59,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 06:00:59,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:00:59,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 579 [2020-10-13 06:00:59,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:59,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:00:59,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:00:59,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-13 06:00:59,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:00:59,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:59,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:59,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:59,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:59,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:59,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:00:59,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:59,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:59,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:59,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:59,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:00:59,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:59,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:59,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:59,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:00:59,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:59,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:00:59,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:59,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:59,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:59,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:00:59,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:59,665 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 06:00:59,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [51712537] [2020-10-13 06:00:59,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:59,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:00:59,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125173955] [2020-10-13 06:00:59,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:00:59,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:59,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:00:59,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:00:59,668 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 5 states. [2020-10-13 06:01:00,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:00,795 INFO L93 Difference]: Finished difference Result 587 states and 809 transitions. [2020-10-13 06:01:00,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:00,799 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2020-10-13 06:01:00,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:00,802 INFO L225 Difference]: With dead ends: 587 [2020-10-13 06:01:00,802 INFO L226 Difference]: Without dead ends: 278 [2020-10-13 06:01:00,804 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 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 06:01:00,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-13 06:01:00,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 276. [2020-10-13 06:01:00,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 06:01:00,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 330 transitions. [2020-10-13 06:01:00,837 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 330 transitions. Word has length 133 [2020-10-13 06:01:00,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:00,838 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 330 transitions. [2020-10-13 06:01:00,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:01:00,838 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 330 transitions. [2020-10-13 06:01:00,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-13 06:01:00,842 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:00,842 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:00,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:01:00,842 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:00,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:00,843 INFO L82 PathProgramCache]: Analyzing trace with hash -854568749, now seen corresponding path program 1 times [2020-10-13 06:01:00,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:00,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [52670756] [2020-10-13 06:01:00,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:00,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:00,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:01,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:02,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:02,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-13 06:01:02,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:01:02,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1751 [2020-10-13 06:01:02,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:02,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:02,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 06:01:02,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:01:02,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:03,133 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-13 06:01:03,258 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:01:03,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:03,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:03,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:03,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:03,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:03,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:03,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:03,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:03,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:03,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:03,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:03,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:03,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:03,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:03,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:03,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:01:03,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:03,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 06:01:03,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:03,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:03,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:03,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 06:01:03,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:03,974 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 06:01:03,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [52670756] [2020-10-13 06:01:03,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:03,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:01:03,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789292147] [2020-10-13 06:01:03,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:01:03,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:03,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:01:03,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:01:03,976 INFO L87 Difference]: Start difference. First operand 276 states and 330 transitions. Second operand 14 states. [2020-10-13 06:01:04,618 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-10-13 06:01:04,936 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 115 [2020-10-13 06:01:05,251 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2020-10-13 06:01:05,519 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 112 [2020-10-13 06:01:05,976 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 109 [2020-10-13 06:01:06,373 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2020-10-13 06:01:06,651 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2020-10-13 06:01:07,035 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 06:01:07,299 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2020-10-13 06:01:07,503 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 06:01:07,741 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 06:01:07,897 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-13 06:01:08,057 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 06:01:08,336 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-13 06:01:08,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:08,613 INFO L93 Difference]: Finished difference Result 608 states and 790 transitions. [2020-10-13 06:01:08,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-13 06:01:08,614 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 163 [2020-10-13 06:01:08,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:08,624 INFO L225 Difference]: With dead ends: 608 [2020-10-13 06:01:08,624 INFO L226 Difference]: Without dead ends: 364 [2020-10-13 06:01:08,626 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=294, Invalid=698, Unknown=0, NotChecked=0, Total=992 [2020-10-13 06:01:08,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2020-10-13 06:01:08,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 319. [2020-10-13 06:01:08,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-10-13 06:01:08,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 378 transitions. [2020-10-13 06:01:08,662 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 378 transitions. Word has length 163 [2020-10-13 06:01:08,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:08,663 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 378 transitions. [2020-10-13 06:01:08,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:01:08,663 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 378 transitions. [2020-10-13 06:01:08,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-10-13 06:01:08,670 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:08,670 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:08,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:01:08,671 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:08,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:08,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1769531928, now seen corresponding path program 1 times [2020-10-13 06:01:08,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:08,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1440317591] [2020-10-13 06:01:08,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:08,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:08,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:08,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:08,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:09,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:10,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:13,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:13,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-13 06:01:13,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:01:13,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4428 [2020-10-13 06:01:13,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:13,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:13,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 06:01:13,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 06:01:13,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:13,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:13,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:13,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:13,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:13,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:13,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:01:13,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:13,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:13,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:13,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:13,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:13,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:13,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:13,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:13,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:01:13,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:13,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:13,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:13,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:13,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:13,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:13,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:13,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:01:13,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:13,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:13,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:13,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:01:13,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:13,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 06:01:13,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:13,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:13,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:13,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 06:01:13,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:01:14,017 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 06:01:14,018 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1440317591] [2020-10-13 06:01:14,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:14,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:14,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357855684] [2020-10-13 06:01:14,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:14,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:14,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:14,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:14,022 INFO L87 Difference]: Start difference. First operand 319 states and 378 transitions. Second operand 13 states. [2020-10-13 06:01:14,635 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-13 06:01:15,011 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 06:01:15,395 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 06:01:15,682 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-13 06:01:15,894 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-13 06:01:16,215 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-10-13 06:01:16,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:16,639 INFO L93 Difference]: Finished difference Result 648 states and 810 transitions. [2020-10-13 06:01:16,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:01:16,641 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 180 [2020-10-13 06:01:16,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:16,646 INFO L225 Difference]: With dead ends: 648 [2020-10-13 06:01:16,646 INFO L226 Difference]: Without dead ends: 395 [2020-10-13 06:01:16,648 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:01:16,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-10-13 06:01:16,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 391. [2020-10-13 06:01:16,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2020-10-13 06:01:16,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 456 transitions. [2020-10-13 06:01:16,675 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 456 transitions. Word has length 180 [2020-10-13 06:01:16,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:16,677 INFO L479 AbstractCegarLoop]: Abstraction has 391 states and 456 transitions. [2020-10-13 06:01:16,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:16,677 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 456 transitions. [2020-10-13 06:01:16,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-13 06:01:16,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:16,680 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:16,680 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:01:16,680 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:16,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:16,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1654474471, now seen corresponding path program 1 times [2020-10-13 06:01:16,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:16,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1007811617] [2020-10-13 06:01:16,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:16,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:16,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:17,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:18,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:18,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-13 06:01:18,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:01:18,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1893 [2020-10-13 06:01:18,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:18,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:18,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 06:01:18,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 06:01:18,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:18,999 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:01:19,111 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 43 [2020-10-13 06:01:19,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:19,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:19,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:19,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:19,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:19,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:19,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:19,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:19,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:19,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:19,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:19,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:19,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:19,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:19,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:19,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:19,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:19,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:19,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 06:01:19,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:19,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:19,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:19,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 06:01:19,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:19,806 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 06:01:19,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1007811617] [2020-10-13 06:01:19,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:19,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:19,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668738321] [2020-10-13 06:01:19,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:19,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:19,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:19,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:19,808 INFO L87 Difference]: Start difference. First operand 391 states and 456 transitions. Second operand 13 states. [2020-10-13 06:01:20,371 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-13 06:01:20,515 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:01:20,959 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:01:21,438 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:01:21,739 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:01:22,018 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:01:22,334 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:01:22,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:22,672 INFO L93 Difference]: Finished difference Result 787 states and 964 transitions. [2020-10-13 06:01:22,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:01:22,673 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 185 [2020-10-13 06:01:22,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:22,676 INFO L225 Difference]: With dead ends: 787 [2020-10-13 06:01:22,676 INFO L226 Difference]: Without dead ends: 442 [2020-10-13 06:01:22,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:01:22,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-10-13 06:01:22,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2020-10-13 06:01:22,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-13 06:01:22,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 508 transitions. [2020-10-13 06:01:22,693 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 508 transitions. Word has length 185 [2020-10-13 06:01:22,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:22,693 INFO L479 AbstractCegarLoop]: Abstraction has 442 states and 508 transitions. [2020-10-13 06:01:22,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:22,693 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 508 transitions. [2020-10-13 06:01:22,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-13 06:01:22,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:22,697 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:22,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:01:22,697 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:22,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:22,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1511207194, now seen corresponding path program 1 times [2020-10-13 06:01:22,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:22,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1522437914] [2020-10-13 06:01:22,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:22,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:22,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:23,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:23,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:25,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:25,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-10-13 06:01:25,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:01:25,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2791 [2020-10-13 06:01:25,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:25,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:25,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 06:01:25,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:01:25,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:01:26,059 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:01:26,246 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2020-10-13 06:01:26,403 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2020-10-13 06:01:26,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:26,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:26,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:26,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:26,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:26,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:26,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:26,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:26,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:26,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:26,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:26,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:26,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:26,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:26,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:26,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:01:26,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:26,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:01:26,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:26,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:26,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:26,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:26,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:26,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:01:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:26,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:26,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:26,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:01:26,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:26,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 06:01:26,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:26,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:26,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:26,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 06:01:26,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:27,013 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 06:01:27,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1522437914] [2020-10-13 06:01:27,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:27,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:27,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607166282] [2020-10-13 06:01:27,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:27,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:27,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:27,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:27,015 INFO L87 Difference]: Start difference. First operand 442 states and 508 transitions. Second operand 13 states. [2020-10-13 06:01:27,586 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-13 06:01:27,783 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:01:28,173 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-10-13 06:01:28,582 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2020-10-13 06:01:28,857 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 106 [2020-10-13 06:01:29,233 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 103 [2020-10-13 06:01:29,611 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 98 [2020-10-13 06:01:30,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:30,019 INFO L93 Difference]: Finished difference Result 880 states and 1055 transitions. [2020-10-13 06:01:30,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:01:30,022 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 196 [2020-10-13 06:01:30,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:30,025 INFO L225 Difference]: With dead ends: 880 [2020-10-13 06:01:30,025 INFO L226 Difference]: Without dead ends: 504 [2020-10-13 06:01:30,027 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:01:30,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-10-13 06:01:30,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2020-10-13 06:01:30,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2020-10-13 06:01:30,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 576 transitions. [2020-10-13 06:01:30,045 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 576 transitions. Word has length 196 [2020-10-13 06:01:30,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:30,046 INFO L479 AbstractCegarLoop]: Abstraction has 504 states and 576 transitions. [2020-10-13 06:01:30,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:30,046 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 576 transitions. [2020-10-13 06:01:30,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-13 06:01:30,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:30,050 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:30,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:01:30,050 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:30,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:30,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1435742794, now seen corresponding path program 1 times [2020-10-13 06:01:30,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:30,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2028603723] [2020-10-13 06:01:30,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:30,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:30,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:30,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:30,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:32,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:32,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-13 06:01:32,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:01:32,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2571 [2020-10-13 06:01:32,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:32,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:32,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 06:01:32,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:01:32,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:33,110 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-13 06:01:33,231 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:01:33,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:33,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:33,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:33,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:33,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:33,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:33,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:01:33,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:33,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:33,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:33,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:33,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:33,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:33,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:33,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:33,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:01:33,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:33,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:01:33,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:33,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:33,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:33,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:33,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:33,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:01:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:33,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:33,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:33,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:01:33,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:33,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 06:01:33,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:33,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:33,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:33,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:01:33,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:34,132 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 06:01:34,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2028603723] [2020-10-13 06:01:34,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:34,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:01:34,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125284851] [2020-10-13 06:01:34,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:01:34,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:34,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:01:34,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:01:34,135 INFO L87 Difference]: Start difference. First operand 504 states and 576 transitions. Second operand 14 states. [2020-10-13 06:01:34,803 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2020-10-13 06:01:35,057 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2020-10-13 06:01:35,420 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2020-10-13 06:01:35,790 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2020-10-13 06:01:35,942 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-10-13 06:01:36,163 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2020-10-13 06:01:36,415 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 06:01:36,710 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2020-10-13 06:01:36,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:36,987 INFO L93 Difference]: Finished difference Result 1002 states and 1187 transitions. [2020-10-13 06:01:36,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:01:36,989 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 199 [2020-10-13 06:01:36,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:36,992 INFO L225 Difference]: With dead ends: 1002 [2020-10-13 06:01:36,993 INFO L226 Difference]: Without dead ends: 547 [2020-10-13 06:01:36,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=170, Invalid=382, Unknown=0, NotChecked=0, Total=552 [2020-10-13 06:01:36,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2020-10-13 06:01:37,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 542. [2020-10-13 06:01:37,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-10-13 06:01:37,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 621 transitions. [2020-10-13 06:01:37,014 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 621 transitions. Word has length 199 [2020-10-13 06:01:37,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:37,015 INFO L479 AbstractCegarLoop]: Abstraction has 542 states and 621 transitions. [2020-10-13 06:01:37,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:01:37,015 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 621 transitions. [2020-10-13 06:01:37,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-13 06:01:37,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:37,018 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:37,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:01:37,018 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:37,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:37,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1706189018, now seen corresponding path program 1 times [2020-10-13 06:01:37,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:37,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [144858394] [2020-10-13 06:01:37,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:37,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:37,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:37,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:37,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:38,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:40,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:40,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-10-13 06:01:40,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:01:40,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3826 [2020-10-13 06:01:40,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:40,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:40,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 06:01:40,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:01:40,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:41,347 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 33 [2020-10-13 06:01:41,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:41,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:41,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:41,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:41,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:41,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:41,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:41,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:41,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:41,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:41,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:41,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:41,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:41,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:41,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:41,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:01:41,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:41,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:01:41,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:41,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:41,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:41,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:41,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:41,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:01:41,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:41,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:41,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:41,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 06:01:41,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:41,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 06:01:41,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:41,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:41,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:41,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 06:01:41,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:41,947 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 06:01:41,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [144858394] [2020-10-13 06:01:41,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:41,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:41,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949568363] [2020-10-13 06:01:41,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:41,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:41,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:41,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:41,950 INFO L87 Difference]: Start difference. First operand 542 states and 621 transitions. Second operand 13 states. [2020-10-13 06:01:42,945 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-10-13 06:01:43,290 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2020-10-13 06:01:43,539 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-10-13 06:01:43,785 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2020-10-13 06:01:44,086 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2020-10-13 06:01:44,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:44,427 INFO L93 Difference]: Finished difference Result 1080 states and 1279 transitions. [2020-10-13 06:01:44,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:01:44,428 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 202 [2020-10-13 06:01:44,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:44,431 INFO L225 Difference]: With dead ends: 1080 [2020-10-13 06:01:44,431 INFO L226 Difference]: Without dead ends: 587 [2020-10-13 06:01:44,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:01:44,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2020-10-13 06:01:44,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 585. [2020-10-13 06:01:44,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-10-13 06:01:44,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 671 transitions. [2020-10-13 06:01:44,452 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 671 transitions. Word has length 202 [2020-10-13 06:01:44,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:44,453 INFO L479 AbstractCegarLoop]: Abstraction has 585 states and 671 transitions. [2020-10-13 06:01:44,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:44,453 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 671 transitions. [2020-10-13 06:01:44,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-13 06:01:44,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:44,456 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:44,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:01:44,456 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:44,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:44,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1598302287, now seen corresponding path program 1 times [2020-10-13 06:01:44,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:44,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2118236158] [2020-10-13 06:01:44,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:44,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:44,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:44,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:44,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:44,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:45,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:47,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:47,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-13 06:01:47,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:01:47,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3206 [2020-10-13 06:01:47,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:47,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:47,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-13 06:01:47,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:01:47,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:48,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:48,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:48,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:48,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:48,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:48,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:48,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:48,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:48,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:48,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:48,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:48,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:48,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:48,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:48,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:48,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:01:48,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:48,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:01:48,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:48,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:48,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:48,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:48,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:48,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:01:48,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:48,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:48,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:48,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:01:48,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:48,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:01:48,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:48,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:48,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:48,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:48,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:48,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:01:48,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:48,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:48,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:48,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 06:01:48,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:48,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:01:48,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:48,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:48,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:48,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 06:01:48,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:48,289 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 06:01:48,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2118236158] [2020-10-13 06:01:48,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:48,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:48,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030098854] [2020-10-13 06:01:48,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:48,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:48,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:48,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:48,292 INFO L87 Difference]: Start difference. First operand 585 states and 671 transitions. Second operand 13 states. [2020-10-13 06:01:50,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:50,114 INFO L93 Difference]: Finished difference Result 1162 states and 1375 transitions. [2020-10-13 06:01:50,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:01:50,118 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 206 [2020-10-13 06:01:50,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:50,121 INFO L225 Difference]: With dead ends: 1162 [2020-10-13 06:01:50,121 INFO L226 Difference]: Without dead ends: 626 [2020-10-13 06:01:50,123 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:01:50,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2020-10-13 06:01:50,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 585. [2020-10-13 06:01:50,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-10-13 06:01:50,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 671 transitions. [2020-10-13 06:01:50,143 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 671 transitions. Word has length 206 [2020-10-13 06:01:50,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:50,144 INFO L479 AbstractCegarLoop]: Abstraction has 585 states and 671 transitions. [2020-10-13 06:01:50,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:50,144 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 671 transitions. [2020-10-13 06:01:50,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-10-13 06:01:50,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:50,147 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:50,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:01:50,147 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:50,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:50,148 INFO L82 PathProgramCache]: Analyzing trace with hash 356479217, now seen corresponding path program 1 times [2020-10-13 06:01:50,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:50,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [142177007] [2020-10-13 06:01:50,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:50,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:50,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:50,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:51,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:51,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:53,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:53,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-13 06:01:53,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:01:53,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3534 [2020-10-13 06:01:53,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:53,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:53,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-13 06:01:53,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:01:53,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:01:54,221 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2020-10-13 06:01:54,425 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 52 [2020-10-13 06:01:54,669 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 52 [2020-10-13 06:01:54,902 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 49 [2020-10-13 06:01:55,131 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 45 [2020-10-13 06:01:55,333 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 41 [2020-10-13 06:01:55,542 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 35 [2020-10-13 06:01:55,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:55,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:55,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:55,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:55,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:55,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:55,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:55,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:55,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:55,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:55,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:55,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:55,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:55,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:55,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:01:55,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:55,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:01:55,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:55,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:55,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:55,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:55,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:55,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:01:55,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:55,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:55,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:55,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:01:55,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:55,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:01:55,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:55,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:55,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:55,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:55,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:55,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:01:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:55,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:55,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:55,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 06:01:55,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:55,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:01:55,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:55,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:55,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:55,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 06:01:55,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:55,907 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 06:01:55,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [142177007] [2020-10-13 06:01:55,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:55,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:55,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003800220] [2020-10-13 06:01:55,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:55,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:55,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:55,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:55,911 INFO L87 Difference]: Start difference. First operand 585 states and 671 transitions. Second operand 13 states. [2020-10-13 06:01:56,115 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 06:01:56,299 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 06:01:56,728 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 115 [2020-10-13 06:01:57,274 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 112 [2020-10-13 06:01:57,640 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 109 [2020-10-13 06:01:57,991 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 106 [2020-10-13 06:01:58,258 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 101 [2020-10-13 06:01:59,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:59,212 INFO L93 Difference]: Finished difference Result 1195 states and 1419 transitions. [2020-10-13 06:01:59,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:01:59,214 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 212 [2020-10-13 06:01:59,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:59,217 INFO L225 Difference]: With dead ends: 1195 [2020-10-13 06:01:59,218 INFO L226 Difference]: Without dead ends: 676 [2020-10-13 06:01:59,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:01:59,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2020-10-13 06:01:59,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 591. [2020-10-13 06:01:59,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-10-13 06:01:59,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 679 transitions. [2020-10-13 06:01:59,243 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 679 transitions. Word has length 212 [2020-10-13 06:01:59,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:59,244 INFO L479 AbstractCegarLoop]: Abstraction has 591 states and 679 transitions. [2020-10-13 06:01:59,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:59,244 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 679 transitions. [2020-10-13 06:01:59,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-13 06:01:59,246 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:59,247 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:59,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:01:59,247 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:59,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:59,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1974448594, now seen corresponding path program 1 times [2020-10-13 06:01:59,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:59,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358563262] [2020-10-13 06:01:59,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:59,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:59,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:59,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:59,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:01,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:01,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-13 06:02:01,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:02:01,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1922 [2020-10-13 06:02:01,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:01,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:01,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-13 06:02:01,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:02:01,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:01,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:01,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:01,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:01,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:01,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:01,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:01,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:01,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:01,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:01,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:01,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:01,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:01,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:01,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:01,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:01,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:01,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:01,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:01,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:02:01,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:01,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:01,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:01,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:01,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:01,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:01,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:01,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:01,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:01,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:01,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:01,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 06:02:01,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:01,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:01,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:01,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:02:01,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:01,923 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 06:02:01,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358563262] [2020-10-13 06:02:01,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:01,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:02:01,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281821630] [2020-10-13 06:02:01,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:02:01,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:01,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:02:01,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:02:01,925 INFO L87 Difference]: Start difference. First operand 591 states and 679 transitions. Second operand 14 states. [2020-10-13 06:02:02,828 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-13 06:02:03,035 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-13 06:02:03,253 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-13 06:02:03,489 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-13 06:02:04,020 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-13 06:02:04,289 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-10-13 06:02:04,555 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-10-13 06:02:05,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:05,132 INFO L93 Difference]: Finished difference Result 1180 states and 1403 transitions. [2020-10-13 06:02:05,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:02:05,132 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 236 [2020-10-13 06:02:05,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:05,135 INFO L225 Difference]: With dead ends: 1180 [2020-10-13 06:02:05,136 INFO L226 Difference]: Without dead ends: 608 [2020-10-13 06:02:05,137 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=182, Invalid=418, Unknown=0, NotChecked=0, Total=600 [2020-10-13 06:02:05,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-10-13 06:02:05,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 606. [2020-10-13 06:02:05,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 606 states. [2020-10-13 06:02:05,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 695 transitions. [2020-10-13 06:02:05,157 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 695 transitions. Word has length 236 [2020-10-13 06:02:05,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:05,158 INFO L479 AbstractCegarLoop]: Abstraction has 606 states and 695 transitions. [2020-10-13 06:02:05,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:02:05,158 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 695 transitions. [2020-10-13 06:02:05,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-10-13 06:02:05,161 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:05,161 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:05,161 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:02:05,161 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:05,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:05,162 INFO L82 PathProgramCache]: Analyzing trace with hash -743220209, now seen corresponding path program 1 times [2020-10-13 06:02:05,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:05,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1112627003] [2020-10-13 06:02:05,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:05,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:05,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:05,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:05,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:05,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:07,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:07,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-13 06:02:07,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:02:07,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2710 [2020-10-13 06:02:07,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:07,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:07,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-13 06:02:07,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:02:07,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:08,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:08,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:08,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:08,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:08,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:08,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:08,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:08,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:08,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:08,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:08,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:08,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:08,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:08,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:08,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:02:08,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:08,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:08,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:08,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:08,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:08,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:08,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:08,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:02:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:08,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:08,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:08,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:02:08,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:08,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:02:08,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:08,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:08,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:08,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:08,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:08,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:02:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:08,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:08,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:08,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 06:02:08,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:08,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 06:02:08,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:08,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:08,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:08,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 06:02:08,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:08,303 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-13 06:02:08,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1112627003] [2020-10-13 06:02:08,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:08,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:02:08,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532327710] [2020-10-13 06:02:08,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:02:08,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:08,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:02:08,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:02:08,305 INFO L87 Difference]: Start difference. First operand 606 states and 695 transitions. Second operand 5 states. [2020-10-13 06:02:09,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:09,315 INFO L93 Difference]: Finished difference Result 1232 states and 1468 transitions. [2020-10-13 06:02:09,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:09,315 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 238 [2020-10-13 06:02:09,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:09,318 INFO L225 Difference]: With dead ends: 1232 [2020-10-13 06:02:09,318 INFO L226 Difference]: Without dead ends: 271 [2020-10-13 06:02:09,320 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:02:09,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-13 06:02:09,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2020-10-13 06:02:09,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-10-13 06:02:09,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 302 transitions. [2020-10-13 06:02:09,329 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 302 transitions. Word has length 238 [2020-10-13 06:02:09,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:09,329 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 302 transitions. [2020-10-13 06:02:09,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:09,329 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 302 transitions. [2020-10-13 06:02:09,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-13 06:02:09,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:09,331 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:09,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:02:09,332 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:09,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:09,332 INFO L82 PathProgramCache]: Analyzing trace with hash -105205357, now seen corresponding path program 1 times [2020-10-13 06:02:09,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:09,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1391924377] [2020-10-13 06:02:09,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:09,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:09,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:09,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:09,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:09,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:10,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:10,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:13,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:13,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-13 06:02:13,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:02:13,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3653 [2020-10-13 06:02:13,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:13,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:13,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-10-13 06:02:13,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:02:13,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:13,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:13,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:13,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:13,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:13,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:13,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:13,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:13,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:13,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:13,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:13,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:13,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:13,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:13,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:13,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:13,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:13,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:02:13,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:13,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:13,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:13,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:13,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:13,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:13,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:13,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:13,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:13,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:13,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:13,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:02:13,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:13,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:13,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:13,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:13,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:13,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:13,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:13,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:13,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:13,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:13,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:13,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:02:13,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:13,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:13,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:13,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:02:13,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:13,814 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 06:02:13,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1391924377] [2020-10-13 06:02:13,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:13,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:02:13,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377051440] [2020-10-13 06:02:13,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:13,816 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:13,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:13,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:13,816 INFO L87 Difference]: Start difference. First operand 271 states and 302 transitions. Second operand 13 states. [2020-10-13 06:02:14,628 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 06:02:14,865 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 06:02:15,090 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-13 06:02:15,467 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-13 06:02:15,802 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-10-13 06:02:16,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:16,248 INFO L93 Difference]: Finished difference Result 551 states and 646 transitions. [2020-10-13 06:02:16,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:02:16,249 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 249 [2020-10-13 06:02:16,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:16,252 INFO L225 Difference]: With dead ends: 551 [2020-10-13 06:02:16,252 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:02:16,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:02:16,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:02:16,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:02:16,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:02:16,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 383 transitions. [2020-10-13 06:02:16,274 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 383 transitions. Word has length 249 [2020-10-13 06:02:16,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:16,275 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 383 transitions. [2020-10-13 06:02:16,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:16,275 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 383 transitions. [2020-10-13 06:02:16,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-10-13 06:02:16,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:16,277 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:16,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:02:16,278 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:16,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:16,278 INFO L82 PathProgramCache]: Analyzing trace with hash 822896806, now seen corresponding path program 1 times [2020-10-13 06:02:16,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:16,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [424132511] [2020-10-13 06:02:16,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:16,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:16,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:16,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:16,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:16,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-13 06:02:16,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:16,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-10-13 06:02:16,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:16,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:16,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-13 06:02:16,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:02:16,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:16,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:16,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:16,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:16,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:16,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:16,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:16,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:16,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:16,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:16,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:16,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:16,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:16,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:16,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:16,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:16,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:16,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:02:16,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:16,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:16,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:16,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:16,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:16,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:16,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:16,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:16,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:16,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:16,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:16,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:02:16,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:16,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:16,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:16,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:16,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:16,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:16,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:16,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:16,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:16,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:16,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:16,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:02:16,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:16,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:16,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:16,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:16,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:16,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:16,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:16,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:16,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 06:02:16,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:16,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:02:16,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:16,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:16,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:16,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 06:02:16,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:16,953 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 132 proven. 4 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-10-13 06:02:16,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [424132511] [2020-10-13 06:02:16,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:16,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:02:16,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135446364] [2020-10-13 06:02:16,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:02:16,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:16,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:02:16,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:02:16,955 INFO L87 Difference]: Start difference. First operand 346 states and 383 transitions. Second operand 5 states. [2020-10-13 06:02:17,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:17,799 INFO L93 Difference]: Finished difference Result 708 states and 817 transitions. [2020-10-13 06:02:17,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:17,799 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 261 [2020-10-13 06:02:17,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:17,801 INFO L225 Difference]: With dead ends: 708 [2020-10-13 06:02:17,801 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:02:17,802 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 06:02:17,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:02:17,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:02:17,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:02:17,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 381 transitions. [2020-10-13 06:02:17,812 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 381 transitions. Word has length 261 [2020-10-13 06:02:17,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:17,813 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 381 transitions. [2020-10-13 06:02:17,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:17,813 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 381 transitions. [2020-10-13 06:02:17,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-10-13 06:02:17,815 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:17,815 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:17,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:02:17,816 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:17,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:17,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1823276982, now seen corresponding path program 1 times [2020-10-13 06:02:17,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:17,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [366920676] [2020-10-13 06:02:17,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:17,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:17,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:18,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:18,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-13 06:02:18,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:18,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 881 [2020-10-13 06:02:18,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:18,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:18,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-13 06:02:18,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 06:02:18,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:19,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:19,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:19,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:19,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:19,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:19,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:19,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:19,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:19,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:19,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:19,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:19,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:19,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:19,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:19,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:19,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:19,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:02:19,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:19,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:19,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:19,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:19,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:19,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:19,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:19,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:19,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:19,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:19,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:19,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:02:19,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:19,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:19,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:19,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:19,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:19,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:19,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:19,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:19,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:19,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:19,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:19,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:02:19,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:19,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:19,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:19,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:19,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:19,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:19,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:19,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:19,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:19,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:02:19,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:19,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:02:19,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:19,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:19,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:19,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:02:19,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:19,546 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 135 proven. 4 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-10-13 06:02:19,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [366920676] [2020-10-13 06:02:19,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:19,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:02:19,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275198158] [2020-10-13 06:02:19,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:19,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:19,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:19,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:19,548 INFO L87 Difference]: Start difference. First operand 346 states and 381 transitions. Second operand 13 states. [2020-10-13 06:02:20,114 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-13 06:02:20,400 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-13 06:02:20,659 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2020-10-13 06:02:20,966 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2020-10-13 06:02:21,214 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 86 [2020-10-13 06:02:21,579 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2020-10-13 06:02:21,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:21,864 INFO L93 Difference]: Finished difference Result 698 states and 802 transitions. [2020-10-13 06:02:21,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:02:21,865 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 264 [2020-10-13 06:02:21,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:21,868 INFO L225 Difference]: With dead ends: 698 [2020-10-13 06:02:21,868 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:02:21,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:02:21,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:02:21,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:02:21,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:02:21,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 460 transitions. [2020-10-13 06:02:21,880 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 460 transitions. Word has length 264 [2020-10-13 06:02:21,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:21,881 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 460 transitions. [2020-10-13 06:02:21,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:21,881 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 460 transitions. [2020-10-13 06:02:21,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2020-10-13 06:02:21,883 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:21,884 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:21,884 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:02:21,884 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:21,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:21,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1589799354, now seen corresponding path program 1 times [2020-10-13 06:02:21,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:21,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1459886163] [2020-10-13 06:02:21,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:21,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:22,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:22,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:22,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-10-13 06:02:22,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:22,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 475 [2020-10-13 06:02:22,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:22,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:22,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-10-13 06:02:22,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:02:22,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:22,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:22,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:22,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:22,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:22,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:22,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:22,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:22,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:22,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:22,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:22,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:22,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:22,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:22,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:22,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:22,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:22,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:02:22,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:22,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:22,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:22,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:22,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:22,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:22,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:22,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:22,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:22,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:22,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:22,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:02:22,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:22,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:22,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:22,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:22,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:22,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:22,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:22,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:22,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:22,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:22,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:22,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:22,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:22,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:22,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:22,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:22,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:22,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:22,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:22,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:22,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:02:22,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:22,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:02:22,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:22,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:22,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:22,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:02:22,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:22,740 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 06:02:22,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1459886163] [2020-10-13 06:02:22,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:22,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:02:22,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087565918] [2020-10-13 06:02:22,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:02:22,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:22,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:02:22,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:02:22,743 INFO L87 Difference]: Start difference. First operand 418 states and 460 transitions. Second operand 5 states. [2020-10-13 06:02:23,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:23,634 INFO L93 Difference]: Finished difference Result 851 states and 970 transitions. [2020-10-13 06:02:23,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:23,635 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 266 [2020-10-13 06:02:23,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:23,637 INFO L225 Difference]: With dead ends: 851 [2020-10-13 06:02:23,637 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:02:23,639 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 06:02:23,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:02:23,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:02:23,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:02:23,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 458 transitions. [2020-10-13 06:02:23,653 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 458 transitions. Word has length 266 [2020-10-13 06:02:23,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:23,653 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 458 transitions. [2020-10-13 06:02:23,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:23,654 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 458 transitions. [2020-10-13 06:02:23,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-10-13 06:02:23,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:23,658 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:23,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:02:23,658 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:23,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:23,659 INFO L82 PathProgramCache]: Analyzing trace with hash -914630707, now seen corresponding path program 1 times [2020-10-13 06:02:23,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:23,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1927431473] [2020-10-13 06:02:23,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:23,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:23,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:23,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:24,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:25,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:25,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-13 06:02:25,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:02:25,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1293 [2020-10-13 06:02:25,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:25,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:25,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 06:02:25,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:02:25,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:25,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:25,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:25,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:25,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:25,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:25,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:02:25,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:25,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:25,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:25,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:25,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:25,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:25,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:25,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:25,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:25,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:25,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:02:25,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:25,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:25,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:25,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:25,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:25,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:25,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:25,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:25,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:25,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:25,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:25,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:02:25,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:25,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:25,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:25,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:25,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:25,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:25,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:25,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:25,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:25,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:25,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:25,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:25,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:25,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:25,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:25,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:25,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:25,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:25,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:25,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:02:25,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:25,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:25,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:25,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:25,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:25,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:25,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:25,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:02:25,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:25,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:25,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:25,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:02:25,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:25,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:02:25,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:25,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:25,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:25,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:02:25,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:25,372 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 06:02:25,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1927431473] [2020-10-13 06:02:25,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:25,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:02:25,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560740529] [2020-10-13 06:02:25,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:02:25,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:25,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:02:25,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:02:25,374 INFO L87 Difference]: Start difference. First operand 418 states and 458 transitions. Second operand 5 states. [2020-10-13 06:02:26,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:26,208 INFO L93 Difference]: Finished difference Result 849 states and 963 transitions. [2020-10-13 06:02:26,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:26,209 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 284 [2020-10-13 06:02:26,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:26,211 INFO L225 Difference]: With dead ends: 849 [2020-10-13 06:02:26,211 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:02:26,213 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 06:02:26,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:02:26,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:02:26,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:02:26,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 456 transitions. [2020-10-13 06:02:26,223 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 456 transitions. Word has length 284 [2020-10-13 06:02:26,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:26,224 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 456 transitions. [2020-10-13 06:02:26,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:26,224 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 456 transitions. [2020-10-13 06:02:26,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-10-13 06:02:26,226 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:26,226 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:26,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:02:26,227 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:26,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:26,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1400103430, now seen corresponding path program 1 times [2020-10-13 06:02:26,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:26,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1385243556] [2020-10-13 06:02:26,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:26,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:26,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:26,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:26,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 299 [2020-10-13 06:02:26,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:26,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 691 [2020-10-13 06:02:26,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:26,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:26,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 06:02:26,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:02:26,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:27,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:27,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:27,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:27,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:27,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:27,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:27,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:27,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:27,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:27,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:27,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:27,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:27,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:27,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:27,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:27,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:27,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:27,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:27,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:02:27,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:27,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:27,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:27,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:27,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:02:27,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:27,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:27,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:27,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:27,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:27,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:27,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:02:27,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:27,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:27,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:27,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:27,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:02:27,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:27,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:27,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:27,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:27,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:27,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:27,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:02:27,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:27,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:27,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:27,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:27,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:27,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:27,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:27,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:27,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:27,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:02:27,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:27,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 06:02:27,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:27,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:27,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:27,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:02:27,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:27,679 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 06:02:27,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1385243556] [2020-10-13 06:02:27,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:27,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:02:27,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817538415] [2020-10-13 06:02:27,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:02:27,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:27,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:02:27,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:02:27,683 INFO L87 Difference]: Start difference. First operand 418 states and 456 transitions. Second operand 6 states. [2020-10-13 06:02:28,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:28,898 INFO L93 Difference]: Finished difference Result 853 states and 962 transitions. [2020-10-13 06:02:28,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:28,899 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 283 [2020-10-13 06:02:28,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:28,903 INFO L225 Difference]: With dead ends: 853 [2020-10-13 06:02:28,903 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:02:28,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:02:28,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:02:28,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:02:28,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:02:28,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 454 transitions. [2020-10-13 06:02:28,915 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 454 transitions. Word has length 283 [2020-10-13 06:02:28,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:28,916 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 454 transitions. [2020-10-13 06:02:28,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:02:28,916 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 454 transitions. [2020-10-13 06:02:28,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2020-10-13 06:02:28,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:28,919 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:28,919 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 06:02:28,919 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:28,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:28,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1119472343, now seen corresponding path program 1 times [2020-10-13 06:02:28,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:28,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [241073790] [2020-10-13 06:02:28,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:29,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:29,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:29,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:30,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:30,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-10-13 06:02:30,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:02:30,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1677 [2020-10-13 06:02:30,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:30,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:30,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-13 06:02:30,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:02:30,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:31,102 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-10-13 06:02:31,326 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 45 [2020-10-13 06:02:31,569 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 44 [2020-10-13 06:02:31,795 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 40 [2020-10-13 06:02:31,953 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 36 [2020-10-13 06:02:32,084 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 32 [2020-10-13 06:02:32,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:32,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:32,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:32,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:32,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:32,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:32,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:32,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:32,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:32,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:32,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:32,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:32,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:32,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:32,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:32,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:32,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:02:32,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:32,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:32,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:32,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:32,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:32,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:32,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:32,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:32,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:32,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:32,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:32,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:02:32,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:32,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:32,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:32,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:32,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:32,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:32,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:32,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:32,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:32,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:32,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:32,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:32,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:32,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:32,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:32,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:32,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:32,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:32,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:32,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:32,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:32,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:02:32,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:32,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:02:32,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:32,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:32,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:32,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:32,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:32,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:02:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:32,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:32,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:32,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:02:32,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:32,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:02:32,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:32,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:32,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:32,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 06:02:32,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:32,618 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 163 proven. 5 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2020-10-13 06:02:32,619 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [241073790] [2020-10-13 06:02:32,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:32,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:02:32,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491645350] [2020-10-13 06:02:32,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:32,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:32,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:32,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:32,620 INFO L87 Difference]: Start difference. First operand 418 states and 454 transitions. Second operand 13 states. [2020-10-13 06:02:33,118 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-13 06:02:33,280 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:02:33,620 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:02:34,073 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:02:34,417 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:02:34,794 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:02:35,177 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:02:35,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:35,467 INFO L93 Difference]: Finished difference Result 835 states and 937 transitions. [2020-10-13 06:02:35,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:02:35,468 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 293 [2020-10-13 06:02:35,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:35,472 INFO L225 Difference]: With dead ends: 835 [2020-10-13 06:02:35,472 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:02:35,473 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:02:35,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:02:35,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:02:35,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:02:35,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 529 transitions. [2020-10-13 06:02:35,487 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 529 transitions. Word has length 293 [2020-10-13 06:02:35,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:35,488 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 529 transitions. [2020-10-13 06:02:35,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:35,488 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 529 transitions. [2020-10-13 06:02:35,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-10-13 06:02:35,490 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:35,491 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:35,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 06:02:35,491 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:35,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:35,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1184067074, now seen corresponding path program 1 times [2020-10-13 06:02:35,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:35,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1245000321] [2020-10-13 06:02:35,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:35,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:35,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:35,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:35,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-10-13 06:02:35,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:35,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 427 [2020-10-13 06:02:35,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:35,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:35,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-13 06:02:35,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 06:02:35,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:36,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:36,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:36,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:36,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:36,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:36,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:36,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:36,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:36,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:36,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:36,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:36,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:36,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:36,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:36,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:36,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:36,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:36,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:02:36,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:36,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:36,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:36,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:36,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:36,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:36,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:36,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:36,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:36,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:36,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:02:36,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:36,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:36,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:36,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:36,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:36,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:36,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:36,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:36,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:36,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:36,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:36,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:36,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:36,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:36,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:36,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:36,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:36,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:36,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:36,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:36,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:36,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 06:02:36,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:36,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 06:02:36,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:36,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:36,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:36,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 06:02:36,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:36,486 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 173 proven. 4 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2020-10-13 06:02:36,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1245000321] [2020-10-13 06:02:36,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:36,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:02:36,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093097514] [2020-10-13 06:02:36,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:02:36,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:36,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:02:36,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:02:36,488 INFO L87 Difference]: Start difference. First operand 483 states and 529 transitions. Second operand 6 states. [2020-10-13 06:02:37,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:37,333 INFO L93 Difference]: Finished difference Result 984 states and 1109 transitions. [2020-10-13 06:02:37,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:37,334 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 302 [2020-10-13 06:02:37,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:37,337 INFO L225 Difference]: With dead ends: 984 [2020-10-13 06:02:37,337 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:02:37,339 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 06:02:37,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:02:37,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:02:37,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:02:37,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 527 transitions. [2020-10-13 06:02:37,351 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 527 transitions. Word has length 302 [2020-10-13 06:02:37,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:37,352 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 527 transitions. [2020-10-13 06:02:37,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:02:37,352 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 527 transitions. [2020-10-13 06:02:37,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2020-10-13 06:02:37,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:37,355 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:37,355 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 06:02:37,355 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:37,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:37,356 INFO L82 PathProgramCache]: Analyzing trace with hash -59447045, now seen corresponding path program 1 times [2020-10-13 06:02:37,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:37,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [101976894] [2020-10-13 06:02:37,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:37,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:37,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:37,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:37,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 325 [2020-10-13 06:02:37,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:37,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 540 [2020-10-13 06:02:37,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:37,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:37,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-13 06:02:37,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 06:02:37,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:38,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:38,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:38,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:38,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:38,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:38,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:38,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:38,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:38,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:38,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:38,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:38,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:38,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:38,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:38,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:38,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:38,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:02:38,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:38,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:38,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:38,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:38,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:38,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:38,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:38,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:38,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:38,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:38,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:38,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:02:38,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:38,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:38,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:38,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:38,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:38,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:38,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:38,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:38,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:38,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:38,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:38,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:38,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:38,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:38,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:38,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:38,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:38,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:38,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:38,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:38,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:38,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:02:38,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:38,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:38,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:38,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:38,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:38,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:38,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:38,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:02:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:38,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:38,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:38,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 06:02:38,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:38,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:02:38,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:38,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:38,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:38,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 06:02:38,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:38,372 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 06:02:38,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [101976894] [2020-10-13 06:02:38,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:38,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:02:38,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697892667] [2020-10-13 06:02:38,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:02:38,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:38,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:02:38,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:02:38,374 INFO L87 Difference]: Start difference. First operand 483 states and 527 transitions. Second operand 5 states. [2020-10-13 06:02:39,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:39,189 INFO L93 Difference]: Finished difference Result 978 states and 1098 transitions. [2020-10-13 06:02:39,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:39,192 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 307 [2020-10-13 06:02:39,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:39,195 INFO L225 Difference]: With dead ends: 978 [2020-10-13 06:02:39,195 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:02:39,197 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 06:02:39,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:02:39,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:02:39,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:02:39,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 525 transitions. [2020-10-13 06:02:39,209 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 525 transitions. Word has length 307 [2020-10-13 06:02:39,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:39,209 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 525 transitions. [2020-10-13 06:02:39,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:39,209 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 525 transitions. [2020-10-13 06:02:39,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2020-10-13 06:02:39,212 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:39,212 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:39,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 06:02:39,212 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:39,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:39,213 INFO L82 PathProgramCache]: Analyzing trace with hash 874817583, now seen corresponding path program 1 times [2020-10-13 06:02:39,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:39,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1553809036] [2020-10-13 06:02:39,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:39,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:39,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:39,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:41,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:41,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 331 [2020-10-13 06:02:41,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:02:41,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2012 [2020-10-13 06:02:41,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:41,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:41,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 209 [2020-10-13 06:02:41,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:02:41,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:41,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:41,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:41,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:41,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:41,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:41,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:41,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:41,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:41,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:41,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:41,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:41,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:41,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:41,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:41,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:41,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:41,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:02:41,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:41,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:41,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:41,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:41,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:41,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:41,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:41,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:41,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:41,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:41,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:41,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:02:41,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:41,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:41,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:41,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:41,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:41,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:41,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:41,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:41,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:41,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:41,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:41,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:02:41,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:41,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:41,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:41,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:41,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:41,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:41,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:41,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:41,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:02:41,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:41,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:41,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:41,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:41,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:41,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:41,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:41,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:02:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:41,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:41,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:41,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:02:41,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:41,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 06:02:41,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:41,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:41,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:41,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 06:02:41,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:42,035 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 183 proven. 5 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2020-10-13 06:02:42,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1553809036] [2020-10-13 06:02:42,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:42,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:02:42,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059242415] [2020-10-13 06:02:42,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:42,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:42,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:42,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:42,037 INFO L87 Difference]: Start difference. First operand 483 states and 525 transitions. Second operand 13 states. [2020-10-13 06:02:43,029 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:02:43,278 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:02:43,554 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:02:43,769 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:02:44,125 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:02:44,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:44,538 INFO L93 Difference]: Finished difference Result 962 states and 1072 transitions. [2020-10-13 06:02:44,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:02:44,539 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 313 [2020-10-13 06:02:44,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:44,542 INFO L225 Difference]: With dead ends: 962 [2020-10-13 06:02:44,542 INFO L226 Difference]: Without dead ends: 545 [2020-10-13 06:02:44,543 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:02:44,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2020-10-13 06:02:44,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 539. [2020-10-13 06:02:44,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:02:44,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 589 transitions. [2020-10-13 06:02:44,556 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 589 transitions. Word has length 313 [2020-10-13 06:02:44,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:44,557 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 589 transitions. [2020-10-13 06:02:44,557 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:44,557 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 589 transitions. [2020-10-13 06:02:44,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-10-13 06:02:44,559 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:44,560 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:44,560 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 06:02:44,560 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:44,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:44,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1264462194, now seen corresponding path program 1 times [2020-10-13 06:02:44,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:44,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1756227845] [2020-10-13 06:02:44,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:44,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:44,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:45,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:45,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 338 [2020-10-13 06:02:45,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:45,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 784 [2020-10-13 06:02:45,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:45,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:45,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:02:45,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 06:02:45,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:45,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:45,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:45,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:45,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:45,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:45,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:45,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:45,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:45,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:45,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:45,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:45,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:45,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:45,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:45,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:45,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:45,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:45,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:02:45,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:45,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:45,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:45,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:45,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:45,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:45,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:45,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:45,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:45,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:45,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:45,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:02:45,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:45,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:45,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:45,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:45,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:45,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:45,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:45,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:45,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:45,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:45,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:45,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:45,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:45,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:45,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:45,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:45,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:45,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:45,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:45,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:02:45,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:45,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:45,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:45,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:45,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:45,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:45,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:45,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:02:45,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:45,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:45,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:45,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:02:45,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:45,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:02:45,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:45,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:45,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:45,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:45,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:45,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:02:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:45,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:45,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:45,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 06:02:45,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:45,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:02:45,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:45,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:45,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:45,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:02:45,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:45,862 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 06:02:45,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1756227845] [2020-10-13 06:02:45,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:45,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:02:45,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278086178] [2020-10-13 06:02:45,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:02:45,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:45,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:02:45,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:02:45,863 INFO L87 Difference]: Start difference. First operand 539 states and 589 transitions. Second operand 5 states. [2020-10-13 06:02:46,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:46,682 INFO L93 Difference]: Finished difference Result 1088 states and 1221 transitions. [2020-10-13 06:02:46,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:46,683 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 318 [2020-10-13 06:02:46,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:46,687 INFO L225 Difference]: With dead ends: 1088 [2020-10-13 06:02:46,687 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:02:46,688 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 06:02:46,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:02:46,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2020-10-13 06:02:46,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:02:46,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 587 transitions. [2020-10-13 06:02:46,701 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 587 transitions. Word has length 318 [2020-10-13 06:02:46,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:46,702 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 587 transitions. [2020-10-13 06:02:46,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:46,702 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 587 transitions. [2020-10-13 06:02:46,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2020-10-13 06:02:46,704 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:46,705 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:46,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 06:02:46,705 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:46,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:46,706 INFO L82 PathProgramCache]: Analyzing trace with hash -225780266, now seen corresponding path program 1 times [2020-10-13 06:02:46,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:46,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1134557120] [2020-10-13 06:02:46,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:46,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:47,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:47,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:47,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 338 [2020-10-13 06:02:47,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:47,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 673 [2020-10-13 06:02:47,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:47,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:47,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:02:47,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-13 06:02:47,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:47,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:47,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:47,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:47,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:47,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:47,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:47,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:47,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:47,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:47,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:47,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:47,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:47,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:47,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:47,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:47,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:47,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:02:47,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:47,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:47,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:47,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:47,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:47,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:47,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:47,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:47,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:47,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:47,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:02:47,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:47,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:47,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:47,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:47,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:47,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:47,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:47,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:47,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:47,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:47,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:47,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:02:47,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:47,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:47,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:47,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:47,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:47,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:47,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:47,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:47,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 06:02:47,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:47,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 06:02:47,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:47,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:47,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:47,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:02:47,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:48,007 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 06:02:48,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1134557120] [2020-10-13 06:02:48,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:48,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:02:48,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201970480] [2020-10-13 06:02:48,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:02:48,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:48,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:02:48,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:02:48,009 INFO L87 Difference]: Start difference. First operand 539 states and 587 transitions. Second operand 5 states. [2020-10-13 06:02:48,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:48,915 INFO L93 Difference]: Finished difference Result 1097 states and 1224 transitions. [2020-10-13 06:02:48,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:48,916 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 322 [2020-10-13 06:02:48,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:48,919 INFO L225 Difference]: With dead ends: 1097 [2020-10-13 06:02:48,919 INFO L226 Difference]: Without dead ends: 481 [2020-10-13 06:02:48,920 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 06:02:48,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-10-13 06:02:48,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2020-10-13 06:02:48,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-10-13 06:02:48,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 526 transitions. [2020-10-13 06:02:48,931 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 526 transitions. Word has length 322 [2020-10-13 06:02:48,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:48,931 INFO L479 AbstractCegarLoop]: Abstraction has 481 states and 526 transitions. [2020-10-13 06:02:48,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:48,931 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 526 transitions. [2020-10-13 06:02:48,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-10-13 06:02:48,934 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:48,934 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:48,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 06:02:48,935 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:48,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:48,935 INFO L82 PathProgramCache]: Analyzing trace with hash 849830326, now seen corresponding path program 1 times [2020-10-13 06:02:48,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:48,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1650822577] [2020-10-13 06:02:48,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:49,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:49,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:49,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:49,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:51,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:51,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 351 [2020-10-13 06:02:51,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:02:51,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2854 [2020-10-13 06:02:51,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:51,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:51,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-13 06:02:51,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:02:51,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:52,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:52,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:52,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:52,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:52,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:52,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:52,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:52,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:52,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:52,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:52,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:52,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:52,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:52,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:52,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:52,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:52,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:52,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 06:02:52,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:52,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:52,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:52,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:52,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:52,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:52,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:52,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:52,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:52,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:52,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:52,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:02:52,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:52,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:52,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:52,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:52,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:02:52,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:52,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:52,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:52,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:52,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:52,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:52,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:52,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:52,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:52,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:52,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:52,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:02:52,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:52,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:52,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:52,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:52,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:02:52,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:52,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:02:52,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:52,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:52,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:52,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:52,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:52,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:02:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:52,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:52,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:52,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:02:52,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:52,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:02:52,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:52,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:52,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:52,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:52,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:52,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:02:52,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:52,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:52,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:52,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 06:02:52,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:52,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:02:52,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:52,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:52,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:52,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 06:02:52,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:52,647 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 200 proven. 6 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2020-10-13 06:02:52,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1650822577] [2020-10-13 06:02:52,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:52,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:02:52,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540129418] [2020-10-13 06:02:52,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:52,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:52,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:52,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:52,653 INFO L87 Difference]: Start difference. First operand 481 states and 526 transitions. Second operand 13 states. [2020-10-13 06:02:53,178 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-13 06:02:54,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:54,208 INFO L93 Difference]: Finished difference Result 969 states and 1090 transitions. [2020-10-13 06:02:54,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:02:54,214 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 331 [2020-10-13 06:02:54,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:54,216 INFO L225 Difference]: With dead ends: 969 [2020-10-13 06:02:54,217 INFO L226 Difference]: Without dead ends: 496 [2020-10-13 06:02:54,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=131, Invalid=249, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:02:54,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-10-13 06:02:54,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 483. [2020-10-13 06:02:54,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:02:54,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 529 transitions. [2020-10-13 06:02:54,229 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 529 transitions. Word has length 331 [2020-10-13 06:02:54,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:54,230 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 529 transitions. [2020-10-13 06:02:54,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:54,230 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 529 transitions. [2020-10-13 06:02:54,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-10-13 06:02:54,232 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:54,233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:54,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 06:02:54,233 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:54,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:54,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1006786519, now seen corresponding path program 1 times [2020-10-13 06:02:54,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:54,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [376133174] [2020-10-13 06:02:54,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:54,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:54,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:54,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:55,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:55,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 352 [2020-10-13 06:02:55,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:02:55,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1222 [2020-10-13 06:02:55,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:55,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:55,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-10-13 06:02:55,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:02:55,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:55,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:55,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:55,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:55,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:55,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:55,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:55,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:55,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:55,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:55,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:55,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:55,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:55,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:55,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:55,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:55,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:55,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:55,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:02:55,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:55,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:55,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:55,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:55,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:55,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:55,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:55,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:55,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:55,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:55,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:02:55,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:55,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:55,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:55,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:55,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:55,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:55,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:55,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:55,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:55,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:55,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:55,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:55,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:55,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:55,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:55,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:55,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:55,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:55,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:55,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:55,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:02:55,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:55,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:55,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:55,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:55,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:55,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:55,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:55,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:02:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:55,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:55,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:55,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 06:02:55,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:55,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 06:02:55,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:55,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:55,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:55,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:02:55,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:55,930 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 06:02:55,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [376133174] [2020-10-13 06:02:55,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:55,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:02:55,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972591273] [2020-10-13 06:02:55,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:02:55,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:55,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:02:55,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:02:55,932 INFO L87 Difference]: Start difference. First operand 483 states and 529 transitions. Second operand 5 states. [2020-10-13 06:02:56,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:56,780 INFO L93 Difference]: Finished difference Result 980 states and 1104 transitions. [2020-10-13 06:02:56,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:56,780 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 334 [2020-10-13 06:02:56,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:56,784 INFO L225 Difference]: With dead ends: 980 [2020-10-13 06:02:56,784 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:02:56,785 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 06:02:56,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:02:56,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:02:56,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:02:56,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 527 transitions. [2020-10-13 06:02:56,797 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 527 transitions. Word has length 334 [2020-10-13 06:02:56,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:56,797 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 527 transitions. [2020-10-13 06:02:56,797 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:56,797 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 527 transitions. [2020-10-13 06:02:56,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-10-13 06:02:56,800 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:56,800 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:56,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 06:02:56,800 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:56,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:56,801 INFO L82 PathProgramCache]: Analyzing trace with hash 884052510, now seen corresponding path program 1 times [2020-10-13 06:02:56,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:56,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270511116] [2020-10-13 06:02:56,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:56,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:56,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:57,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:57,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:59,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:59,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 356 [2020-10-13 06:02:59,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:02:59,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3122 [2020-10-13 06:02:59,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:59,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:59,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 234 [2020-10-13 06:02:59,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:02:59,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:00,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:00,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:00,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:00,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:00,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:00,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:00,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:00,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:00,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:00,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:00,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:00,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:00,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:00,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:00,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:00,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:00,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:00,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:03:00,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:00,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:00,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:00,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:00,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:00,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:03:00,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:00,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:00,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:00,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:03:00,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:00,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:00,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:00,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:00,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:00,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:00,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:00,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:03:00,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:00,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:00,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:00,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:03:00,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:00,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:00,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:00,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:00,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:00,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:00,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:00,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:03:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:00,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:00,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:00,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:03:00,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:00,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:03:00,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:00,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:00,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:00,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:00,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:00,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:03:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:00,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:00,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:00,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:03:00,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:00,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:00,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:00,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:00,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:00,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:00,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:00,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:03:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:00,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:00,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:00,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 06:03:00,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:00,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:03:00,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:00,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:00,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:00,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:03:00,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:00,759 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 205 proven. 6 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-10-13 06:03:00,760 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270511116] [2020-10-13 06:03:00,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:00,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:03:00,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124359325] [2020-10-13 06:03:00,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:03:00,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:00,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:03:00,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:03:00,761 INFO L87 Difference]: Start difference. First operand 483 states and 527 transitions. Second operand 14 states. [2020-10-13 06:03:01,504 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2020-10-13 06:03:01,727 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2020-10-13 06:03:02,011 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2020-10-13 06:03:02,349 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2020-10-13 06:03:02,608 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-13 06:03:02,810 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-13 06:03:03,062 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2020-10-13 06:03:03,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:03,394 INFO L93 Difference]: Finished difference Result 956 states and 1072 transitions. [2020-10-13 06:03:03,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:03:03,395 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 336 [2020-10-13 06:03:03,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:03,398 INFO L225 Difference]: With dead ends: 956 [2020-10-13 06:03:03,398 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:03:03,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=170, Invalid=382, Unknown=0, NotChecked=0, Total=552 [2020-10-13 06:03:03,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:03:03,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 537. [2020-10-13 06:03:03,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:03:03,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 591 transitions. [2020-10-13 06:03:03,412 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 591 transitions. Word has length 336 [2020-10-13 06:03:03,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:03,413 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 591 transitions. [2020-10-13 06:03:03,413 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:03:03,413 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 591 transitions. [2020-10-13 06:03:03,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2020-10-13 06:03:03,415 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:03,415 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:03,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-13 06:03:03,416 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:03,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:03,416 INFO L82 PathProgramCache]: Analyzing trace with hash -699780182, now seen corresponding path program 1 times [2020-10-13 06:03:03,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:03,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [582288913] [2020-10-13 06:03:03,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:03,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:03,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:03,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:04,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:05,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:05,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 357 [2020-10-13 06:03:05,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:03:05,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2148 [2020-10-13 06:03:05,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:05,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:05,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 235 [2020-10-13 06:03:05,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:03:05,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:05,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:05,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:05,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:05,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:05,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:05,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:03:05,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:05,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:05,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:05,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:05,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:05,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:05,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:05,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:05,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:05,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:05,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:05,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:03:05,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:05,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:05,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:05,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:05,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:05,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:03:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:05,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:05,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:05,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:03:05,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:05,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:03:05,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:05,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:05,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:05,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:05,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:05,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:03:05,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:05,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:05,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:05,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:03:05,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:05,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:03:05,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:05,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:05,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:05,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:05,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:05,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:03:05,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:05,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:05,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:05,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:03:05,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:05,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:03:05,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:05,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:05,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:05,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:05,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:05,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:03:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:05,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:05,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:05,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:03:05,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:05,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:05,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:05,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:05,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:05,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:05,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:05,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:03:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:05,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:05,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:05,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 06:03:05,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:05,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 06:03:05,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:05,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:05,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:05,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 06:03:05,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:06,155 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 06:03:06,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [582288913] [2020-10-13 06:03:06,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:06,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:03:06,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036075888] [2020-10-13 06:03:06,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:03:06,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:06,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:03:06,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:03:06,157 INFO L87 Difference]: Start difference. First operand 537 states and 591 transitions. Second operand 5 states. [2020-10-13 06:03:06,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:06,979 INFO L93 Difference]: Finished difference Result 1083 states and 1222 transitions. [2020-10-13 06:03:06,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:03:06,980 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 337 [2020-10-13 06:03:06,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:06,984 INFO L225 Difference]: With dead ends: 1083 [2020-10-13 06:03:06,985 INFO L226 Difference]: Without dead ends: 537 [2020-10-13 06:03:06,987 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 06:03:06,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2020-10-13 06:03:06,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2020-10-13 06:03:06,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:03:06,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 588 transitions. [2020-10-13 06:03:07,000 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 588 transitions. Word has length 337 [2020-10-13 06:03:07,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:07,000 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 588 transitions. [2020-10-13 06:03:07,000 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:03:07,000 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 588 transitions. [2020-10-13 06:03:07,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-10-13 06:03:07,003 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:07,004 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, 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] [2020-10-13 06:03:07,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-13 06:03:07,004 INFO L427 AbstractCegarLoop]: === Iteration 30 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:07,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:07,004 INFO L82 PathProgramCache]: Analyzing trace with hash -706693403, now seen corresponding path program 1 times [2020-10-13 06:03:07,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:07,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247389496] [2020-10-13 06:03:07,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:07,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:07,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:07,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:08,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:08,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 354 [2020-10-13 06:03:08,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:03:08,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1195 [2020-10-13 06:03:08,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:08,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:08,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 232 [2020-10-13 06:03:08,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 06:03:08,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:08,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:08,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:08,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:08,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:08,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:08,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:08,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:08,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:08,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:08,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:08,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:08,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:08,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:08,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:08,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:08,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:08,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:08,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:03:08,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:08,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:08,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:08,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:08,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:08,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:03:08,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:08,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:08,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:08,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:03:08,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:08,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:03:08,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:08,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:08,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:08,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:08,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:08,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:03:08,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:08,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:08,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:08,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:03:08,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:08,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:03:08,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:08,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:08,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:08,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:08,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:08,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:03:08,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:08,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:08,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:08,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:03:08,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:08,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:03:08,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:08,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:08,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:08,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:08,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:08,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:03:08,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:08,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:08,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:08,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 06:03:08,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:08,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 06:03:08,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:08,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:08,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:08,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 06:03:08,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:08,681 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 206 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-13 06:03:08,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247389496] [2020-10-13 06:03:08,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:08,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:03:08,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680220219] [2020-10-13 06:03:08,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:03:08,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:08,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:03:08,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:03:08,683 INFO L87 Difference]: Start difference. First operand 537 states and 588 transitions. Second operand 5 states. [2020-10-13 06:03:09,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:09,554 INFO L93 Difference]: Finished difference Result 1085 states and 1217 transitions. [2020-10-13 06:03:09,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:03:09,555 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 336 [2020-10-13 06:03:09,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:09,558 INFO L225 Difference]: With dead ends: 1085 [2020-10-13 06:03:09,558 INFO L226 Difference]: Without dead ends: 514 [2020-10-13 06:03:09,559 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 06:03:09,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-10-13 06:03:09,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2020-10-13 06:03:09,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2020-10-13 06:03:09,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 562 transitions. [2020-10-13 06:03:09,568 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 562 transitions. Word has length 336 [2020-10-13 06:03:09,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:09,568 INFO L479 AbstractCegarLoop]: Abstraction has 514 states and 562 transitions. [2020-10-13 06:03:09,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:03:09,568 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 562 transitions. [2020-10-13 06:03:09,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2020-10-13 06:03:09,570 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:09,571 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:09,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-13 06:03:09,571 INFO L427 AbstractCegarLoop]: === Iteration 31 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:09,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:09,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1269018866, now seen corresponding path program 1 times [2020-10-13 06:03:09,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:09,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [87900986] [2020-10-13 06:03:09,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:09,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:09,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:10,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:10,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 378 [2020-10-13 06:03:10,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:03:10,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 888 [2020-10-13 06:03:10,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:10,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:10,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-10-13 06:03:10,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 06:03:10,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:10,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:10,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:10,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:10,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:10,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:10,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:10,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:10,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:10,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:10,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:10,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:10,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:10,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:10,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:10,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:10,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:10,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:10,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:03:10,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:10,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:10,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:10,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:10,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:10,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:03:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:10,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:10,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:10,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:03:10,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:10,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:03:10,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:10,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:10,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:10,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:10,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:10,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:03:10,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:10,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:10,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:10,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:03:10,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:10,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:10,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:10,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:10,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:10,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:10,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:10,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:03:10,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:10,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:10,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:10,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:03:10,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:10,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:03:10,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:10,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:10,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:10,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:10,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:10,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:03:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:10,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:10,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:10,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:03:10,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:10,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:03:10,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:10,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:10,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:10,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:10,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:10,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:03:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:10,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:10,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:10,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 06:03:10,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:10,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 06:03:10,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:10,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:10,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:10,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 06:03:10,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:10,981 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 227 proven. 6 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2020-10-13 06:03:10,982 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [87900986] [2020-10-13 06:03:10,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:10,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:03:10,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408457595] [2020-10-13 06:03:10,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:03:10,983 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:10,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:03:10,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:03:10,983 INFO L87 Difference]: Start difference. First operand 514 states and 562 transitions. Second operand 6 states. [2020-10-13 06:03:11,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:11,601 INFO L93 Difference]: Finished difference Result 897 states and 993 transitions. [2020-10-13 06:03:11,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:03:11,606 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 358 [2020-10-13 06:03:11,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:11,607 INFO L225 Difference]: With dead ends: 897 [2020-10-13 06:03:11,607 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:03:11,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 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 06:03:11,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:03:11,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:03:11,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:03:11,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:03:11,610 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 358 [2020-10-13 06:03:11,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:11,610 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:03:11,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:03:11,610 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:03:11,610 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:03:11,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-13 06:03:11,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:03:12,234 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 182 [2020-10-13 06:03:12,390 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 184 [2020-10-13 06:03:18,187 WARN L193 SmtUtils]: Spent 5.69 s on a formula simplification. DAG size of input: 339 DAG size of output: 257 [2020-10-13 06:03:19,886 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 182 DAG size of output: 150 [2020-10-13 06:03:21,257 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 182 DAG size of output: 117 [2020-10-13 06:03:21,261 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:03:21,262 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 06:03:21,262 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:03:21,262 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-13 06:03:21,263 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-13 06:03:21,263 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,263 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,263 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,263 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,264 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,264 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,264 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-13 06:03:21,264 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-13 06:03:21,265 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-13 06:03:21,265 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-13 06:03:21,265 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-13 06:03:21,265 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-13 06:03:21,265 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-13 06:03:21,265 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-13 06:03:21,265 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-13 06:03:21,265 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-13 06:03:21,267 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,267 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,267 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,267 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,267 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,267 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,267 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-13 06:03:21,267 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-13 06:03:21,268 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-13 06:03:21,268 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-13 06:03:21,268 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-13 06:03:21,269 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-13 06:03:21,269 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-13 06:03:21,269 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-13 06:03:21,269 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-13 06:03:21,269 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-13 06:03:21,269 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-13 06:03:21,270 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 524) no Hoare annotation was computed. [2020-10-13 06:03:21,270 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-13 06:03:21,270 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-13 06:03:21,270 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-13 06:03:21,270 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-13 06:03:21,270 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,270 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,270 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,270 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,270 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,271 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-13 06:03:21,271 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-13 06:03:21,271 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-13 06:03:21,271 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-13 06:03:21,271 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-13 06:03:21,271 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-13 06:03:21,271 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-13 06:03:21,271 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-13 06:03:21,271 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-13 06:03:21,272 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,272 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,272 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,272 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,272 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,272 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-13 06:03:21,273 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-13 06:03:21,273 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-13 06:03:21,273 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-13 06:03:21,275 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-13 06:03:21,275 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-13 06:03:21,275 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-13 06:03:21,276 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-13 06:03:21,276 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-13 06:03:21,276 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-13 06:03:21,276 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-13 06:03:21,276 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-13 06:03:21,276 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-13 06:03:21,276 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,276 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,276 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,276 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,277 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,277 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-13 06:03:21,277 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-13 06:03:21,277 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-13 06:03:21,277 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-13 06:03:21,277 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-13 06:03:21,277 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-13 06:03:21,277 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-13 06:03:21,277 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-13 06:03:21,277 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-13 06:03:21,277 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,278 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,278 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,278 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,278 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,278 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,278 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-13 06:03:21,278 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,278 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-13 06:03:21,278 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-13 06:03:21,278 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-13 06:03:21,279 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-13 06:03:21,279 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-13 06:03:21,279 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-13 06:03:21,279 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-13 06:03:21,279 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-13 06:03:21,279 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-13 06:03:21,279 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-13 06:03:21,280 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-13 06:03:21,280 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-13 06:03:21,280 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-13 06:03:21,280 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,280 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,280 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,280 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,280 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,280 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-13 06:03:21,280 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-13 06:03:21,281 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-13 06:03:21,281 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-13 06:03:21,281 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-13 06:03:21,281 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-13 06:03:21,281 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-13 06:03:21,281 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-13 06:03:21,281 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,281 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,281 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,282 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,282 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,282 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-13 06:03:21,282 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-13 06:03:21,283 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-13 06:03:21,283 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-13 06:03:21,283 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-13 06:03:21,283 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-13 06:03:21,283 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-13 06:03:21,283 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-13 06:03:21,283 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-13 06:03:21,283 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-13 06:03:21,284 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse23 (= |old(~a21~0)| 1)) (.cse56 (= 14 ~a8~0)) (.cse26 (= ~a7~0 0)) (.cse51 (= |old(~a20~0)| 1)) (.cse54 (= |old(~a17~0)| 1)) (.cse8 (= |old(~a7~0)| 1)) (.cse25 (= 5 ~a16~0)) (.cse60 (not (= |calculate_output_#in~input| 3))) (.cse61 (not (= |calculate_output_#in~input| 2))) (.cse62 (not (= |calculate_output_#in~input| 4))) (.cse63 (not (= |calculate_output_#in~input| 1))) (.cse64 (not (= |calculate_output_#in~input| 6))) (.cse17 (= ~a7~0 |old(~a7~0)|)) (.cse18 (= ~a17~0 |old(~a17~0)|)) (.cse53 (= ~a21~0 1)) (.cse20 (= ~a20~0 |old(~a20~0)|)) (.cse24 (= ~a8~0 15)) (.cse22 (= ~a16~0 4))) (let ((.cse10 (not (= 0 |old(~a20~0)|))) (.cse32 (not (<= |old(~a8~0)| 15))) (.cse34 (not (<= 15 |old(~a8~0)|))) (.cse46 (not (<= 5 |old(~a16~0)|))) (.cse48 (not (<= |old(~a16~0)| 5))) (.cse36 (<= 1 ~a7~0)) (.cse37 (<= ~a16~0 4)) (.cse50 (= ~a8~0 |old(~a8~0)|)) (.cse38 (<= 4 ~a16~0)) (.cse41 (<= ~a7~0 1)) (.cse43 (not (<= |old(~a7~0)| 1))) (.cse42 (not (<= |old(~a16~0)| 4))) (.cse47 (not (<= |old(~a17~0)| 1))) (.cse30 (not (<= |old(~a20~0)| 1))) (.cse31 (not (<= 4 |old(~a16~0)|))) (.cse35 (not (<= 1 |old(~a7~0)|))) (.cse57 (not (= |old(~a7~0)| |old(~a17~0)|))) (.cse44 (not (<= |old(~a20~0)| 0))) (.cse28 (= |old(~a20~0)| |old(~a21~0)|)) (.cse65 (not (= |old(~a7~0)| |old(~a20~0)|))) (.cse11 (and .cse17 .cse18 .cse53 .cse20 .cse24 .cse22)) (.cse9 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (or (not (<= |calculate_output_#in~input| 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))))) (.cse19 (= ~a21~0 |old(~a21~0)|)) (.cse49 (= ~a16~0 |old(~a16~0)|)) (.cse52 (not (= 6 |old(~a16~0)|))) (.cse4 (and .cse60 .cse61 .cse62 .cse63 (not (= |calculate_output_#in~input| 5)) .cse64)) (.cse0 (and .cse17 .cse18 .cse53 .cse20 .cse24 .cse25)) (.cse59 (not (= |old(~a17~0)| |old(~a20~0)|))) (.cse16 (not .cse8)) (.cse3 (not (= 5 |old(~a16~0)|))) (.cse5 (not (= 15 |old(~a8~0)|))) (.cse13 (not (= 0 |old(~a17~0)|))) (.cse14 (not (= |old(~a8~0)| 13))) (.cse45 (not (<= |old(~a7~0)| 0))) (.cse33 (not (<= |old(~a21~0)| 1))) (.cse21 (= ~a8~0 13)) (.cse39 (<= ~a21~0 1)) (.cse40 (<= 1 ~a21~0)) (.cse27 (not (<= 1 |old(~a21~0)|))) (.cse2 (not (<= |old(~a17~0)| 0))) (.cse15 (not .cse54)) (.cse55 (not (= 14 |old(~a8~0)|))) (.cse1 (not .cse51)) (.cse58 (and .cse18 .cse53 .cse20 .cse56 .cse22 .cse26)) (.cse6 (not .cse23)) (.cse7 (not (= ~a12~0 8))) (.cse29 (not (= |old(~a7~0)| 0))) (.cse12 (not (= 4 |old(~a16~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (or .cse9 .cse10 .cse11 .cse5 .cse6 .cse7 .cse12 .cse13) (or .cse14 .cse15 .cse16 (and .cse17 .cse18 .cse19 .cse20 .cse21 .cse22) .cse10 .cse23 .cse4 .cse7 .cse12) (or .cse15 (and .cse18 .cse20 .cse24 (= ~a21~0 ~a20~0) .cse25 .cse26) .cse27 (not .cse28) .cse3 .cse4 .cse5 .cse7 .cse29 .cse30) (or .cse31 .cse32 .cse33 .cse34 .cse35 .cse27 (and .cse36 .cse18 .cse20 .cse37 .cse38 .cse39 .cse40 (<= ~a8~0 15) (<= 15 ~a8~0) .cse41) .cse42 .cse43 .cse2 .cse7 .cse44) (or (and .cse45 (not (<= 2 |old(~a7~0)|))) .cse46 (and (not (<= 2 |old(~a20~0)|)) .cse44) .cse32 .cse33 .cse47 (not (< 0 |old(~a17~0)|)) .cse9 .cse48 .cse34 .cse27 (and .cse18 .cse17 .cse19 .cse20 .cse49 .cse50) .cse7) (or (and (or .cse14 .cse15 .cse16 .cse1 .cse4 .cse7 .cse12) (or .cse51 .cse52 .cse4 .cse5 .cse6 .cse7 .cse8 .cse13)) (and .cse20 .cse49 (or (and .cse17 .cse19 .cse21 .cse22 (= ~a17~0 1)) (and .cse17 .cse53 .cse24 (not (= ~a20~0 1)) (= ~a17~0 0))))) (or .cse14 .cse51 .cse54 .cse6 (and .cse17 .cse18 .cse53 .cse20 .cse21 .cse22) .cse7 .cse12 .cse8) (or .cse15 .cse51 .cse11 .cse4 .cse5 .cse6 .cse7 .cse12 .cse8) (or .cse14 .cse15 .cse52 .cse1 (and .cse18 .cse53 .cse20 .cse49 .cse21 .cse26) .cse6 .cse7 .cse29) (or .cse55 (and .cse17 .cse18 .cse53 .cse20 .cse50 .cse22) .cse16 .cse2 .cse6 .cse7 .cse44 .cse12) (or .cse55 .cse33 .cse1 .cse43 (not (<= |old(~a20~0)| |old(~a7~0)|)) .cse2 (not (<= |old(~a20~0)| |old(~a21~0)|)) .cse3 (and .cse18 .cse20 .cse56 (<= ~a20~0 ~a7~0) .cse39 .cse25 (<= ~a20~0 ~a21~0) .cse41) .cse7) (or .cse55 .cse57 .cse1 .cse58 .cse6 .cse7 .cse29 .cse12) (or .cse14 .cse15 (not (= 0 |old(~a21~0)|)) (and .cse17 .cse18 .cse20 .cse21 (= ~a21~0 0) .cse25) .cse16 .cse1 .cse3 .cse4 .cse7) (or (and .cse18 .cse53 .cse20 .cse56 .cse22 (= ~a17~0 ~a7~0)) .cse55 .cse57 .cse59 .cse6 .cse7 .cse12 .cse13) (or .cse0 .cse3 .cse5 .cse6 (and .cse60 .cse61 (not (= |calculate_output_#in~input| |old(~a16~0)|)) .cse62 .cse63 .cse64) .cse7 .cse8 .cse13) (or .cse46 (not (<= 14 |old(~a8~0)|)) .cse33 .cse48 (and .cse36 .cse18 .cse20 .cse49 .cse50 .cse39 .cse40 .cse41) .cse35 .cse27 .cse43 (not (<= |old(~a8~0)| 14)) .cse2 .cse7 .cse44) (or .cse33 (not (<= 1 |old(~a17~0)|)) (and .cse36 .cse18 .cse20 .cse37 .cse50 .cse38 .cse39 .cse40 .cse41) .cse43 .cse42 (not (<= 13 |old(~a8~0)|)) .cse47 (not (<= 1 |old(~a20~0)|)) .cse30 .cse31 .cse35 .cse27 (not (<= |old(~a8~0)| 13)) .cse7) (or .cse55 .cse57 (and .cse18 .cse53 .cse20 .cse56 .cse25 .cse26) .cse65 .cse3 .cse6 .cse7 .cse29) (or .cse15 .cse52 (and .cse17 .cse18 .cse53 .cse20 .cse49 .cse24) .cse4 .cse5 .cse6 .cse7 .cse44 .cse8) (or .cse14 .cse9 (and .cse18 .cse19 .cse20 .cse21 .cse22 (= ~a20~0 ~a7~0)) .cse28 .cse1 .cse65 .cse7 .cse12 .cse13) (or .cse9 .cse1 .cse11 .cse5 .cse6 .cse7 .cse12 .cse8 .cse13) (or .cse9 (and .cse18 .cse17 .cse53 .cse20 .cse49 .cse24) .cse52 .cse1 .cse54 .cse5 .cse6 .cse7 .cse8) (or .cse14 .cse15 (and .cse18 .cse53 .cse20 .cse21 .cse22 .cse26) .cse1 .cse6 .cse7 .cse29 .cse12) (or .cse14 (and .cse17 .cse18 .cse19 .cse20 .cse49 .cse21) .cse16 .cse52 .cse1 .cse2 .cse23 .cse4 .cse7) (or .cse0 .cse59 .cse16 .cse3 .cse5 .cse6 .cse7 .cse13) (or .cse14 .cse45 .cse33 (and .cse17 .cse18 .cse20 .cse21 .cse39 .cse22 .cse40) .cse27 .cse2 .cse7 .cse12) (or .cse15 .cse55 .cse1 .cse58 .cse6 .cse7 .cse29 .cse12)))) [2020-10-13 06:03:21,284 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-13 06:03:21,285 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,285 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,285 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,285 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,285 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-13 06:03:21,285 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,285 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,285 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-13 06:03:21,285 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-13 06:03:21,285 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-13 06:03:21,286 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-13 06:03:21,286 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-13 06:03:21,286 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-13 06:03:21,286 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-13 06:03:21,286 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-13 06:03:21,286 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-13 06:03:21,286 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-13 06:03:21,286 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-13 06:03:21,286 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-13 06:03:21,286 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,286 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,287 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,287 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,287 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,287 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-13 06:03:21,287 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,287 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-13 06:03:21,287 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-13 06:03:21,287 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-13 06:03:21,287 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-13 06:03:21,287 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-13 06:03:21,288 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-13 06:03:21,288 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-13 06:03:21,288 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-13 06:03:21,288 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-13 06:03:21,288 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-13 06:03:21,288 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-13 06:03:21,288 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-13 06:03:21,288 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-13 06:03:21,288 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-13 06:03:21,288 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,288 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,288 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,288 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,288 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,288 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:21,289 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-13 06:03:21,289 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-13 06:03:21,289 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-13 06:03:21,289 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-13 06:03:21,289 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-13 06:03:21,289 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-13 06:03:21,289 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-13 06:03:21,289 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-13 06:03:21,289 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-13 06:03:21,289 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-13 06:03:21,289 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:03:21,289 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 ~a20~0) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-13 06:03:21,289 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:03:21,289 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:03:21,290 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (and (= ~a17~0 |old(~a17~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 15) (= ~a21~0 ~a20~0) (= 5 ~a16~0) (= ~a7~0 0)) (not (= |old(~a20~0)| 1)) (not (= |old(~a20~0)| |old(~a21~0)|)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-13 06:03:21,290 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:03:21,290 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse38 (= 6 main_~input~0)) (.cse39 (= main_~input~0 4)) (.cse40 (= 3 main_~input~0)) (.cse41 (= main_~input~0 1)) (.cse42 (= 2 main_~input~0)) (.cse9 (= ~a7~0 1)) (.cse43 (and (<= main_~input~0 1) (<= 1 main_~input~0))) (.cse44 (and (<= main_~input~0 5) (<= 5 main_~input~0))) (.cse36 (= ~a20~0 1)) (.cse22 (= ~a21~0 1)) (.cse14 (= ~a17~0 1))) (let ((.cse1 (<= 1 ~a17~0)) (.cse4 (<= ~a17~0 1)) (.cse2 (<= ~a16~0 4)) (.cse3 (<= 4 ~a16~0)) (.cse20 (<= ~a8~0 15)) (.cse21 (<= 15 ~a8~0)) (.cse31 (not .cse14)) (.cse11 (not .cse22)) (.cse32 (not .cse36)) (.cse8 (= ~a20~0 0)) (.cse23 (= ~a16~0 6)) (.cse18 (<= ~a7~0 0)) (.cse28 (= ~a20~0 ~a17~0)) (.cse33 (= ~a17~0 ~a7~0)) (.cse27 (= 14 ~a8~0)) (.cse35 (= ~a7~0 0)) (.cse17 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 2 main_~input~0) (<= main_~input~0 2)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) .cse43 .cse44)) (.cse37 (= ~a21~0 ~a20~0)) (.cse13 (= ~a16~0 4)) (.cse34 (= ~a20~0 ~a7~0)) (.cse30 (= ~a17~0 0)) (.cse24 (= ~a8~0 15)) (.cse25 (not .cse9)) (.cse10 (or (= 5 main_~input~0) .cse38 .cse39 .cse40 .cse41 .cse42)) (.cse12 (= ~a8~0 13)) (.cse29 (= 5 ~a16~0)) (.cse0 (<= 1 ~a7~0)) (.cse15 (<= ~a16~0 5)) (.cse26 (<= ~a17~0 0)) (.cse5 (<= ~a21~0 1)) (.cse6 (<= 1 ~a21~0)) (.cse19 (<= 5 ~a16~0)) (.cse7 (<= ~a7~0 1)) (.cse16 (<= ~a20~0 0))) (or (and .cse0 (<= 13 ~a8~0) (<= 1 ~a20~0) .cse1 .cse2 .cse3 .cse4 .cse5 (<= ~a20~0 1) .cse6 .cse7 (<= ~a8~0 13)) (and .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14) (and .cse1 .cse15 (or (< 1 ~a20~0) .cse16) .cse17 (or (< 1 ~a7~0) .cse18) .cse5 .cse4 .cse6 .cse19 .cse20 .cse21) (and .cse22 .cse23 .cse10 .cse24 .cse25 .cse14 .cse16) (and .cse0 .cse2 .cse26 .cse3 .cse5 .cse6 .cse20 .cse7 .cse21 .cse16) (and .cse22 .cse9 .cse27 .cse26 .cse13 .cse16) (not (= |old(~a20~0)| 1)) (and .cse28 .cse22 .cse9 .cse24 .cse29 .cse30) (and .cse22 .cse31 .cse12 .cse13 .cse25 .cse32) (and .cse22 .cse27 .cse29 .cse33 .cse34 .cse35) (and .cse23 .cse31 .cse17 .cse24 .cse36 .cse37 .cse25) (and .cse9 .cse23 .cse10 .cse26 .cse11 .cse12 .cse36) (not (= |old(~a20~0)| |old(~a21~0)|)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)) (and .cse27 (<= ~a20~0 ~a7~0) .cse26 .cse36 .cse5 .cse29 (<= ~a20~0 ~a21~0) .cse7) (and .cse22 .cse10 .cse24 .cse13 .cse25 .cse32 .cse14) (and .cse22 .cse24 (or .cse38 (= ~a16~0 main_~input~0) .cse39 .cse40 .cse41 .cse42) .cse25 .cse29 .cse30) (and (= ~a17~0 |old(~a17~0)|) (= ~a20~0 |old(~a20~0)|) .cse24 .cse37 (or .cse38 .cse39 .cse43 .cse40 .cse44 .cse42) .cse29 .cse35) (and .cse22 .cse27 .cse36 .cse13 .cse33 .cse35) (and .cse8 .cse22 .cse17 .cse24 .cse13 .cse30) (and .cse22 .cse23 .cse12 .cse36 .cse35 .cse14) (and .cse22 .cse23 .cse10 .cse24 .cse25 .cse30) (and .cse22 .cse12 .cse36 .cse13 .cse35 .cse14) (and .cse26 .cse18 .cse12 .cse13 .cse5 .cse6) (not (= |old(~a17~0)| 1)) (and .cse22 .cse17 .cse24 .cse36 .cse13 .cse25 .cse30) (and .cse28 .cse22 .cse27 .cse13 .cse33 .cse30) (and .cse9 .cse10 .cse12 .cse36 .cse13 .cse14) (and .cse22 .cse27 .cse36 .cse13 .cse35 .cse14) (and .cse17 .cse12 (not .cse37) .cse36 .cse13 .cse34 .cse30) (and .cse22 .cse10 .cse26 .cse24 .cse36 .cse25 .cse29) (and .cse9 .cse10 .cse12 (= ~a21~0 0) .cse36 .cse29 .cse14) (and .cse0 (<= 14 ~a8~0) (<= ~a8~0 14) .cse15 .cse26 .cse5 .cse6 .cse19 .cse7 .cse16)))) [2020-10-13 06:03:21,290 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-13 06:03:21,290 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-13 06:03:21,291 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= ~a7~0 1)) (.cse4 (= ~a17~0 1)) (.cse5 (= ~a21~0 1)) (.cse2 (= ~a20~0 1))) (let ((.cse25 (= ~a20~0 ~a7~0)) (.cse23 (not .cse2)) (.cse11 (<= ~a16~0 4)) (.cse13 (<= 4 ~a16~0)) (.cse29 (not .cse5)) (.cse22 (not .cse4)) (.cse27 (= ~a21~0 ~a20~0)) (.cse3 (= 5 ~a16~0)) (.cse6 (= ~a16~0 6)) (.cse1 (= ~a8~0 13)) (.cse8 (not .cse0)) (.cse32 (= ~a20~0 ~a17~0)) (.cse24 (= ~a17~0 ~a7~0)) (.cse20 (= 14 ~a8~0)) (.cse26 (= ~a7~0 0)) (.cse30 (<= 1 ~a17~0)) (.cse33 (<= ~a7~0 0)) (.cse31 (<= ~a17~0 1)) (.cse16 (<= ~a8~0 15)) (.cse18 (<= 15 ~a8~0)) (.cse28 (= ~a20~0 0)) (.cse7 (= ~a8~0 15)) (.cse21 (= ~a16~0 4)) (.cse9 (= ~a17~0 0)) (.cse10 (<= 1 ~a7~0)) (.cse34 (<= ~a16~0 5)) (.cse12 (<= ~a17~0 0)) (.cse14 (<= ~a21~0 1)) (.cse15 (<= 1 ~a21~0)) (.cse35 (<= 5 ~a16~0)) (.cse17 (<= ~a7~0 1)) (.cse19 (<= ~a20~0 0))) (or (and .cse0 .cse1 (= ~a21~0 0) .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19) (and .cse5 .cse0 .cse20 .cse12 .cse21 .cse19) (not (= |old(~a20~0)| 1)) (and .cse5 .cse22 .cse1 .cse21 .cse8 .cse23) (and .cse5 .cse7 .cse8 .cse3 .cse9) (and .cse5 .cse20 .cse3 .cse24 .cse25 .cse26) (and .cse1 (not .cse27) .cse2 .cse21 .cse25 .cse9) (and (= ~a17~0 |old(~a17~0)|) (= ~a20~0 |old(~a20~0)|) .cse7 .cse27 .cse3 .cse26) (not (= |old(~a20~0)| |old(~a21~0)|)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)) (and .cse20 (<= ~a20~0 ~a7~0) .cse12 .cse2 .cse14 .cse3 (<= ~a20~0 ~a21~0) .cse17) (and .cse28 .cse0 .cse29 .cse1 .cse21 .cse4) (and .cse5 .cse7 .cse21 .cse8 .cse23 .cse4) (and .cse10 (<= 13 ~a8~0) (<= 1 ~a20~0) .cse30 .cse11 .cse13 .cse31 (<= ~a20~0 1) .cse17 (<= ~a8~0 13)) (and .cse5 .cse12 .cse7 .cse2 .cse3 .cse8) (and .cse5 .cse20 .cse2 .cse21 .cse24 .cse26) (and .cse5 .cse6 .cse1 .cse2 .cse26 .cse4) (and .cse0 .cse6 .cse12 .cse29 .cse1 .cse2) (and .cse6 .cse22 .cse7 .cse2 .cse27 .cse8) (and .cse32 .cse5 .cse7 .cse3 .cse9) (and .cse5 .cse6 .cse7 .cse8 .cse4 .cse19) (and .cse5 .cse1 .cse2 .cse21 .cse26 .cse4) (and .cse12 .cse33 .cse1 .cse21 .cse14 .cse15) (not (= |old(~a17~0)| 1)) (and .cse5 .cse7 .cse2 .cse21 .cse8 .cse9) (and .cse32 .cse5 .cse20 .cse21 .cse24 .cse9) (and .cse5 .cse20 .cse2 .cse21 .cse26 .cse4) (and .cse30 .cse34 (or (< 1 ~a20~0) .cse19) (or (< 1 ~a7~0) .cse33) .cse14 .cse31 .cse15 .cse35 .cse16 .cse18) (and .cse28 .cse5 .cse7 .cse21 .cse9) (and .cse10 (<= 14 ~a8~0) (<= ~a8~0 14) .cse34 .cse12 .cse14 .cse15 .cse35 .cse17 .cse19)))) [2020-10-13 06:03:21,291 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:03:21,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:03:21 BoogieIcfgContainer [2020-10-13 06:03:21,342 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:03:21,347 INFO L168 Benchmark]: Toolchain (without parser) took 159977.72 ms. Allocated memory was 140.5 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 101.8 MB in the beginning and 97.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-10-13 06:03:21,348 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 06:03:21,348 INFO L168 Benchmark]: CACSL2BoogieTranslator took 822.94 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 101.3 MB in the beginning and 171.1 MB in the end (delta: -69.8 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. [2020-10-13 06:03:21,349 INFO L168 Benchmark]: Boogie Preprocessor took 149.48 ms. Allocated memory is still 205.5 MB. Free memory was 171.1 MB in the beginning and 166.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-10-13 06:03:21,353 INFO L168 Benchmark]: RCFGBuilder took 1424.04 ms. Allocated memory was 205.5 MB in the beginning and 237.5 MB in the end (delta: 32.0 MB). Free memory was 165.7 MB in the beginning and 177.6 MB in the end (delta: -12.0 MB). Peak memory consumption was 80.3 MB. Max. memory is 7.1 GB. [2020-10-13 06:03:21,353 INFO L168 Benchmark]: TraceAbstraction took 157571.00 ms. Allocated memory was 237.5 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 176.2 MB in the beginning and 97.5 MB in the end (delta: 78.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-10-13 06:03:21,355 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 822.94 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 101.3 MB in the beginning and 171.1 MB in the end (delta: -69.8 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 149.48 ms. Allocated memory is still 205.5 MB. Free memory was 171.1 MB in the beginning and 166.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1424.04 ms. Allocated memory was 205.5 MB in the beginning and 237.5 MB in the end (delta: 32.0 MB). Free memory was 165.7 MB in the beginning and 177.6 MB in the end (delta: -12.0 MB). Peak memory consumption was 80.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 157571.00 ms. Allocated memory was 237.5 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 176.2 MB in the beginning and 97.5 MB in the end (delta: 78.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 524]: 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: ((((((((((((((((((((((((((((((((((((((a7 == 1 && a8 == 13) && a21 == 0) && a20 == 1) && 5 == a16) && a17 == 1) || ((((a21 == 1 && a16 == 6) && a8 == 15) && !(a7 == 1)) && a17 == 0)) || (((((((((1 <= a7 && a16 <= 4) && a17 <= 0) && 4 <= a16) && a21 <= 1) && 1 <= a21) && a8 <= 15) && a7 <= 1) && 15 <= a8) && a20 <= 0)) || (((((a21 == 1 && a7 == 1) && 14 == a8) && a17 <= 0) && a16 == 4) && a20 <= 0)) || !(\old(a20) == 1)) || (((((a21 == 1 && !(a17 == 1)) && a8 == 13) && a16 == 4) && !(a7 == 1)) && !(a20 == 1))) || ((((a21 == 1 && a8 == 15) && !(a7 == 1)) && 5 == a16) && a17 == 0)) || (((((a21 == 1 && 14 == a8) && 5 == a16) && a17 == a7) && a20 == a7) && a7 == 0)) || (((((a8 == 13 && !(a21 == a20)) && a20 == 1) && a16 == 4) && a20 == a7) && a17 == 0)) || (((((a17 == \old(a17) && a20 == \old(a20)) && a8 == 15) && a21 == a20) && 5 == a16) && a7 == 0)) || !(\old(a20) == \old(a21))) || !(5 == \old(a16))) || !(15 == \old(a8))) || !(\old(a7) == 0)) || !(a12 == 8)) || (((((((14 == a8 && a20 <= a7) && a17 <= 0) && a20 == 1) && a21 <= 1) && 5 == a16) && a20 <= a21) && a7 <= 1)) || (((((a20 == 0 && a7 == 1) && !(a21 == 1)) && a8 == 13) && a16 == 4) && a17 == 1)) || (((((a21 == 1 && a8 == 15) && a16 == 4) && !(a7 == 1)) && !(a20 == 1)) && a17 == 1)) || (((((((((1 <= a7 && 13 <= a8) && 1 <= a20) && 1 <= a17) && a16 <= 4) && 4 <= a16) && a17 <= 1) && a20 <= 1) && a7 <= 1) && a8 <= 13)) || (((((a21 == 1 && a17 <= 0) && a8 == 15) && a20 == 1) && 5 == a16) && !(a7 == 1))) || (((((a21 == 1 && 14 == a8) && a20 == 1) && a16 == 4) && a17 == a7) && a7 == 0)) || (((((a21 == 1 && a16 == 6) && a8 == 13) && a20 == 1) && a7 == 0) && a17 == 1)) || (((((a7 == 1 && a16 == 6) && a17 <= 0) && !(a21 == 1)) && a8 == 13) && a20 == 1)) || (((((a16 == 6 && !(a17 == 1)) && a8 == 15) && a20 == 1) && a21 == a20) && !(a7 == 1))) || ((((a20 == a17 && a21 == 1) && a8 == 15) && 5 == a16) && a17 == 0)) || (((((a21 == 1 && a16 == 6) && a8 == 15) && !(a7 == 1)) && a17 == 1) && a20 <= 0)) || (((((a21 == 1 && a8 == 13) && a20 == 1) && a16 == 4) && a7 == 0) && a17 == 1)) || (((((a17 <= 0 && a7 <= 0) && a8 == 13) && a16 == 4) && a21 <= 1) && 1 <= a21)) || !(\old(a17) == 1)) || (((((a21 == 1 && a8 == 15) && a20 == 1) && a16 == 4) && !(a7 == 1)) && a17 == 0)) || (((((a20 == a17 && a21 == 1) && 14 == a8) && a16 == 4) && a17 == a7) && a17 == 0)) || (((((a21 == 1 && 14 == a8) && a20 == 1) && a16 == 4) && a7 == 0) && a17 == 1)) || (((((((((1 <= a17 && a16 <= 5) && (1 < a20 || a20 <= 0)) && (1 < a7 || a7 <= 0)) && a21 <= 1) && a17 <= 1) && 1 <= a21) && 5 <= a16) && a8 <= 15) && 15 <= a8)) || ((((a20 == 0 && a21 == 1) && a8 == 15) && a16 == 4) && a17 == 0)) || (((((((((1 <= a7 && 14 <= a8) && a8 <= 14) && a16 <= 5) && a17 <= 0) && a21 <= 1) && 1 <= a21) && 5 <= a16) && a7 <= 1) && a20 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 147.7s, OverallIterations: 31, TraceHistogramMax: 7, AutomataDifference: 60.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 797 SDtfs, 9248 SDslu, 1139 SDs, 0 SdLazy, 22279 SolverSat, 1276 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 787 GetRequests, 353 SyntacticMatches, 24 SemanticMatches, 410 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1122 ImplicationChecksByTransitivity, 41.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=606occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 31 MinimizatonAttempts, 225 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 206 PreInvPairs, 262 NumberOfFragments, 3844 HoareAnnotationTreeSize, 206 FomulaSimplifications, 1183 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3513 FormulaSimplificationTreeSizeReductionInter, 8.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 79.1s InterpolantComputationTime, 7896 NumberOfCodeBlocks, 7896 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 7865 ConstructedInterpolants, 0 QuantifiedInterpolants, 20467467 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 1 PerfectInterpolantSequences, 8142/8252 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...