/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_label49.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:05:33,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:05:33,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:05:33,917 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:05:33,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:05:33,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:05:33,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:05:33,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:05:33,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:05:33,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:05:33,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:05:33,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:05:33,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:05:33,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:05:33,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:05:33,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:05:33,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:05:33,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:05:33,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:05:33,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:05:33,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:05:33,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:05:33,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:05:33,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:05:33,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:05:33,973 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:05:33,973 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:05:33,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:05:33,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:05:33,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:05:33,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:05:33,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:05:33,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:05:33,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:05:33,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:05:33,986 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:05:33,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:05:33,987 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:05:33,987 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:05:33,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:05:33,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:05:33,991 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 06:05:34,036 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:05:34,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:05:34,039 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:05:34,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:05:34,039 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:05:34,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:05:34,040 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:05:34,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:05:34,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:05:34,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:05:34,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:05:34,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:05:34,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:05:34,042 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:05:34,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:05:34,043 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:05:34,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:05:34,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:05:34,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:05:34,043 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:05:34,044 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:05:34,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:05:34,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:05:34,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:05:34,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:05:34,045 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:05:34,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:05:34,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:05:34,045 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:05:34,045 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 06:05:34,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:05:34,335 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:05:34,339 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:05:34,340 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:05:34,341 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:05:34,342 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label49.c [2020-10-13 06:05:34,408 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a49285b3e/b4b50cae05ea49c2a13882e83c0f6058/FLAG7b72214e4 [2020-10-13 06:05:34,976 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:05:34,977 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label49.c [2020-10-13 06:05:34,988 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a49285b3e/b4b50cae05ea49c2a13882e83c0f6058/FLAG7b72214e4 [2020-10-13 06:05:35,234 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a49285b3e/b4b50cae05ea49c2a13882e83c0f6058 [2020-10-13 06:05:35,245 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:05:35,248 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:05:35,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:05:35,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:05:35,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:05:35,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:05:35" (1/1) ... [2020-10-13 06:05:35,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17ca24e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:05:35, skipping insertion in model container [2020-10-13 06:05:35,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:05:35" (1/1) ... [2020-10-13 06:05:35,269 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:05:35,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:05:35,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:05:35,800 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:05:36,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:05:36,084 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:05:36,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:05:36 WrapperNode [2020-10-13 06:05:36,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:05:36,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:05:36,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:05:36,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:05:36,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:05:36" (1/1) ... [2020-10-13 06:05:36,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:05:36" (1/1) ... [2020-10-13 06:05:36,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:05:36" (1/1) ... [2020-10-13 06:05:36,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:05:36" (1/1) ... [2020-10-13 06:05:36,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:05:36" (1/1) ... [2020-10-13 06:05:36,193 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:05:36" (1/1) ... [2020-10-13 06:05:36,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:05:36" (1/1) ... [2020-10-13 06:05:36,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:05:36,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:05:36,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:05:36,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:05:36,207 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:05:36" (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 06:05:36,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:05:36,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:05:36,279 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:05:36,280 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:05:36,280 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:05:36,280 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:05:36,280 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:05:36,280 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:05:36,281 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:05:36,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:05:36,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:05:37,470 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:05:37,471 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:05:37,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:05:37 BoogieIcfgContainer [2020-10-13 06:05:37,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:05:37,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:05:37,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:05:37,482 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:05:37,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:05:35" (1/3) ... [2020-10-13 06:05:37,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6309afb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:05:37, skipping insertion in model container [2020-10-13 06:05:37,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:05:36" (2/3) ... [2020-10-13 06:05:37,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6309afb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:05:37, skipping insertion in model container [2020-10-13 06:05:37,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:05:37" (3/3) ... [2020-10-13 06:05:37,486 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label49.c [2020-10-13 06:05:37,497 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:05:37,505 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:05:37,520 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:05:37,546 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:05:37,546 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:05:37,547 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:05:37,547 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:05:37,547 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:05:37,547 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:05:37,548 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:05:37,548 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:05:37,571 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-13 06:05:37,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-13 06:05:37,584 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:37,585 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] [2020-10-13 06:05:37,586 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:37,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:37,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1048845111, now seen corresponding path program 1 times [2020-10-13 06:05:37,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:37,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [906418080] [2020-10-13 06:05:37,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:38,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:38,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:39,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:39,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 06:05:39,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:05:39,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1665 [2020-10-13 06:05:39,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:39,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 06:05:39,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:05:39,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:05:39,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 06:05:40,396 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-10-13 06:05:40,620 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 49 [2020-10-13 06:05:40,897 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 49 [2020-10-13 06:05:41,106 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 45 [2020-10-13 06:05:41,320 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 43 [2020-10-13 06:05:41,538 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 40 [2020-10-13 06:05:41,722 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 35 [2020-10-13 06:05:41,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:41,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:41,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:41,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:41,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:41,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:05:41,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:41,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:41,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:41,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:05:41,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:41,986 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 06:05:41,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [906418080] [2020-10-13 06:05:41,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:05:41,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 06:05:41,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363739713] [2020-10-13 06:05:41,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:05:41,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:42,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:05:42,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:05:42,015 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 12 states. [2020-10-13 06:05:42,444 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-13 06:05:42,639 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 06:05:42,999 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 114 [2020-10-13 06:05:43,353 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 111 [2020-10-13 06:05:43,854 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 108 [2020-10-13 06:05:44,420 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 105 [2020-10-13 06:05:44,789 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 100 [2020-10-13 06:05:45,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:45,696 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-13 06:05:45,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:05:45,700 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 113 [2020-10-13 06:05:45,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:45,728 INFO L225 Difference]: With dead ends: 474 [2020-10-13 06:05:45,728 INFO L226 Difference]: Without dead ends: 205 [2020-10-13 06:05:45,741 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:05:45,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-13 06:05:45,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-13 06:05:45,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 06:05:45,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-13 06:05:45,811 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 113 [2020-10-13 06:05:45,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:45,812 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-13 06:05:45,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:05:45,812 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-13 06:05:45,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-13 06:05:45,817 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:45,817 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] [2020-10-13 06:05:45,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:05:45,818 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:45,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:45,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1462178372, now seen corresponding path program 1 times [2020-10-13 06:05:45,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:45,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [274948124] [2020-10-13 06:05:45,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:45,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:45,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:45,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:46,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:47,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:47,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-13 06:05:47,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:05:47,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1656 [2020-10-13 06:05:47,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:47,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:05:47,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 06:05:47,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:05:47,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:48,248 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-13 06:05:48,481 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 52 [2020-10-13 06:05:48,677 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 49 [2020-10-13 06:05:48,858 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 45 [2020-10-13 06:05:49,063 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 41 [2020-10-13 06:05:49,234 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 35 [2020-10-13 06:05:49,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:49,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:49,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:49,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:49,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:49,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:05:49,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:49,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:49,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:49,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:49,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:05:49,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:49,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:49,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:49,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:49,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:05:49,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:49,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:05:49,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:49,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:49,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:49,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:05:49,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:49,569 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 06:05:49,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [274948124] [2020-10-13 06:05:49,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:49,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:05:49,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336992242] [2020-10-13 06:05:49,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:05:49,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:49,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:05:49,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:05:49,574 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-13 06:05:50,058 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 06:05:50,657 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 114 [2020-10-13 06:05:51,456 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 111 [2020-10-13 06:05:51,843 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 108 [2020-10-13 06:05:52,328 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 105 [2020-10-13 06:05:52,628 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 100 [2020-10-13 06:05:53,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:53,304 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-13 06:05:53,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:05:53,306 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 121 [2020-10-13 06:05:53,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:53,310 INFO L225 Difference]: With dead ends: 433 [2020-10-13 06:05:53,310 INFO L226 Difference]: Without dead ends: 294 [2020-10-13 06:05:53,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-13 06:05:53,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-13 06:05:53,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-13 06:05:53,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 06:05:53,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-13 06:05:53,335 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 121 [2020-10-13 06:05:53,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:53,336 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-13 06:05:53,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:05:53,336 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-13 06:05:53,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-13 06:05:53,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:53,340 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] [2020-10-13 06:05:53,340 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:05:53,341 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:53,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:53,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1125360258, now seen corresponding path program 1 times [2020-10-13 06:05:53,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:53,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1794935248] [2020-10-13 06:05:53,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:53,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:53,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:53,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:53,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:53,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-13 06:05:53,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:05:53,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-10-13 06:05:53,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:53,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:53,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:05:53,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-13 06:05:53,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:53,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:53,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:53,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:53,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:53,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:53,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:05:53,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:53,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:53,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:53,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:53,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:53,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:53,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:53,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:53,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:05:53,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:53,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:05:53,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:53,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:53,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:53,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:05:53,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:54,192 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 06:05:54,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1794935248] [2020-10-13 06:05:54,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:54,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:05:54,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241042501] [2020-10-13 06:05:54,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:05:54,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:54,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:05:54,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:05:54,197 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 5 states. [2020-10-13 06:05:55,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:55,340 INFO L93 Difference]: Finished difference Result 587 states and 809 transitions. [2020-10-13 06:05:55,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:05:55,343 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-10-13 06:05:55,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:55,346 INFO L225 Difference]: With dead ends: 587 [2020-10-13 06:05:55,350 INFO L226 Difference]: Without dead ends: 278 [2020-10-13 06:05:55,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:05:55,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-13 06:05:55,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 276. [2020-10-13 06:05:55,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 06:05:55,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 330 transitions. [2020-10-13 06:05:55,391 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 330 transitions. Word has length 124 [2020-10-13 06:05:55,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:55,391 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 330 transitions. [2020-10-13 06:05:55,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:05:55,391 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 330 transitions. [2020-10-13 06:05:55,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-13 06:05:55,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:55,396 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] [2020-10-13 06:05:55,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:05:55,396 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:55,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:55,397 INFO L82 PathProgramCache]: Analyzing trace with hash 146843642, now seen corresponding path program 1 times [2020-10-13 06:05:55,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:55,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [196537458] [2020-10-13 06:05:55,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:55,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:55,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:55,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:57,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:57,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-13 06:05:57,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:05:57,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2162 [2020-10-13 06:05:57,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:57,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:05:57,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 06:05:57,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:05:57,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:58,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:58,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:58,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:58,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:58,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:58,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:58,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:58,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:58,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:58,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:58,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:58,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:58,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:58,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:58,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:05:58,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:58,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 06:05:58,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:58,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:58,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:58,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 06:05:58,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:58,302 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 06:05:58,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [196537458] [2020-10-13 06:05:58,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:58,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:05:58,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62990072] [2020-10-13 06:05:58,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:05:58,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:58,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:05:58,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:05:58,307 INFO L87 Difference]: Start difference. First operand 276 states and 330 transitions. Second operand 13 states. [2020-10-13 06:05:59,221 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 06:05:59,616 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-13 06:05:59,870 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-13 06:06:00,098 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2020-10-13 06:06:00,422 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2020-10-13 06:06:00,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:00,785 INFO L93 Difference]: Finished difference Result 552 states and 695 transitions. [2020-10-13 06:06:00,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:06:00,787 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 154 [2020-10-13 06:06:00,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:00,796 INFO L225 Difference]: With dead ends: 552 [2020-10-13 06:06:00,796 INFO L226 Difference]: Without dead ends: 325 [2020-10-13 06:06:00,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:06:00,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-10-13 06:06:00,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 319. [2020-10-13 06:06:00,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-10-13 06:06:00,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 378 transitions. [2020-10-13 06:06:00,815 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 378 transitions. Word has length 154 [2020-10-13 06:06:00,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:00,816 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 378 transitions. [2020-10-13 06:06:00,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:00,816 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 378 transitions. [2020-10-13 06:06:00,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-13 06:06:00,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:00,819 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] [2020-10-13 06:06:00,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:06:00,819 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:00,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:00,820 INFO L82 PathProgramCache]: Analyzing trace with hash 964336917, now seen corresponding path program 1 times [2020-10-13 06:06:00,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:00,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [817851875] [2020-10-13 06:06:00,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:00,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:00,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:00,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:01,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:01,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:02,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:05,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:05,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 06:06:05,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:06:05,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4734 [2020-10-13 06:06:05,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:05,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:05,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 06:06:05,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 06:06:05,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:06:06,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:06,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:06,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:06,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:06,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:06,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:06:06,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:06,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:06,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:06,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:06,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 06:06:06,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:06,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:06,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:06,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:06:06,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:06,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:06:06,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:06,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:06,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:06,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:06,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:06:06,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:06:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:06,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:06,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:06,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:06:06,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:06,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-13 06:06:06,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:06,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:06,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:06,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 06:06:06,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:06:06,549 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 06:06:06,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [817851875] [2020-10-13 06:06:06,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:06,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:06:06,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291868012] [2020-10-13 06:06:06,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:06:06,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:06,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:06:06,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:06,554 INFO L87 Difference]: Start difference. First operand 319 states and 378 transitions. Second operand 13 states. [2020-10-13 06:06:07,372 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-13 06:06:07,711 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 06:06:08,095 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 06:06:08,392 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-13 06:06:08,604 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-13 06:06:08,931 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-10-13 06:06:09,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:09,523 INFO L93 Difference]: Finished difference Result 648 states and 810 transitions. [2020-10-13 06:06:09,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:06:09,527 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 171 [2020-10-13 06:06:09,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:09,530 INFO L225 Difference]: With dead ends: 648 [2020-10-13 06:06:09,531 INFO L226 Difference]: Without dead ends: 395 [2020-10-13 06:06:09,532 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:06:09,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-10-13 06:06:09,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 391. [2020-10-13 06:06:09,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2020-10-13 06:06:09,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 456 transitions. [2020-10-13 06:06:09,548 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 456 transitions. Word has length 171 [2020-10-13 06:06:09,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:09,549 INFO L479 AbstractCegarLoop]: Abstraction has 391 states and 456 transitions. [2020-10-13 06:06:09,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:09,549 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 456 transitions. [2020-10-13 06:06:09,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-13 06:06:09,551 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:09,552 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] [2020-10-13 06:06:09,552 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:06:09,552 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:09,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:09,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1486435482, now seen corresponding path program 1 times [2020-10-13 06:06:09,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:09,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187543428] [2020-10-13 06:06:09,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:09,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:09,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:09,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:10,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:11,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:11,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-13 06:06:11,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:06:11,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1777 [2020-10-13 06:06:11,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:11,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:11,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 06:06:11,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 06:06:11,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:11,888 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-13 06:06:12,012 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:06:12,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:12,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:12,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:12,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:12,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:12,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:12,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:06:12,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:12,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:12,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:12,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:12,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:12,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:12,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:12,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:12,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:06:12,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:12,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-13 06:06:12,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:12,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:12,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:12,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 06:06:12,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:12,801 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 06:06:12,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187543428] [2020-10-13 06:06:12,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:12,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:06:12,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415138274] [2020-10-13 06:06:12,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:06:12,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:12,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:06:12,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:06:12,804 INFO L87 Difference]: Start difference. First operand 391 states and 456 transitions. Second operand 14 states. [2020-10-13 06:06:13,664 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2020-10-13 06:06:13,948 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 115 [2020-10-13 06:06:14,388 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 112 [2020-10-13 06:06:14,904 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 109 [2020-10-13 06:06:15,209 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2020-10-13 06:06:15,496 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2020-10-13 06:06:15,813 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 98 [2020-10-13 06:06:16,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:16,462 INFO L93 Difference]: Finished difference Result 787 states and 964 transitions. [2020-10-13 06:06:16,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:06:16,463 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 176 [2020-10-13 06:06:16,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:16,467 INFO L225 Difference]: With dead ends: 787 [2020-10-13 06:06:16,467 INFO L226 Difference]: Without dead ends: 442 [2020-10-13 06:06:16,469 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:06:16,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-10-13 06:06:16,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2020-10-13 06:06:16,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-13 06:06:16,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 508 transitions. [2020-10-13 06:06:16,493 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 508 transitions. Word has length 176 [2020-10-13 06:06:16,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:16,494 INFO L479 AbstractCegarLoop]: Abstraction has 442 states and 508 transitions. [2020-10-13 06:06:16,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:06:16,494 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 508 transitions. [2020-10-13 06:06:16,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-13 06:06:16,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:16,498 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] [2020-10-13 06:06:16,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:06:16,498 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:16,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:16,498 INFO L82 PathProgramCache]: Analyzing trace with hash -666797945, now seen corresponding path program 1 times [2020-10-13 06:06:16,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:16,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57389293] [2020-10-13 06:06:16,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:16,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:16,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:16,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:16,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:18,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:18,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-13 06:06:18,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:06:18,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2251 [2020-10-13 06:06:18,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:18,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:18,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 06:06:18,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:06:18,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:19,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:19,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:19,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:19,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:19,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:19,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:19,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:19,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:19,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:19,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:19,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:19,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:19,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:19,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:19,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:19,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:19,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:06:19,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:19,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:06:19,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:19,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:19,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:19,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:19,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:19,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:06:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:19,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:19,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:19,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:06:19,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:19,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 06:06:19,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:19,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:19,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:19,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 06:06:19,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:19,417 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 06:06:19,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57389293] [2020-10-13 06:06:19,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:19,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:06:19,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059352412] [2020-10-13 06:06:19,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:06:19,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:19,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:06:19,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:19,419 INFO L87 Difference]: Start difference. First operand 442 states and 508 transitions. Second operand 13 states. [2020-10-13 06:06:19,988 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-13 06:06:20,262 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-10-13 06:06:20,582 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2020-10-13 06:06:20,774 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-10-13 06:06:21,079 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2020-10-13 06:06:21,354 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2020-10-13 06:06:21,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:21,761 INFO L93 Difference]: Finished difference Result 880 states and 1055 transitions. [2020-10-13 06:06:21,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:06:21,764 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 187 [2020-10-13 06:06:21,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:21,767 INFO L225 Difference]: With dead ends: 880 [2020-10-13 06:06:21,767 INFO L226 Difference]: Without dead ends: 504 [2020-10-13 06:06:21,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:06:21,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-10-13 06:06:21,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2020-10-13 06:06:21,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2020-10-13 06:06:21,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 576 transitions. [2020-10-13 06:06:21,788 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 576 transitions. Word has length 187 [2020-10-13 06:06:21,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:21,788 INFO L479 AbstractCegarLoop]: Abstraction has 504 states and 576 transitions. [2020-10-13 06:06:21,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:21,788 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 576 transitions. [2020-10-13 06:06:21,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-10-13 06:06:21,791 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:21,792 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] [2020-10-13 06:06:21,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:06:21,792 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:21,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:21,793 INFO L82 PathProgramCache]: Analyzing trace with hash 505483191, now seen corresponding path program 1 times [2020-10-13 06:06:21,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:21,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2055333383] [2020-10-13 06:06:21,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:21,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:21,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:21,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:22,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:24,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:24,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-13 06:06:24,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:06:24,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2314 [2020-10-13 06:06:24,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:24,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:24,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 06:06:24,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:06:24,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:06:24,498 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2020-10-13 06:06:24,708 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 47 [2020-10-13 06:06:24,920 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 44 [2020-10-13 06:06:25,115 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 40 [2020-10-13 06:06:25,273 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 37 [2020-10-13 06:06:25,414 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 33 [2020-10-13 06:06:25,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:25,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:25,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:25,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:25,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:25,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:25,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:25,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:25,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:25,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:25,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:25,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:25,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:25,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:25,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:25,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:06:25,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:25,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:06:25,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:25,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:25,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:25,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:25,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:25,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:06:25,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:25,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:25,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:25,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:06:25,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:25,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 06:06:25,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:25,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:25,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:25,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:06:25,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:25,942 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 06:06:25,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2055333383] [2020-10-13 06:06:25,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:25,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:06:25,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754393955] [2020-10-13 06:06:25,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:06:25,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:25,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:06:25,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:25,946 INFO L87 Difference]: Start difference. First operand 504 states and 576 transitions. Second operand 13 states. [2020-10-13 06:06:26,654 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 06:06:27,058 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 114 [2020-10-13 06:06:27,470 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 111 [2020-10-13 06:06:27,793 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 108 [2020-10-13 06:06:28,110 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 105 [2020-10-13 06:06:28,493 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 100 [2020-10-13 06:06:28,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:28,774 INFO L93 Difference]: Finished difference Result 1002 states and 1186 transitions. [2020-10-13 06:06:28,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:06:28,776 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 190 [2020-10-13 06:06:28,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:28,780 INFO L225 Difference]: With dead ends: 1002 [2020-10-13 06:06:28,780 INFO L226 Difference]: Without dead ends: 547 [2020-10-13 06:06:28,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:06:28,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2020-10-13 06:06:28,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 542. [2020-10-13 06:06:28,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-10-13 06:06:28,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 621 transitions. [2020-10-13 06:06:28,800 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 621 transitions. Word has length 190 [2020-10-13 06:06:28,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:28,801 INFO L479 AbstractCegarLoop]: Abstraction has 542 states and 621 transitions. [2020-10-13 06:06:28,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:28,801 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 621 transitions. [2020-10-13 06:06:28,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-13 06:06:28,804 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:28,804 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] [2020-10-13 06:06:28,804 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:06:28,804 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:28,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:28,805 INFO L82 PathProgramCache]: Analyzing trace with hash 565584915, now seen corresponding path program 1 times [2020-10-13 06:06:28,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:28,805 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [909086376] [2020-10-13 06:06:28,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:28,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:28,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:28,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:29,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:30,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:30,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-10-13 06:06:30,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:06:30,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2085 [2020-10-13 06:06:30,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:30,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:30,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 06:06:30,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:06:30,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:31,289 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:06:31,527 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 39 [2020-10-13 06:06:31,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:31,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:31,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:31,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:31,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:31,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:31,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:31,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:31,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:31,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:31,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:31,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:31,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:31,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:31,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:31,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:06:31,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:31,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:06:31,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:31,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:31,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:31,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:31,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:31,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:06:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:31,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:32,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:32,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 06:06:32,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:32,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 06:06:32,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:32,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:32,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:32,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 06:06:32,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:32,148 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 06:06:32,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [909086376] [2020-10-13 06:06:32,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:32,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:06:32,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885074040] [2020-10-13 06:06:32,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:06:32,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:32,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:06:32,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:32,150 INFO L87 Difference]: Start difference. First operand 542 states and 621 transitions. Second operand 13 states. [2020-10-13 06:06:32,855 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:06:33,259 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:06:33,650 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:06:33,936 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:06:34,210 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:06:34,560 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:06:34,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:34,857 INFO L93 Difference]: Finished difference Result 1080 states and 1278 transitions. [2020-10-13 06:06:34,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:06:34,858 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 193 [2020-10-13 06:06:34,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:34,861 INFO L225 Difference]: With dead ends: 1080 [2020-10-13 06:06:34,861 INFO L226 Difference]: Without dead ends: 587 [2020-10-13 06:06:34,863 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:06:34,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2020-10-13 06:06:34,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 585. [2020-10-13 06:06:34,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-10-13 06:06:34,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 671 transitions. [2020-10-13 06:06:34,884 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 671 transitions. Word has length 193 [2020-10-13 06:06:34,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:34,884 INFO L479 AbstractCegarLoop]: Abstraction has 585 states and 671 transitions. [2020-10-13 06:06:34,884 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:34,885 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 671 transitions. [2020-10-13 06:06:34,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-10-13 06:06:34,888 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:34,888 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] [2020-10-13 06:06:34,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:06:34,888 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:34,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:34,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1124152574, now seen corresponding path program 1 times [2020-10-13 06:06:34,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:34,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1866738696] [2020-10-13 06:06:34,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:34,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:34,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:35,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:35,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:35,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:35,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:37,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:37,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-13 06:06:37,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:06:37,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2338 [2020-10-13 06:06:37,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:37,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:37,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-13 06:06:37,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:06:37,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:37,789 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 41 [2020-10-13 06:06:37,946 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 40 [2020-10-13 06:06:38,102 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 38 [2020-10-13 06:06:38,246 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 36 [2020-10-13 06:06:38,389 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 33 [2020-10-13 06:06:38,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:38,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:38,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:38,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:38,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:38,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:38,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:06:38,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:38,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:38,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:38,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:38,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:38,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:38,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:38,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:38,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:06:38,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:38,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:06:38,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:38,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:38,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:38,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:38,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:38,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:06:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:38,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:38,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:38,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:06:38,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:38,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:06:38,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:38,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:38,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:38,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:38,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:38,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:06:38,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:38,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:38,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:38,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 06:06:38,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:38,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:06:38,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:38,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:38,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:38,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 06:06:38,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:38,672 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 06:06:38,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1866738696] [2020-10-13 06:06:38,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:38,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:06:38,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011606560] [2020-10-13 06:06:38,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:06:38,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:38,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:06:38,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:38,675 INFO L87 Difference]: Start difference. First operand 585 states and 671 transitions. Second operand 13 states. [2020-10-13 06:06:39,220 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-13 06:06:39,537 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-13 06:06:39,876 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2020-10-13 06:06:40,125 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 90 [2020-10-13 06:06:40,475 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89 [2020-10-13 06:06:40,799 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2020-10-13 06:06:41,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:41,020 INFO L93 Difference]: Finished difference Result 1162 states and 1374 transitions. [2020-10-13 06:06:41,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:06:41,022 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 197 [2020-10-13 06:06:41,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:41,026 INFO L225 Difference]: With dead ends: 1162 [2020-10-13 06:06:41,027 INFO L226 Difference]: Without dead ends: 626 [2020-10-13 06:06:41,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:06:41,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2020-10-13 06:06:41,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 585. [2020-10-13 06:06:41,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-10-13 06:06:41,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 671 transitions. [2020-10-13 06:06:41,050 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 671 transitions. Word has length 197 [2020-10-13 06:06:41,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:41,051 INFO L479 AbstractCegarLoop]: Abstraction has 585 states and 671 transitions. [2020-10-13 06:06:41,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:41,051 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 671 transitions. [2020-10-13 06:06:41,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-10-13 06:06:41,055 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:41,055 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] [2020-10-13 06:06:41,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:06:41,055 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:41,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:41,056 INFO L82 PathProgramCache]: Analyzing trace with hash -886223332, now seen corresponding path program 1 times [2020-10-13 06:06:41,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:41,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1601110980] [2020-10-13 06:06:41,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:41,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:41,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:41,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:41,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:41,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:43,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:43,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-13 06:06:43,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:06:43,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2642 [2020-10-13 06:06:43,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:43,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:43,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-13 06:06:43,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:06:43,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:44,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:44,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:44,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:44,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:44,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:44,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:44,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:44,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:44,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:44,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:44,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:44,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:44,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:44,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:44,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:06:44,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:44,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:06:44,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:44,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:44,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:44,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:44,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:44,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:06:44,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:44,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:44,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:44,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:06:44,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:44,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:06:44,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:44,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:44,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:44,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:44,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:44,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:06:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:44,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:44,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:44,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 06:06:44,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:44,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:06:44,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:44,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:44,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:44,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 06:06:44,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:44,339 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 06:06:44,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1601110980] [2020-10-13 06:06:44,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:44,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:06:44,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564365425] [2020-10-13 06:06:44,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:06:44,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:44,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:06:44,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:44,341 INFO L87 Difference]: Start difference. First operand 585 states and 671 transitions. Second operand 13 states. [2020-10-13 06:06:46,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:46,340 INFO L93 Difference]: Finished difference Result 1197 states and 1422 transitions. [2020-10-13 06:06:46,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:06:46,341 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 203 [2020-10-13 06:06:46,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:46,345 INFO L225 Difference]: With dead ends: 1197 [2020-10-13 06:06:46,345 INFO L226 Difference]: Without dead ends: 678 [2020-10-13 06:06:46,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:06:46,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2020-10-13 06:06:46,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 593. [2020-10-13 06:06:46,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-10-13 06:06:46,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 682 transitions. [2020-10-13 06:06:46,367 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 682 transitions. Word has length 203 [2020-10-13 06:06:46,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:46,368 INFO L479 AbstractCegarLoop]: Abstraction has 593 states and 682 transitions. [2020-10-13 06:06:46,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:46,368 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 682 transitions. [2020-10-13 06:06:46,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-13 06:06:46,371 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:46,371 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:06:46,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:06:46,372 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:46,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:46,372 INFO L82 PathProgramCache]: Analyzing trace with hash 507710132, now seen corresponding path program 1 times [2020-10-13 06:06:46,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:46,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1797122527] [2020-10-13 06:06:46,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:46,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:46,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:46,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:46,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:46,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:46,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:48,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:48,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-10-13 06:06:48,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:06:48,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2505 [2020-10-13 06:06:48,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:48,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:48,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-13 06:06:48,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:06:48,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:49,385 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-13 06:06:49,556 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:06:49,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:49,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:49,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:49,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:49,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:49,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:49,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:49,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:49,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:49,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:49,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:50,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:50,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:50,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:50,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:50,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:06:50,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:50,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:06:50,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:50,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:50,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:50,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:50,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:50,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:06:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:50,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:50,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:50,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:06:50,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:50,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:06:50,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:50,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:50,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:50,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:50,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:50,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:06:50,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:50,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:50,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:50,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 06:06:50,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:50,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:06:50,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:50,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:50,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:50,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 06:06:50,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:50,245 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 96 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:06:50,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1797122527] [2020-10-13 06:06:50,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:50,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:06:50,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351082000] [2020-10-13 06:06:50,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:06:50,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:50,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:06:50,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:50,248 INFO L87 Difference]: Start difference. First operand 593 states and 682 transitions. Second operand 13 states. [2020-10-13 06:06:50,544 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-13 06:06:50,705 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 06:06:51,050 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 06:06:51,339 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 06:06:51,505 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-13 06:06:51,852 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 06:06:52,096 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-13 06:06:52,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:52,344 INFO L93 Difference]: Finished difference Result 1183 states and 1405 transitions. [2020-10-13 06:06:52,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 06:06:52,345 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 215 [2020-10-13 06:06:52,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:52,349 INFO L225 Difference]: With dead ends: 1183 [2020-10-13 06:06:52,349 INFO L226 Difference]: Without dead ends: 639 [2020-10-13 06:06:52,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:06:52,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2020-10-13 06:06:52,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 593. [2020-10-13 06:06:52,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-10-13 06:06:52,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 681 transitions. [2020-10-13 06:06:52,372 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 681 transitions. Word has length 215 [2020-10-13 06:06:52,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:52,373 INFO L479 AbstractCegarLoop]: Abstraction has 593 states and 681 transitions. [2020-10-13 06:06:52,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:52,373 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 681 transitions. [2020-10-13 06:06:52,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-10-13 06:06:52,375 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:52,376 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] [2020-10-13 06:06:52,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:06:52,376 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:52,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:52,376 INFO L82 PathProgramCache]: Analyzing trace with hash -700700609, now seen corresponding path program 1 times [2020-10-13 06:06:52,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:52,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [951328465] [2020-10-13 06:06:52,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:52,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:52,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:52,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:52,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:54,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:54,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-10-13 06:06:54,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:06:54,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1765 [2020-10-13 06:06:54,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:54,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:54,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-13 06:06:54,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:06:54,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:54,563 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-10-13 06:06:54,811 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 38 [2020-10-13 06:06:54,951 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 36 [2020-10-13 06:06:55,102 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 34 [2020-10-13 06:06:55,234 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 33 [2020-10-13 06:06:55,373 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 30 [2020-10-13 06:06:55,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:55,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:55,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:55,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:55,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:55,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:55,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:55,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:55,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:55,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:55,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:55,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:55,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:55,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:55,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:06:55,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:55,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:06:55,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:55,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:55,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:55,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:55,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:55,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:06:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:55,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:55,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:55,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:06:55,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:55,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 06:06:55,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:55,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:55,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:55,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:06:55,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:55,662 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 06:06:55,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [951328465] [2020-10-13 06:06:55,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:55,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:06:55,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793794121] [2020-10-13 06:06:55,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:06:55,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:55,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:06:55,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:55,664 INFO L87 Difference]: Start difference. First operand 593 states and 681 transitions. Second operand 13 states. [2020-10-13 06:06:56,409 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-13 06:06:56,666 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 91 [2020-10-13 06:06:56,936 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2020-10-13 06:06:57,463 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2020-10-13 06:06:57,743 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 88 [2020-10-13 06:06:58,016 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 86 [2020-10-13 06:06:58,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:58,392 INFO L93 Difference]: Finished difference Result 1184 states and 1408 transitions. [2020-10-13 06:06:58,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:06:58,393 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 227 [2020-10-13 06:06:58,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:58,397 INFO L225 Difference]: With dead ends: 1184 [2020-10-13 06:06:58,397 INFO L226 Difference]: Without dead ends: 610 [2020-10-13 06:06:58,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:06:58,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2020-10-13 06:06:58,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 608. [2020-10-13 06:06:58,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2020-10-13 06:06:58,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 697 transitions. [2020-10-13 06:06:58,418 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 697 transitions. Word has length 227 [2020-10-13 06:06:58,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:58,419 INFO L479 AbstractCegarLoop]: Abstraction has 608 states and 697 transitions. [2020-10-13 06:06:58,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:58,419 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 697 transitions. [2020-10-13 06:06:58,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-10-13 06:06:58,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:58,422 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] [2020-10-13 06:06:58,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:06:58,422 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:58,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:58,423 INFO L82 PathProgramCache]: Analyzing trace with hash -273364674, now seen corresponding path program 1 times [2020-10-13 06:06:58,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:58,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [707225113] [2020-10-13 06:06:58,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:58,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:58,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:58,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:59,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:59,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:59,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-10-13 06:06:59,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:06:59,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1169 [2020-10-13 06:06:59,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:59,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:59,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-13 06:06:59,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:06:59,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:59,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:59,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:59,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:59,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:59,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:59,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:59,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:59,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:59,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:59,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:59,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:59,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:59,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:59,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:59,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:59,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:06:59,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:59,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:06:59,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:59,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:59,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:59,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:59,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:59,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:06:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:59,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:59,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:59,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:06:59,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:59,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:06:59,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:59,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:59,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:59,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:59,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:59,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:06:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:59,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:59,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:59,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 06:06:59,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:59,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 06:06:59,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:59,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:59,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:59,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 06:06:59,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:59,977 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 06:06:59,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [707225113] [2020-10-13 06:06:59,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:59,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:06:59,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66567632] [2020-10-13 06:06:59,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:06:59,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:59,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:06:59,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:06:59,979 INFO L87 Difference]: Start difference. First operand 608 states and 697 transitions. Second operand 5 states. [2020-10-13 06:07:00,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:00,967 INFO L93 Difference]: Finished difference Result 1236 states and 1473 transitions. [2020-10-13 06:07:00,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:00,968 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 229 [2020-10-13 06:07:00,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:00,971 INFO L225 Difference]: With dead ends: 1236 [2020-10-13 06:07:00,971 INFO L226 Difference]: Without dead ends: 271 [2020-10-13 06:07:00,973 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 06:07:00,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-13 06:07:00,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2020-10-13 06:07:00,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-10-13 06:07:00,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 302 transitions. [2020-10-13 06:07:00,981 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 302 transitions. Word has length 229 [2020-10-13 06:07:00,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:00,982 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 302 transitions. [2020-10-13 06:07:00,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:07:00,982 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 302 transitions. [2020-10-13 06:07:00,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-10-13 06:07:00,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:00,984 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] [2020-10-13 06:07:00,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:07:00,984 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:00,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:00,984 INFO L82 PathProgramCache]: Analyzing trace with hash -293441734, now seen corresponding path program 1 times [2020-10-13 06:07:00,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:00,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1493505973] [2020-10-13 06:07:00,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:01,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:01,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:01,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:01,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:01,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:01,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:02,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:04,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:04,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-10-13 06:07:04,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:07:04,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3933 [2020-10-13 06:07:04,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:04,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:04,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-10-13 06:07:04,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:07:04,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:05,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:05,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:05,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:05,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:05,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:05,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:05,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:05,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:05,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:05,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:05,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:05,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:05,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:05,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:05,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:05,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:05,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:07:05,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:05,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:05,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:05,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:05,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:05,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:05,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:05,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:05,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:05,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:05,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:05,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:07:05,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:05,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:05,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:05,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:05,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:05,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:05,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:05,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:05,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:05,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:05,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:07:05,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:05,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:05,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:05,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:07:05,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:05,745 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 06:07:05,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1493505973] [2020-10-13 06:07:05,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:05,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:05,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275532616] [2020-10-13 06:07:05,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:05,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:05,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:05,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:05,747 INFO L87 Difference]: Start difference. First operand 271 states and 302 transitions. Second operand 13 states. [2020-10-13 06:07:06,496 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 06:07:06,730 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 06:07:06,950 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-13 06:07:07,319 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-13 06:07:07,640 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-10-13 06:07:08,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:08,076 INFO L93 Difference]: Finished difference Result 551 states and 646 transitions. [2020-10-13 06:07:08,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:07:08,077 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 240 [2020-10-13 06:07:08,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:08,079 INFO L225 Difference]: With dead ends: 551 [2020-10-13 06:07:08,080 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:07:08,081 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:07:08,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:07:08,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:07:08,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:07:08,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 383 transitions. [2020-10-13 06:07:08,091 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 383 transitions. Word has length 240 [2020-10-13 06:07:08,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:08,092 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 383 transitions. [2020-10-13 06:07:08,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:08,092 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 383 transitions. [2020-10-13 06:07:08,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-10-13 06:07:08,094 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:08,094 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] [2020-10-13 06:07:08,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:07:08,094 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:08,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:08,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1629087431, now seen corresponding path program 1 times [2020-10-13 06:07:08,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:08,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1265802896] [2020-10-13 06:07:08,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:08,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:08,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:08,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:08,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:08,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-10-13 06:07:08,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:07:08,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-10-13 06:07:08,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-13 06:07:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:07:08,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:08,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:08,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:08,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:08,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:08,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:08,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:08,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:08,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:08,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:08,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:08,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:08,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:08,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:08,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:08,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:08,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:08,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:07:08,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:08,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:08,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:08,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:08,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:08,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:08,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:08,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:08,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:08,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:08,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:08,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:07:08,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:08,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:08,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:08,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:08,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:08,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:08,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:08,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:08,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:08,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:08,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:08,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:07:08,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:08,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:08,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:08,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:08,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:08,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:08,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:08,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:08,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 06:07:08,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:08,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:07:08,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:08,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:08,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:08,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 06:07:08,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:09,046 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 06:07:09,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1265802896] [2020-10-13 06:07:09,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:09,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:07:09,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158428799] [2020-10-13 06:07:09,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:07:09,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:09,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:07:09,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:07:09,048 INFO L87 Difference]: Start difference. First operand 346 states and 383 transitions. Second operand 5 states. [2020-10-13 06:07:09,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:09,968 INFO L93 Difference]: Finished difference Result 708 states and 817 transitions. [2020-10-13 06:07:09,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:09,969 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 252 [2020-10-13 06:07:09,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:09,972 INFO L225 Difference]: With dead ends: 708 [2020-10-13 06:07:09,972 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:07:09,973 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 06:07:09,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:07:09,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:07:09,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:07:09,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 381 transitions. [2020-10-13 06:07:09,984 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 381 transitions. Word has length 252 [2020-10-13 06:07:09,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:09,985 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 381 transitions. [2020-10-13 06:07:09,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:07:09,985 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 381 transitions. [2020-10-13 06:07:09,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-10-13 06:07:09,987 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:09,987 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] [2020-10-13 06:07:09,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:07:09,988 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:09,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:09,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1800444253, now seen corresponding path program 1 times [2020-10-13 06:07:09,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:09,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1062231963] [2020-10-13 06:07:09,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:10,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:10,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:11,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:11,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-10-13 06:07:11,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:07:11,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1348 [2020-10-13 06:07:11,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:11,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:11,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-13 06:07:11,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 06:07:11,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:11,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:11,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:11,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:11,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:11,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:11,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:11,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:11,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:11,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:11,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:11,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:11,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:11,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:11,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:11,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:11,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:11,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:07:11,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:11,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:11,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:11,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:11,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:11,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:11,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:11,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:11,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:11,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:11,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:11,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:11,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:11,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:11,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:11,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:11,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:11,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:11,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:11,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:11,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:11,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:11,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:11,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:11,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:11,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:11,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:11,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:11,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:11,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:11,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:11,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:11,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:07:11,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:11,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:11,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:11,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:11,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:11,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:07:11,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:12,022 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 06:07:12,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1062231963] [2020-10-13 06:07:12,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:12,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:12,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711754488] [2020-10-13 06:07:12,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:12,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:12,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:12,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:12,024 INFO L87 Difference]: Start difference. First operand 346 states and 381 transitions. Second operand 13 states. [2020-10-13 06:07:12,987 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-13 06:07:13,272 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2020-10-13 06:07:13,581 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2020-10-13 06:07:13,840 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 86 [2020-10-13 06:07:14,212 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2020-10-13 06:07:14,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:14,581 INFO L93 Difference]: Finished difference Result 698 states and 802 transitions. [2020-10-13 06:07:14,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:07:14,584 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 255 [2020-10-13 06:07:14,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:14,587 INFO L225 Difference]: With dead ends: 698 [2020-10-13 06:07:14,587 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:07:14,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:07:14,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:07:14,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:07:14,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:07:14,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 460 transitions. [2020-10-13 06:07:14,599 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 460 transitions. Word has length 255 [2020-10-13 06:07:14,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:14,599 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 460 transitions. [2020-10-13 06:07:14,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:14,600 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 460 transitions. [2020-10-13 06:07:14,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-10-13 06:07:14,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:14,602 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] [2020-10-13 06:07:14,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:07:14,602 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:14,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:14,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1418664665, now seen corresponding path program 1 times [2020-10-13 06:07:14,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:14,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2071621] [2020-10-13 06:07:14,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:14,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:14,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:14,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:14,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 273 [2020-10-13 06:07:14,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:07:14,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-10-13 06:07:14,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:14,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:14,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-10-13 06:07:14,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:07:14,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:15,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:15,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:15,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:15,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:15,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:15,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:15,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:15,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:15,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:15,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:15,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:15,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:15,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:15,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:15,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:15,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:15,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:15,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:07:15,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:15,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:15,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:15,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:15,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:15,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:15,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:15,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:15,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:15,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:15,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:15,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:15,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:15,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:15,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:15,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:15,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:15,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:15,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:15,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:15,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:15,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:15,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:15,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:15,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:15,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:15,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:15,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:15,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:15,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:15,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:07:15,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:15,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:07:15,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:15,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:15,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:15,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:07:15,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:15,361 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 06:07:15,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2071621] [2020-10-13 06:07:15,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:15,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:07:15,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642065062] [2020-10-13 06:07:15,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:07:15,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:15,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:07:15,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:07:15,363 INFO L87 Difference]: Start difference. First operand 418 states and 460 transitions. Second operand 6 states. [2020-10-13 06:07:16,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:16,251 INFO L93 Difference]: Finished difference Result 851 states and 970 transitions. [2020-10-13 06:07:16,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:16,252 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 257 [2020-10-13 06:07:16,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:16,255 INFO L225 Difference]: With dead ends: 851 [2020-10-13 06:07:16,255 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:07:16,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:07:16,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:07:16,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:07:16,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:07:16,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 458 transitions. [2020-10-13 06:07:16,269 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 458 transitions. Word has length 257 [2020-10-13 06:07:16,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:16,269 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 458 transitions. [2020-10-13 06:07:16,269 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:07:16,270 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 458 transitions. [2020-10-13 06:07:16,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2020-10-13 06:07:16,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:16,272 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] [2020-10-13 06:07:16,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:07:16,273 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:16,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:16,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1988394944, now seen corresponding path program 1 times [2020-10-13 06:07:16,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:16,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1603822325] [2020-10-13 06:07:16,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:16,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:16,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:16,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:17,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:17,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 293 [2020-10-13 06:07:17,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:07:17,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1021 [2020-10-13 06:07:17,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:17,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:17,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 06:07:17,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:07:17,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:17,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:17,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:17,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:17,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:17,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:17,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:17,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:17,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:17,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:17,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:17,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:17,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:17,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:17,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:17,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:17,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:17,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:07:17,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:17,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:17,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:17,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:17,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:17,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:17,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:17,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:17,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:17,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:17,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:17,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:17,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:17,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:17,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:17,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:17,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:17,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:17,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:17,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:17,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:17,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:17,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:17,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:17,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:17,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:17,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:17,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:17,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:17,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:17,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:17,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:17,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:07:17,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:17,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:07:17,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:17,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:17,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:17,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:17,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:17,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:07:17,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:17,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:17,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:17,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:07:17,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:17,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:07:17,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:17,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:17,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:17,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:07:17,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:17,729 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 06:07:17,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1603822325] [2020-10-13 06:07:17,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:17,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:07:17,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050660344] [2020-10-13 06:07:17,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:07:17,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:17,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:07:17,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:07:17,731 INFO L87 Difference]: Start difference. First operand 418 states and 458 transitions. Second operand 6 states. [2020-10-13 06:07:18,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:18,576 INFO L93 Difference]: Finished difference Result 849 states and 963 transitions. [2020-10-13 06:07:18,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:18,577 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 275 [2020-10-13 06:07:18,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:18,580 INFO L225 Difference]: With dead ends: 849 [2020-10-13 06:07:18,580 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:07:18,582 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 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 06:07:18,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:07:18,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:07:18,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:07:18,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 456 transitions. [2020-10-13 06:07:18,593 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 456 transitions. Word has length 275 [2020-10-13 06:07:18,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:18,594 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 456 transitions. [2020-10-13 06:07:18,594 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:07:18,594 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 456 transitions. [2020-10-13 06:07:18,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-10-13 06:07:18,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:18,596 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] [2020-10-13 06:07:18,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 06:07:18,596 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:18,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:18,597 INFO L82 PathProgramCache]: Analyzing trace with hash -870505741, now seen corresponding path program 1 times [2020-10-13 06:07:18,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:18,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1751803678] [2020-10-13 06:07:18,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:18,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:18,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:19,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:19,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 290 [2020-10-13 06:07:19,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:07:19,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 548 [2020-10-13 06:07:19,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:19,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:19,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 06:07:19,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:07:19,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:19,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:19,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:19,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:19,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:19,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:19,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:19,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:19,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:19,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:19,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:19,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:19,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:19,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:19,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:19,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:19,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:19,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:07:19,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:19,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:19,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:19,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:19,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:19,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:19,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:19,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:19,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:19,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:19,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:19,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:19,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:19,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:19,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:19,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:19,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:19,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:19,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:19,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:19,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:19,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:19,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:19,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:19,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:19,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:19,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:19,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:19,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:19,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:19,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:19,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:07:19,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:19,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:07:19,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:19,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:19,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:19,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:07:19,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:19,568 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 06:07:19,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1751803678] [2020-10-13 06:07:19,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:19,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:07:19,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602924518] [2020-10-13 06:07:19,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:07:19,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:19,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:07:19,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:07:19,570 INFO L87 Difference]: Start difference. First operand 418 states and 456 transitions. Second operand 5 states. [2020-10-13 06:07:20,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:20,407 INFO L93 Difference]: Finished difference Result 853 states and 962 transitions. [2020-10-13 06:07:20,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:20,407 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 274 [2020-10-13 06:07:20,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:20,410 INFO L225 Difference]: With dead ends: 853 [2020-10-13 06:07:20,410 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:07:20,411 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 06:07:20,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:07:20,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:07:20,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:07:20,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 454 transitions. [2020-10-13 06:07:20,423 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 454 transitions. Word has length 274 [2020-10-13 06:07:20,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:20,424 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 454 transitions. [2020-10-13 06:07:20,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:07:20,424 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 454 transitions. [2020-10-13 06:07:20,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-10-13 06:07:20,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:20,426 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] [2020-10-13 06:07:20,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 06:07:20,427 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:20,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:20,427 INFO L82 PathProgramCache]: Analyzing trace with hash 614013302, now seen corresponding path program 1 times [2020-10-13 06:07:20,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:20,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1242383112] [2020-10-13 06:07:20,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:20,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:20,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:21,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:21,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:21,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-13 06:07:21,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:07:21,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1360 [2020-10-13 06:07:21,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:21,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:21,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-13 06:07:21,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:07:21,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:22,244 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-13 06:07:22,374 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:07:22,502 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2020-10-13 06:07:22,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:22,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:22,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:22,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:22,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:22,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:22,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:22,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:22,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:22,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:22,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:22,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:22,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:22,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:22,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:22,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:22,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:22,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:22,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:07:22,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:22,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:22,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:22,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:22,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:22,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:22,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:22,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:22,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:22,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:22,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:07:22,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:22,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:22,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:22,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:22,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:22,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:22,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:22,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:22,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:22,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:22,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:22,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:22,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:22,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:22,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:22,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:22,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:22,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:22,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:22,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:22,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:07:22,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:22,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:22,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:22,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:22,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:22,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:22,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:22,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:07:22,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:22,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:22,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:22,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:07:22,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:22,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:07:22,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:22,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:22,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:22,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 06:07:22,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:23,168 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 06:07:23,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1242383112] [2020-10-13 06:07:23,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:23,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:07:23,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548832480] [2020-10-13 06:07:23,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:07:23,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:23,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:07:23,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:07:23,170 INFO L87 Difference]: Start difference. First operand 418 states and 454 transitions. Second operand 14 states. [2020-10-13 06:07:23,822 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2020-10-13 06:07:24,126 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 115 [2020-10-13 06:07:24,432 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 112 [2020-10-13 06:07:24,852 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 109 [2020-10-13 06:07:25,175 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2020-10-13 06:07:25,559 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2020-10-13 06:07:25,924 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 98 [2020-10-13 06:07:26,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:26,182 INFO L93 Difference]: Finished difference Result 835 states and 937 transitions. [2020-10-13 06:07:26,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:07:26,183 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 284 [2020-10-13 06:07:26,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:26,185 INFO L225 Difference]: With dead ends: 835 [2020-10-13 06:07:26,185 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:07:26,187 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:07:26,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:07:26,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:07:26,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:07:26,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 529 transitions. [2020-10-13 06:07:26,198 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 529 transitions. Word has length 284 [2020-10-13 06:07:26,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:26,198 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 529 transitions. [2020-10-13 06:07:26,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:07:26,198 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 529 transitions. [2020-10-13 06:07:26,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2020-10-13 06:07:26,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:26,202 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] [2020-10-13 06:07:26,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 06:07:26,202 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:26,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:26,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1709352337, now seen corresponding path program 1 times [2020-10-13 06:07:26,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:26,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [623753039] [2020-10-13 06:07:26,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:26,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:26,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:26,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:26,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 309 [2020-10-13 06:07:26,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:07:26,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 653 [2020-10-13 06:07:26,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:26,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:26,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-13 06:07:26,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 06:07:26,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:27,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:27,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:27,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:27,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:27,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:27,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:07:27,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:27,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:27,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:27,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:27,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:27,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:27,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:27,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:27,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:27,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:27,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:07:27,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:27,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:27,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:27,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:27,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:27,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:27,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:27,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:27,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:27,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:27,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:07:27,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:27,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:27,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:27,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:27,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:27,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:27,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:27,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:27,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:27,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:27,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:27,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:27,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:27,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:27,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:27,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:27,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:27,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:27,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:27,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:27,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:27,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 06:07:27,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:27,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:07:27,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:27,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:27,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:27,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 06:07:27,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:27,272 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 06:07:27,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [623753039] [2020-10-13 06:07:27,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:27,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:07:27,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395650397] [2020-10-13 06:07:27,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:07:27,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:27,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:07:27,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:07:27,274 INFO L87 Difference]: Start difference. First operand 483 states and 529 transitions. Second operand 5 states. [2020-10-13 06:07:28,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:28,068 INFO L93 Difference]: Finished difference Result 984 states and 1109 transitions. [2020-10-13 06:07:28,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:28,076 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 293 [2020-10-13 06:07:28,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:28,078 INFO L225 Difference]: With dead ends: 984 [2020-10-13 06:07:28,078 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:07:28,079 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 06:07:28,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:07:28,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:07:28,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:07:28,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 527 transitions. [2020-10-13 06:07:28,093 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 527 transitions. Word has length 293 [2020-10-13 06:07:28,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:28,094 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 527 transitions. [2020-10-13 06:07:28,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:07:28,094 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 527 transitions. [2020-10-13 06:07:28,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-10-13 06:07:28,096 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:28,096 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] [2020-10-13 06:07:28,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 06:07:28,097 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:28,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:28,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1053868754, now seen corresponding path program 1 times [2020-10-13 06:07:28,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:28,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336500919] [2020-10-13 06:07:28,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:28,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:28,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:28,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:28,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 316 [2020-10-13 06:07:28,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:07:28,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 375 [2020-10-13 06:07:28,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:28,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:28,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-13 06:07:28,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 06:07:28,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:28,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:28,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:28,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:28,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:28,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:28,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:28,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:28,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:28,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:28,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:28,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:28,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:28,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:28,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:28,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:28,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:28,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:28,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:28,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:07:28,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:28,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:28,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:28,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:28,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:28,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:28,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:28,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:28,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:28,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:28,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:28,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:28,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:28,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:28,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:28,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:28,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:28,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:28,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:28,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:28,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:28,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:28,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:28,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:28,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:28,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:28,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:28,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:28,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:28,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:28,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:28,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:07:28,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:28,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:28,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:28,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:28,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:28,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:28,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:28,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:07:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:28,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:28,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:28,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 06:07:28,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:28,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:07:28,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:28,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:28,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:28,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 06:07:28,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:28,948 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 06:07:28,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [336500919] [2020-10-13 06:07:28,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:28,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:07:28,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115071298] [2020-10-13 06:07:28,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:07:28,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:28,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:07:28,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:07:28,950 INFO L87 Difference]: Start difference. First operand 483 states and 527 transitions. Second operand 5 states. [2020-10-13 06:07:29,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:29,755 INFO L93 Difference]: Finished difference Result 978 states and 1098 transitions. [2020-10-13 06:07:29,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:29,756 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 298 [2020-10-13 06:07:29,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:29,759 INFO L225 Difference]: With dead ends: 978 [2020-10-13 06:07:29,759 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:07:29,760 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 06:07:29,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:07:29,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:07:29,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:07:29,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 525 transitions. [2020-10-13 06:07:29,772 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 525 transitions. Word has length 298 [2020-10-13 06:07:29,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:29,773 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 525 transitions. [2020-10-13 06:07:29,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:07:29,773 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 525 transitions. [2020-10-13 06:07:29,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-10-13 06:07:29,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:29,775 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] [2020-10-13 06:07:29,776 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 06:07:29,776 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:29,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:29,776 INFO L82 PathProgramCache]: Analyzing trace with hash 2146916638, now seen corresponding path program 1 times [2020-10-13 06:07:29,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:29,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [310662534] [2020-10-13 06:07:29,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:29,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:30,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:30,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:31,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:31,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 322 [2020-10-13 06:07:31,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:07:31,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1646 [2020-10-13 06:07:31,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:31,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:31,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 209 [2020-10-13 06:07:31,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:07:31,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:32,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:32,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:32,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:32,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:32,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:32,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:32,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:32,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:32,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:32,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:32,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:32,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:32,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:32,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:32,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:32,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:32,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:07:32,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:32,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:32,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:32,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:32,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:32,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:32,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:32,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:32,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:32,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:32,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:32,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:32,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:32,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:32,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:32,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:32,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:32,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:32,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:32,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:32,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:32,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:32,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:32,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:32,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:32,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:32,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:32,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:32,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:32,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:32,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:32,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:07:32,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:32,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:32,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:32,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:32,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:32,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:32,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:32,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:07:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:32,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:32,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:32,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:07:32,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:32,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:07:32,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:32,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:32,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:32,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 06:07:32,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:32,361 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 06:07:32,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [310662534] [2020-10-13 06:07:32,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:32,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:32,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383851539] [2020-10-13 06:07:32,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:32,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:32,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:32,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:32,362 INFO L87 Difference]: Start difference. First operand 483 states and 525 transitions. Second operand 13 states. [2020-10-13 06:07:33,326 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:07:33,563 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:07:33,821 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:07:34,025 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:07:34,360 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:07:34,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:34,757 INFO L93 Difference]: Finished difference Result 962 states and 1072 transitions. [2020-10-13 06:07:34,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:07:34,758 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 304 [2020-10-13 06:07:34,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:34,761 INFO L225 Difference]: With dead ends: 962 [2020-10-13 06:07:34,761 INFO L226 Difference]: Without dead ends: 545 [2020-10-13 06:07:34,762 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:07:34,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2020-10-13 06:07:34,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 539. [2020-10-13 06:07:34,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:07:34,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 589 transitions. [2020-10-13 06:07:34,775 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 589 transitions. Word has length 304 [2020-10-13 06:07:34,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:34,775 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 589 transitions. [2020-10-13 06:07:34,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:34,776 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 589 transitions. [2020-10-13 06:07:34,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-10-13 06:07:34,778 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:34,778 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] [2020-10-13 06:07:34,779 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 06:07:34,779 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:34,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:34,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1102983045, now seen corresponding path program 1 times [2020-10-13 06:07:34,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:34,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1501358869] [2020-10-13 06:07:34,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:34,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:34,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:35,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:35,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:35,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:36,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:36,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 329 [2020-10-13 06:07:36,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:07:36,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2003 [2020-10-13 06:07:36,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:36,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:36,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:07:36,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 06:07:36,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:36,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:36,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:36,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:36,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:36,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:36,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:36,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:36,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:36,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:36,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:36,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:36,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:36,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:36,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:36,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:36,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:36,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:36,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:07:36,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:36,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:36,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:36,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:36,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:37,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:37,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:37,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:37,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:37,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:37,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:37,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:37,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:37,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:37,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:37,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:37,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:37,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:37,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:37,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:37,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:37,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:37,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:37,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:37,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:37,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:37,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:37,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:37,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:37,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:37,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:37,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:07:37,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:37,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:37,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:37,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:37,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:37,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:37,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:37,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:07:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:37,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:37,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:37,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:07:37,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:37,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:07:37,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:37,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:37,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:37,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:37,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:37,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:07:37,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:37,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:37,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:37,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 06:07:37,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:37,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:07:37,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:37,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:37,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:37,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:07:37,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:37,217 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 06:07:37,217 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1501358869] [2020-10-13 06:07:37,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:37,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:07:37,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625080835] [2020-10-13 06:07:37,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:07:37,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:37,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:07:37,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:07:37,219 INFO L87 Difference]: Start difference. First operand 539 states and 589 transitions. Second operand 5 states. [2020-10-13 06:07:38,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:38,069 INFO L93 Difference]: Finished difference Result 1088 states and 1221 transitions. [2020-10-13 06:07:38,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:38,072 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 309 [2020-10-13 06:07:38,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:38,075 INFO L225 Difference]: With dead ends: 1088 [2020-10-13 06:07:38,075 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:07:38,076 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 06:07:38,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:07:38,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2020-10-13 06:07:38,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:07:38,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 587 transitions. [2020-10-13 06:07:38,087 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 587 transitions. Word has length 309 [2020-10-13 06:07:38,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:38,088 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 587 transitions. [2020-10-13 06:07:38,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:07:38,088 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 587 transitions. [2020-10-13 06:07:38,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2020-10-13 06:07:38,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:38,091 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] [2020-10-13 06:07:38,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 06:07:38,091 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:38,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:38,091 INFO L82 PathProgramCache]: Analyzing trace with hash 637131671, now seen corresponding path program 1 times [2020-10-13 06:07:38,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:38,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1576700698] [2020-10-13 06:07:38,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:38,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:38,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:38,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:38,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:38,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 329 [2020-10-13 06:07:38,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:07:38,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-10-13 06:07:38,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:38,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:38,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:07:38,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-13 06:07:38,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:38,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:38,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:38,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:38,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:38,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:38,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:38,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:38,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:38,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:38,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:38,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:38,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:38,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:38,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:38,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:38,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:38,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:07:38,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:38,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:38,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:38,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:38,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:38,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:38,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:38,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:38,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:38,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:38,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:38,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:38,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:38,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:38,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:38,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:38,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:38,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:38,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:38,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:38,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:38,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:38,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:38,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:38,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:38,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:38,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:38,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:38,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:38,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:38,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 06:07:38,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:38,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 06:07:38,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:38,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:38,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:38,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:07:38,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:38,935 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 06:07:38,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1576700698] [2020-10-13 06:07:38,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:38,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:07:38,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234921335] [2020-10-13 06:07:38,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:07:38,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:38,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:07:38,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:07:38,937 INFO L87 Difference]: Start difference. First operand 539 states and 587 transitions. Second operand 5 states. [2020-10-13 06:07:39,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:39,788 INFO L93 Difference]: Finished difference Result 1097 states and 1224 transitions. [2020-10-13 06:07:39,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:39,796 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 313 [2020-10-13 06:07:39,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:39,798 INFO L225 Difference]: With dead ends: 1097 [2020-10-13 06:07:39,799 INFO L226 Difference]: Without dead ends: 481 [2020-10-13 06:07:39,800 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 06:07:39,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-10-13 06:07:39,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2020-10-13 06:07:39,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-10-13 06:07:39,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 526 transitions. [2020-10-13 06:07:39,811 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 526 transitions. Word has length 313 [2020-10-13 06:07:39,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:39,811 INFO L479 AbstractCegarLoop]: Abstraction has 481 states and 526 transitions. [2020-10-13 06:07:39,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:07:39,811 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 526 transitions. [2020-10-13 06:07:39,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2020-10-13 06:07:39,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:39,814 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] [2020-10-13 06:07:39,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 06:07:39,815 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:39,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:39,815 INFO L82 PathProgramCache]: Analyzing trace with hash 392133559, now seen corresponding path program 1 times [2020-10-13 06:07:39,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:39,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2049414588] [2020-10-13 06:07:39,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:39,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:39,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:40,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:40,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:41,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:41,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 342 [2020-10-13 06:07:41,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:07:41,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1968 [2020-10-13 06:07:41,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:41,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:41,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-13 06:07:41,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:07:41,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:42,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:42,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:42,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:42,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:42,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:42,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:42,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:42,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:42,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:42,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:42,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:42,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:42,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:42,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:42,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:42,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:42,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:42,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:07:42,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:42,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:42,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:42,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:42,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:42,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:42,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:42,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:42,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:42,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:42,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:42,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:42,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:42,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:42,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:42,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:42,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:42,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:42,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:42,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:42,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:42,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:42,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:42,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:42,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:42,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:42,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:42,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:42,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:42,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:42,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:42,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:42,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:07:42,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:42,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:42,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:42,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:42,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:42,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:42,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:42,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:07:42,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:42,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:42,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:42,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:07:42,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:42,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:42,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:42,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:42,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:42,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:42,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:42,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:07:42,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:42,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:42,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:42,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 06:07:42,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:42,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 06:07:42,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:42,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:42,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:42,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 06:07:42,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:42,577 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 06:07:42,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2049414588] [2020-10-13 06:07:42,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:42,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:42,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314899649] [2020-10-13 06:07:42,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:42,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:42,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:42,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:42,579 INFO L87 Difference]: Start difference. First operand 481 states and 526 transitions. Second operand 13 states. [2020-10-13 06:07:43,653 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-13 06:07:44,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:44,133 INFO L93 Difference]: Finished difference Result 969 states and 1090 transitions. [2020-10-13 06:07:44,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:07:44,134 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 322 [2020-10-13 06:07:44,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:44,137 INFO L225 Difference]: With dead ends: 969 [2020-10-13 06:07:44,137 INFO L226 Difference]: Without dead ends: 496 [2020-10-13 06:07:44,138 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 06:07:44,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-10-13 06:07:44,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 483. [2020-10-13 06:07:44,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:07:44,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 529 transitions. [2020-10-13 06:07:44,149 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 529 transitions. Word has length 322 [2020-10-13 06:07:44,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:44,149 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 529 transitions. [2020-10-13 06:07:44,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:44,149 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 529 transitions. [2020-10-13 06:07:44,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-10-13 06:07:44,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:44,152 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] [2020-10-13 06:07:44,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 06:07:44,152 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:44,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:44,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1752066076, now seen corresponding path program 1 times [2020-10-13 06:07:44,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:44,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2059457323] [2020-10-13 06:07:44,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:44,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:44,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:44,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:45,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:45,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 343 [2020-10-13 06:07:45,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:07:45,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 953 [2020-10-13 06:07:45,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:45,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:45,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-10-13 06:07:45,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:07:45,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:45,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:45,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:45,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:45,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:45,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:45,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:07:45,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:45,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:45,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:45,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:45,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:45,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:45,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:45,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:45,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:45,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:45,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:45,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:07:45,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:45,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:45,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:45,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:45,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:45,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:45,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:45,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:45,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:45,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:45,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:07:45,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:45,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:45,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:45,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:45,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:45,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:45,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:45,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:45,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:45,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:45,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:45,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:45,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:45,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:45,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:45,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:45,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:45,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:45,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:45,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:45,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:45,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:07:45,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:45,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:45,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:45,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:45,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:45,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:45,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:45,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:07:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:45,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:45,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:45,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 06:07:45,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:45,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 06:07:45,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:45,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:45,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:45,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:07:45,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:45,608 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 06:07:45,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2059457323] [2020-10-13 06:07:45,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:45,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:07:45,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202979462] [2020-10-13 06:07:45,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:07:45,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:45,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:07:45,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:07:45,609 INFO L87 Difference]: Start difference. First operand 483 states and 529 transitions. Second operand 6 states. [2020-10-13 06:07:46,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:46,440 INFO L93 Difference]: Finished difference Result 980 states and 1104 transitions. [2020-10-13 06:07:46,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:46,440 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 325 [2020-10-13 06:07:46,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:46,443 INFO L225 Difference]: With dead ends: 980 [2020-10-13 06:07:46,443 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:07:46,444 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 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 06:07:46,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:07:46,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:07:46,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:07:46,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 527 transitions. [2020-10-13 06:07:46,454 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 527 transitions. Word has length 325 [2020-10-13 06:07:46,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:46,455 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 527 transitions. [2020-10-13 06:07:46,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:07:46,455 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 527 transitions. [2020-10-13 06:07:46,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-10-13 06:07:46,457 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:46,457 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] [2020-10-13 06:07:46,458 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-13 06:07:46,458 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:46,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:46,458 INFO L82 PathProgramCache]: Analyzing trace with hash -992889265, now seen corresponding path program 1 times [2020-10-13 06:07:46,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:46,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [286863961] [2020-10-13 06:07:46,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:46,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:46,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:46,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:47,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:48,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:48,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 347 [2020-10-13 06:07:48,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:07:48,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2193 [2020-10-13 06:07:48,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:48,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:48,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 234 [2020-10-13 06:07:48,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:07:48,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:49,055 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-10-13 06:07:49,262 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 51 [2020-10-13 06:07:49,505 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 52 [2020-10-13 06:07:49,747 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 49 [2020-10-13 06:07:49,964 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 45 [2020-10-13 06:07:50,170 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 41 [2020-10-13 06:07:50,367 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 37 [2020-10-13 06:07:50,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:50,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:50,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:50,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:50,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:50,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:50,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:50,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:50,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:50,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:50,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:50,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:50,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:50,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:50,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:50,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:50,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:50,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:50,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:07:50,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:50,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:50,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:50,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:50,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:50,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:50,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:50,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:50,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:50,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:50,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:07:50,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:50,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:50,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:50,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:50,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:50,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:50,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:50,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:50,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:50,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:50,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:50,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:50,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:50,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:50,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:50,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:50,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:50,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:50,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:50,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:07:50,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:50,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:50,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:50,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:50,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:50,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:50,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:50,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:07:50,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:50,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:50,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:50,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:07:50,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:50,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:50,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:50,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:50,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:50,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:50,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:50,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:07:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:50,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:50,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:50,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 06:07:50,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:50,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:07:50,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:50,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:50,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:50,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:07:50,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:50,826 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 06:07:50,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [286863961] [2020-10-13 06:07:50,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:50,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:50,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844197647] [2020-10-13 06:07:50,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:50,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:50,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:50,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:50,828 INFO L87 Difference]: Start difference. First operand 483 states and 527 transitions. Second operand 13 states. [2020-10-13 06:07:51,565 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2020-10-13 06:07:51,729 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-13 06:07:51,901 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 06:07:52,338 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 116 [2020-10-13 06:07:52,618 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2020-10-13 06:07:52,962 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 113 [2020-10-13 06:07:53,370 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 110 [2020-10-13 06:07:53,687 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 107 [2020-10-13 06:07:54,056 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 102 [2020-10-13 06:07:54,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:54,633 INFO L93 Difference]: Finished difference Result 956 states and 1072 transitions. [2020-10-13 06:07:54,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:07:54,634 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 327 [2020-10-13 06:07:54,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:54,637 INFO L225 Difference]: With dead ends: 956 [2020-10-13 06:07:54,637 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:07:54,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:07:54,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:07:54,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 537. [2020-10-13 06:07:54,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:07:54,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 591 transitions. [2020-10-13 06:07:54,651 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 591 transitions. Word has length 327 [2020-10-13 06:07:54,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:54,652 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 591 transitions. [2020-10-13 06:07:54,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:54,652 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 591 transitions. [2020-10-13 06:07:54,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-10-13 06:07:54,654 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:54,654 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] [2020-10-13 06:07:54,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-13 06:07:54,655 INFO L427 AbstractCegarLoop]: === Iteration 30 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:54,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:54,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1930356547, now seen corresponding path program 1 times [2020-10-13 06:07:54,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:54,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2107316411] [2020-10-13 06:07:54,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:54,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:54,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:55,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:55,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:55,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 348 [2020-10-13 06:07:55,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:07:55,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 361 [2020-10-13 06:07:55,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:55,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:55,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 235 [2020-10-13 06:07:55,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:07:55,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:55,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:55,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:55,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:55,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:55,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:55,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:55,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:07:55,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:55,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:55,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:55,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:55,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:55,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:55,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:55,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:55,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:55,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:55,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:07:55,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:55,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:55,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:55,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:55,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:55,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:55,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:55,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:55,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:55,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:55,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:07:55,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:55,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:55,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:55,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:55,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:55,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:55,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:55,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:55,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:55,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:55,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:55,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:55,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:55,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:55,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:55,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:55,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:55,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:55,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:55,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:07:55,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:55,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:55,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:55,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:55,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:55,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:55,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:55,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:07:55,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:55,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:55,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:55,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:07:55,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:55,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:07:55,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:55,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:55,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:55,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:55,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:55,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:07:55,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:55,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:55,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:55,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 06:07:55,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:55,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:07:55,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:55,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:55,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:55,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 06:07:55,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:55,473 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 06:07:55,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2107316411] [2020-10-13 06:07:55,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:55,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:07:55,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735218412] [2020-10-13 06:07:55,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:07:55,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:55,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:07:55,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:07:55,475 INFO L87 Difference]: Start difference. First operand 537 states and 591 transitions. Second operand 5 states. [2020-10-13 06:07:56,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:56,277 INFO L93 Difference]: Finished difference Result 1083 states and 1222 transitions. [2020-10-13 06:07:56,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:56,278 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 328 [2020-10-13 06:07:56,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:56,280 INFO L225 Difference]: With dead ends: 1083 [2020-10-13 06:07:56,281 INFO L226 Difference]: Without dead ends: 537 [2020-10-13 06:07:56,282 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 06:07:56,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2020-10-13 06:07:56,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2020-10-13 06:07:56,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:07:56,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 588 transitions. [2020-10-13 06:07:56,291 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 588 transitions. Word has length 328 [2020-10-13 06:07:56,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:56,291 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 588 transitions. [2020-10-13 06:07:56,291 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:07:56,291 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 588 transitions. [2020-10-13 06:07:56,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-10-13 06:07:56,293 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:56,293 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] [2020-10-13 06:07:56,293 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-13 06:07:56,293 INFO L427 AbstractCegarLoop]: === Iteration 31 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:56,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:56,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1611384232, now seen corresponding path program 1 times [2020-10-13 06:07:56,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:56,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [462090011] [2020-10-13 06:07:56,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:56,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:56,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:56,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:56,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:57,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:57,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 345 [2020-10-13 06:07:57,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:07:57,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 834 [2020-10-13 06:07:57,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:57,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:57,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 232 [2020-10-13 06:07:57,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 06:07:57,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:57,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:57,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:57,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:57,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:57,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:57,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:57,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:57,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:57,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:57,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:57,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:57,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:57,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:57,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:57,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:57,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:57,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:57,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:07:57,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:57,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:57,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:57,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:57,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:57,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:57,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:57,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:57,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:57,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:57,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:57,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:57,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:57,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:57,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:57,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:57,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:57,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:07:57,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:57,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:57,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:57,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:57,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:57,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:57,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:57,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:57,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:57,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:57,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:57,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:07:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:57,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:57,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:57,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:07:57,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:57,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:57,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:57,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:57,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:57,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:57,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:57,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:07:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:57,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:57,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:57,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 06:07:57,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:57,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 06:07:57,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:57,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:57,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:57,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 06:07:57,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:57,723 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 06:07:57,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [462090011] [2020-10-13 06:07:57,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:57,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:07:57,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134905500] [2020-10-13 06:07:57,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:07:57,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:57,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:07:57,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:07:57,725 INFO L87 Difference]: Start difference. First operand 537 states and 588 transitions. Second operand 5 states. [2020-10-13 06:07:58,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:58,583 INFO L93 Difference]: Finished difference Result 1085 states and 1217 transitions. [2020-10-13 06:07:58,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:58,584 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 327 [2020-10-13 06:07:58,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:58,587 INFO L225 Difference]: With dead ends: 1085 [2020-10-13 06:07:58,587 INFO L226 Difference]: Without dead ends: 514 [2020-10-13 06:07:58,588 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 06:07:58,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-10-13 06:07:58,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2020-10-13 06:07:58,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2020-10-13 06:07:58,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 562 transitions. [2020-10-13 06:07:58,598 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 562 transitions. Word has length 327 [2020-10-13 06:07:58,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:58,598 INFO L479 AbstractCegarLoop]: Abstraction has 514 states and 562 transitions. [2020-10-13 06:07:58,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:07:58,598 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 562 transitions. [2020-10-13 06:07:58,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2020-10-13 06:07:58,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:58,601 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] [2020-10-13 06:07:58,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-13 06:07:58,601 INFO L427 AbstractCegarLoop]: === Iteration 32 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:58,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:58,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1505614075, now seen corresponding path program 1 times [2020-10-13 06:07:58,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:58,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [720308106] [2020-10-13 06:07:58,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:58,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:58,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:58,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:58,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:59,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:00,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:00,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 369 [2020-10-13 06:08:00,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:08:00,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1900 [2020-10-13 06:08:00,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:00,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:00,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-10-13 06:08:00,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 06:08:00,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:00,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:00,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:00,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:00,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:00,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:00,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:00,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:00,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:00,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:00,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:00,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:00,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:00,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:00,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:00,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:00,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:00,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:00,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:00,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:00,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:00,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:00,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:00,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:00,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:00,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:00,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:00,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:00,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:00,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:00,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:08:00,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:00,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:00,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:00,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:00,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:00,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:00,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:00,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:00,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:00,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:00,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:00,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:00,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:00,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:00,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:00,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:00,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:00,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:00,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:00,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:00,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:00,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:00,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:00,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:00,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:00,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:00,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:00,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:00,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:00,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:00,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:00,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:00,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:08:00,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:00,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:08:00,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:00,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:00,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:00,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:00,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:00,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:08:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:00,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:00,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:00,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 06:08:00,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:00,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:08:00,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:00,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:00,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:00,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 06:08:00,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:01,066 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 06:08:01,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [720308106] [2020-10-13 06:08:01,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:01,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:08:01,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058776075] [2020-10-13 06:08:01,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:08:01,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:01,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:08:01,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:01,068 INFO L87 Difference]: Start difference. First operand 514 states and 562 transitions. Second operand 6 states. [2020-10-13 06:08:01,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:01,612 INFO L93 Difference]: Finished difference Result 897 states and 993 transitions. [2020-10-13 06:08:01,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:01,613 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 349 [2020-10-13 06:08:01,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:01,614 INFO L225 Difference]: With dead ends: 897 [2020-10-13 06:08:01,614 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:08:01,615 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:08:01,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:08:01,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:08:01,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:08:01,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:08:01,616 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 349 [2020-10-13 06:08:01,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:01,617 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:08:01,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:08:01,617 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:08:01,617 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:08:01,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-13 06:08:01,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:08:02,299 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-10-13 06:08:02,418 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 153 [2020-10-13 06:08:02,564 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 52 [2020-10-13 06:08:08,625 WARN L193 SmtUtils]: Spent 6.05 s on a formula simplification. DAG size of input: 373 DAG size of output: 274 [2020-10-13 06:08:11,189 WARN L193 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 194 DAG size of output: 159 [2020-10-13 06:08:12,553 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 161 DAG size of output: 125 [2020-10-13 06:08:12,558 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:08:12,559 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 06:08:12,559 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:08:12,559 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-13 06:08:12,559 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-13 06:08:12,560 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,560 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,560 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,560 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,560 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,561 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,561 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-13 06:08:12,561 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-13 06:08:12,561 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-13 06:08:12,561 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-13 06:08:12,561 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-13 06:08:12,561 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-13 06:08:12,561 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-13 06:08:12,562 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-13 06:08:12,562 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-13 06:08:12,562 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-13 06:08:12,562 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,562 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,562 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,562 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,562 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,562 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,562 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-13 06:08:12,562 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-13 06:08:12,562 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-13 06:08:12,562 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-13 06:08:12,562 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-13 06:08:12,563 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-13 06:08:12,563 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-13 06:08:12,563 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-13 06:08:12,563 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-13 06:08:12,563 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-13 06:08:12,563 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-13 06:08:12,563 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 497) no Hoare annotation was computed. [2020-10-13 06:08:12,563 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-13 06:08:12,563 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-13 06:08:12,563 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-13 06:08:12,563 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-13 06:08:12,564 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,564 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,564 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,564 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,564 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,564 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-13 06:08:12,564 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-13 06:08:12,564 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-13 06:08:12,564 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-13 06:08:12,565 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-13 06:08:12,565 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-13 06:08:12,565 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-13 06:08:12,565 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-13 06:08:12,565 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-13 06:08:12,565 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,565 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,565 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,565 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,565 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,565 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-13 06:08:12,565 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-13 06:08:12,566 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-13 06:08:12,566 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-13 06:08:12,566 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-13 06:08:12,566 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-13 06:08:12,566 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-13 06:08:12,566 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-13 06:08:12,566 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-13 06:08:12,566 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-13 06:08:12,566 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-13 06:08:12,567 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-13 06:08:12,567 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-13 06:08:12,567 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,567 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,567 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,567 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,567 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,567 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-13 06:08:12,567 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-13 06:08:12,567 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-13 06:08:12,568 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-13 06:08:12,568 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-13 06:08:12,568 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-13 06:08:12,568 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-13 06:08:12,568 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-13 06:08:12,568 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-13 06:08:12,568 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,568 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,568 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,568 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,568 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,569 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,569 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-13 06:08:12,569 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,569 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-13 06:08:12,569 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-13 06:08:12,569 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-13 06:08:12,569 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-13 06:08:12,569 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-13 06:08:12,569 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-13 06:08:12,569 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-13 06:08:12,570 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-13 06:08:12,570 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-13 06:08:12,570 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-13 06:08:12,570 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-13 06:08:12,570 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-13 06:08:12,570 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-13 06:08:12,570 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,570 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,570 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,570 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,571 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,571 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-13 06:08:12,571 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-13 06:08:12,571 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-13 06:08:12,571 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-13 06:08:12,571 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-13 06:08:12,571 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-13 06:08:12,571 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-13 06:08:12,571 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-13 06:08:12,571 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,572 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,572 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,572 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,572 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,572 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-13 06:08:12,572 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-13 06:08:12,572 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-13 06:08:12,572 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-13 06:08:12,572 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-13 06:08:12,572 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-13 06:08:12,572 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-13 06:08:12,573 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-13 06:08:12,573 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-13 06:08:12,573 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-13 06:08:12,574 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse29 (= |old(~a21~0)| 1)) (.cse39 (= |old(~a20~0)| 1)) (.cse40 (= |old(~a17~0)| 1)) (.cse66 (not (= |calculate_output_#in~input| 3))) (.cse67 (not (= |calculate_output_#in~input| 2))) (.cse68 (not (= |calculate_output_#in~input| 4))) (.cse69 (not (= |calculate_output_#in~input| 1))) (.cse70 (not (= |calculate_output_#in~input| 5))) (.cse42 (= |old(~a7~0)| 1)) (.cse36 (= ~a16~0 |old(~a16~0)|)) (.cse53 (<= ~a8~0 15)) (.cse54 (<= 15 ~a8~0)) (.cse2 (= ~a21~0 1)) (.cse43 (= ~a8~0 15)) (.cse60 (= 5 ~a16~0)) (.cse7 (not (<= |old(~a7~0)| 0))) (.cse4 (= ~a8~0 |old(~a8~0)|)) (.cse37 (<= ~a21~0 1)) (.cse38 (<= 1 ~a21~0)) (.cse0 (= ~a7~0 |old(~a7~0)|)) (.cse1 (= ~a17~0 |old(~a17~0)|)) (.cse62 (= ~a21~0 |old(~a21~0)|)) (.cse3 (= ~a20~0 |old(~a20~0)|)) (.cse41 (= ~a8~0 13)) (.cse5 (= ~a16~0 4))) (let ((.cse27 (and .cse0 .cse1 .cse62 .cse3 .cse41 .cse5)) (.cse15 (not (<= 1 |old(~a17~0)|))) (.cse17 (not (<= 13 |old(~a8~0)|))) (.cse19 (not (<= 1 |old(~a20~0)|))) (.cse13 (and .cse0 .cse1 .cse3 (<= ~a16~0 4) .cse4 (<= 4 ~a16~0) .cse37 .cse38)) (.cse16 (not (<= |old(~a16~0)| 4))) (.cse21 (not (<= 4 |old(~a16~0)|))) (.cse51 (and .cse7 (not (<= 2 |old(~a7~0)|)))) (.cse46 (and .cse0 .cse1 .cse2 .cse3 .cse43 .cse60)) (.cse44 (not (= 5 |old(~a16~0)|))) (.cse20 (not (<= |old(~a20~0)| 1))) (.cse35 (not (<= |old(~a16~0)| 6))) (.cse57 (not (< 5 |old(~a16~0)|))) (.cse23 (not (<= |old(~a8~0)| 13))) (.cse48 (not (<= 14 |old(~a8~0)|))) (.cse61 (not (<= |old(~a7~0)| 1))) (.cse49 (not (<= |old(~a8~0)| 14))) (.cse45 (not (<= |old(~a20~0)| 0))) (.cse55 (not (< 0 |old(~a17~0)|))) (.cse63 (not (<= 5 |old(~a16~0)|))) (.cse52 (not (<= |old(~a8~0)| 15))) (.cse14 (not (<= |old(~a21~0)| 1))) (.cse64 (not (<= |old(~a16~0)| 5))) (.cse56 (not (<= 15 |old(~a8~0)|))) (.cse22 (not (<= 1 |old(~a21~0)|))) (.cse58 (and .cse0 .cse1 .cse3 .cse36 .cse37 .cse38 .cse53 .cse54)) (.cse18 (not (<= |old(~a17~0)| 1))) (.cse32 (not (= |old(~a17~0)| |old(~a20~0)|))) (.cse28 (not (= 0 |old(~a20~0)|))) (.cse65 (not (= 6 |old(~a16~0)|))) (.cse47 (not (= 0 |old(~a17~0)|))) (.cse26 (not .cse42)) (.cse30 (and .cse66 .cse67 .cse68 .cse69 .cse70 (not (= |calculate_output_#in~input| 6)))) (.cse25 (not .cse40)) (.cse6 (not (= 14 |old(~a8~0)|))) (.cse59 (= 14 ~a8~0)) (.cse31 (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))))) (.cse8 (not .cse39)) (.cse9 (not (<= |old(~a17~0)| 0))) (.cse33 (and .cse0 .cse1 .cse2 .cse3 .cse43 .cse5)) (.cse34 (not (= 15 |old(~a8~0)|))) (.cse24 (not (= |old(~a8~0)| 13))) (.cse71 (= ~a7~0 0)) (.cse50 (not (= |old(~a7~0)| |old(~a17~0)|))) (.cse10 (not .cse29)) (.cse11 (not (= ~a12~0 8))) (.cse72 (not (= |old(~a7~0)| 0))) (.cse12 (not (= 4 |old(~a16~0)|)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12) (or .cse13 .cse7 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse11) (or .cse24 .cse25 .cse26 .cse27 .cse28 .cse29 .cse30 .cse11 .cse12) (or .cse24 .cse31 .cse26 .cse27 .cse8 .cse9 .cse29 .cse11 .cse12) (or .cse32 .cse26 .cse28 .cse33 .cse34 .cse10 .cse11 .cse12) (or .cse7 .cse14 .cse15 .cse17 .cse18 .cse19 .cse20 .cse35 .cse22 .cse23 (and .cse0 .cse1 .cse3 .cse36 .cse4 .cse37 .cse38) (not (<= 6 |old(~a16~0)|)) .cse11) (or .cse24 .cse39 .cse40 .cse10 (and .cse0 .cse1 .cse2 .cse3 .cse41 .cse5) .cse11 .cse12 .cse42) (or .cse26 (and .cse0 .cse1 .cse2 .cse3 .cse36 .cse43) .cse9 .cse44 .cse34 .cse10 .cse11 .cse45) (or .cse6 .cse7 .cse9 .cse44 (and .cse0 .cse1 .cse2 .cse3 .cse36 .cse4) .cse10 .cse11 .cse45) (or .cse46 .cse44 .cse30 .cse34 .cse10 .cse11 .cse42 .cse47) (or .cse21 .cse13 .cse48 .cse7 .cse14 .cse22 .cse16 .cse49 .cse9 .cse11 .cse45) (or .cse24 (not (= |old(~a17~0)| |old(~a21~0)|)) .cse25 .cse50 .cse32 (and .cse1 (= ~a21~0 ~a17~0) .cse3 .cse41 .cse5 (= ~a17~0 ~a7~0)) .cse11 .cse12) (or .cse51 (and (not (<= 2 |old(~a20~0)|)) .cse45) .cse52 .cse14 .cse16 .cse18 (and .cse0 (< 0 ~a17~0) .cse3 .cse36 (<= ~a17~0 1) .cse37 .cse38 .cse53 .cse54) .cse21 .cse55 .cse56 .cse22 .cse30 .cse11) (or .cse51 .cse52 .cse14 .cse18 .cse55 .cse35 .cse57 .cse56 .cse22 .cse58 .cse30 .cse11 .cse45) (or .cse25 .cse39 .cse46 .cse44 .cse30 .cse34 .cse10 .cse11 .cse42) (or .cse6 .cse26 .cse8 (and .cse0 .cse1 .cse2 .cse3 .cse59 .cse60) .cse44 .cse10 .cse11 .cse47) (or .cse24 .cse25 (not (= 0 |old(~a21~0)|)) (and .cse0 .cse1 .cse3 .cse41 (= ~a21~0 0) .cse60) .cse26 .cse8 .cse44 .cse30 .cse11) (or (and (not (<= |old(~a21~0)| 0)) (not (<= 2 |old(~a21~0)|))) .cse61 .cse9 .cse20 (not (< 0 |old(~a7~0)|)) .cse35 .cse57 .cse31 (and .cse0 .cse1 (< 12 ~a8~0) .cse62 .cse3 .cse36 (<= ~a8~0 13)) .cse23 (not (< 12 |old(~a8~0)|)) .cse11 (not (< 0 |old(~a20~0)|))) (or .cse63 .cse48 .cse14 .cse64 (and (<= 1 ~a7~0) .cse1 .cse3 .cse36 .cse4 .cse37 .cse38 (<= ~a7~0 1)) (not (<= 1 |old(~a7~0)|)) .cse22 .cse61 .cse49 .cse9 .cse11 .cse45) (or .cse6 .cse14 (and .cse0 .cse1 .cse3 .cse59 .cse37 .cse5 (< ~a7~0 (+ ~a21~0 1))) (not (< |old(~a7~0)| (+ |old(~a21~0)| 1))) .cse26 .cse9 .cse11 .cse45 .cse12) (or .cse55 .cse63 .cse52 .cse7 .cse14 .cse31 .cse64 .cse56 .cse22 .cse58 .cse18 .cse11) (or .cse32 .cse28 .cse33 .cse30 .cse34 .cse10 .cse11 .cse12) (or .cse31 (and .cse1 .cse0 .cse2 .cse3 .cse36 .cse43) .cse65 .cse8 .cse40 .cse34 .cse10 .cse11 .cse42) (or (and (or .cse39 (and .cse66 .cse67 (not (= |calculate_output_#in~input| |old(~a16~0)|)) .cse68 .cse69 .cse70) .cse65 .cse34 .cse10 .cse11 .cse42 .cse47) (or .cse24 .cse25 .cse26 .cse8 .cse29 .cse30 .cse11 .cse12)) (and .cse0 .cse2 .cse3 (= ~a16~0 6) .cse43 (not (= ~a20~0 1)) (= ~a17~0 0)) (and .cse0 .cse62 .cse3 .cse41 (not .cse2) .cse5 (= ~a17~0 1))) (or .cse25 .cse6 .cse8 (and .cse1 .cse2 .cse3 .cse59 .cse5 .cse71) .cse10 .cse11 .cse72 .cse12) (or .cse31 .cse8 .cse9 .cse33 .cse34 .cse10 .cse11 .cse12 .cse42) (or .cse24 (and .cse1 .cse2 .cse3 .cse41 .cse5 .cse71) .cse50 .cse10 .cse11 .cse72 .cse12)))) [2020-10-13 06:08:12,574 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-13 06:08:12,574 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,574 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,574 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,574 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,575 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-13 06:08:12,575 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,575 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,575 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-13 06:08:12,575 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-13 06:08:12,575 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-13 06:08:12,575 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-13 06:08:12,575 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-13 06:08:12,575 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-13 06:08:12,575 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-13 06:08:12,575 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-13 06:08:12,575 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-13 06:08:12,575 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-13 06:08:12,575 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-13 06:08:12,576 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-13 06:08:12,576 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,576 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,576 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,576 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,576 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,576 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-13 06:08:12,576 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,576 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-13 06:08:12,576 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-13 06:08:12,576 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-13 06:08:12,576 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-13 06:08:12,576 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-13 06:08:12,576 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-13 06:08:12,576 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-13 06:08:12,577 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-13 06:08:12,577 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-13 06:08:12,577 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-13 06:08:12,577 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-13 06:08:12,577 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-13 06:08:12,577 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-13 06:08:12,577 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-13 06:08:12,577 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,577 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,577 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,577 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,577 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,577 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:08:12,577 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-13 06:08:12,577 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-13 06:08:12,578 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-13 06:08:12,578 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-13 06:08:12,578 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-13 06:08:12,578 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-13 06:08:12,578 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-13 06:08:12,578 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-13 06:08:12,578 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-13 06:08:12,578 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-13 06:08:12,578 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:08:12,578 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~a20~0) (<= 1 ~a17~0) (<= ~a16~0 5) (= ~a12~0 8) (<= ~a7~0 0) (<= ~a21~0 1) (<= ~a20~0 1) (<= ~a17~0 1) (<= 1 ~a21~0) (<= 5 ~a16~0) (<= ~a8~0 15) (<= 15 ~a8~0)) [2020-10-13 06:08:12,578 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:08:12,578 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:08:12,579 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a21~0)| 1)) (not (<= 1 |old(~a17~0)|)) (not (<= |old(~a17~0)| 1)) (not (<= 1 |old(~a20~0)|)) (not (<= |old(~a20~0)| 1)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (<= 1 |old(~a21~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (<= ~a21~0 1) (<= 1 ~a21~0) (<= ~a8~0 15) (<= 15 ~a8~0)) (not (= ~a12~0 8))) [2020-10-13 06:08:12,579 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:08:12,579 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse14 (= 5 main_~input~0)) (.cse15 (= main_~input~0 4)) (.cse16 (= 3 main_~input~0)) (.cse17 (= main_~input~0 1)) (.cse18 (= 2 main_~input~0)) (.cse1 (= ~a7~0 1)) (.cse6 (= ~a17~0 1)) (.cse11 (= ~a20~0 1)) (.cse7 (= ~a21~0 1))) (let ((.cse3 (not .cse7)) (.cse0 (= ~a20~0 0)) (.cse29 (<= ~a7~0 1)) (.cse13 (= ~a20~0 ~a17~0)) (.cse30 (= ~a17~0 ~a7~0)) (.cse25 (not .cse11)) (.cse41 (<= ~a8~0 15)) (.cse42 (<= 15 ~a8~0)) (.cse32 (<= ~a16~0 6)) (.cse33 (<= 13 ~a8~0)) (.cse34 (<= 1 ~a20~0)) (.cse38 (<= 1 ~a17~0)) (.cse35 (<= 6 ~a16~0)) (.cse36 (<= ~a20~0 1)) (.cse40 (<= ~a17~0 1)) (.cse37 (<= ~a8~0 13)) (.cse26 (<= 14 ~a8~0)) (.cse27 (<= ~a8~0 14)) (.cse44 (<= ~a16~0 4)) (.cse9 (<= ~a17~0 0)) (.cse45 (<= 4 ~a16~0)) (.cse39 (<= ~a7~0 0)) (.cse22 (<= ~a21~0 1)) (.cse28 (<= 1 ~a21~0)) (.cse23 (<= ~a20~0 0)) (.cse19 (= ~a16~0 6)) (.cse24 (not .cse6)) (.cse8 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 2 main_~input~0) (<= main_~input~0 2)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) (and (<= main_~input~0 1) (<= 1 main_~input~0)) (and (<= main_~input~0 5) (<= 5 main_~input~0)))) (.cse21 (= 14 ~a8~0)) (.cse5 (= ~a16~0 4)) (.cse31 (= ~a7~0 0)) (.cse10 (= ~a8~0 15)) (.cse12 (not .cse1)) (.cse20 (= ~a17~0 0)) (.cse2 (or .cse14 (= 6 main_~input~0) .cse15 .cse16 .cse17 .cse18)) (.cse4 (= ~a8~0 13)) (.cse43 (= 5 ~a16~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (not (<= 5 |old(~a16~0)|)) (and .cse7 .cse8 .cse9 .cse10 .cse11 .cse5 .cse12) (and .cse0 .cse13 .cse7 .cse1 .cse10 .cse5) (and (or .cse14 (= ~a16~0 main_~input~0) .cse15 .cse16 .cse17 .cse18) .cse7 .cse19 .cse10 .cse12 .cse20) (not (<= |old(~a21~0)| 1)) (not (<= 1 |old(~a17~0)|)) (and .cse1 .cse21 .cse9 .cse5 .cse22 (< ~a7~0 (+ ~a21~0 1)) .cse23) (not (<= |old(~a17~0)| 1)) (not (<= 1 |old(~a20~0)|)) (and .cse7 .cse24 .cse4 .cse5 .cse12 .cse25) (and .cse26 .cse27 (<= ~a16~0 5) .cse9 .cse22 .cse28 (<= 5 ~a16~0) .cse29 .cse23) (and .cse1 .cse8 .cse9 .cse3 .cse4 .cse11 .cse5) (not (<= 1 |old(~a21~0)|)) (and .cse0 .cse13 .cse7 .cse2 .cse10 .cse5) (and .cse7 .cse4 .cse5 .cse30 .cse31) (and (<= 1 ~a7~0) .cse32 .cse33 .cse34 .cse35 .cse8 .cse9 .cse36 .cse29 (or (< 1 ~a21~0) (<= ~a21~0 0)) .cse37) (not (= ~a12~0 8)) (and .cse32 .cse38 .cse35 .cse2 (or (< 1 ~a7~0) .cse39) .cse22 .cse40 .cse28 .cse41 .cse42 .cse23) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a7~0)| 0)) (and .cse7 .cse1 .cse9 .cse10 .cse43 .cse23) (and (= ~a21~0 ~a17~0) .cse13 .cse4 .cse5 .cse30 .cse6) (and .cse7 .cse2 .cse5 .cse12 .cse41 .cse25 .cse42 .cse6) (and .cse7 .cse1 .cse21 .cse11 .cse43 .cse20) (and .cse33 .cse34 .cse38 .cse44 .cse45 .cse39 .cse22 .cse36 .cse40 .cse28 .cse37) (and .cse7 .cse2 .cse10 .cse12 .cse43 .cse25 .cse6) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) .cse8 (= ~a16~0 |old(~a16~0)|) .cse22 .cse28 .cse41 .cse42) (and .cse32 .cse33 .cse34 .cse38 .cse35 .cse39 .cse22 .cse36 .cse40 .cse28 .cse37) (not (<= |old(~a20~0)| 1)) (and .cse7 .cse21 .cse9 .cse39 .cse11 .cse5) (and .cse26 .cse27 .cse44 .cse9 .cse45 .cse39 .cse22 .cse28 .cse23) (not (<= |old(~a16~0)| 5)) (and .cse7 .cse19 .cse24 .cse8 .cse10 .cse11 .cse12) (not (<= 15 |old(~a8~0)|)) (and .cse1 .cse2 .cse4 .cse11 .cse5 .cse6) (and .cse7 .cse21 .cse11 .cse5 .cse31 .cse6) (and .cse7 .cse2 .cse10 .cse12 .cse43 .cse20) (and .cse1 .cse2 .cse4 (= ~a21~0 0) .cse11 .cse43 .cse6)))) [2020-10-13 06:08:12,579 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-13 06:08:12,579 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-13 06:08:12,580 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse2 (= ~a20~0 1)) (.cse0 (= ~a7~0 1)) (.cse4 (= ~a17~0 1)) (.cse5 (= ~a21~0 1))) (let ((.cse17 (not .cse5)) (.cse1 (= ~a8~0 13)) (.cse9 (= ~a17~0 0)) (.cse6 (= ~a16~0 6)) (.cse15 (not .cse4)) (.cse23 (<= 1 ~a17~0)) (.cse26 (<= ~a17~0 1)) (.cse27 (<= ~a8~0 15)) (.cse28 (<= 15 ~a8~0)) (.cse8 (not .cse0)) (.cse3 (= 5 ~a16~0)) (.cse16 (not .cse2)) (.cse30 (= ~a20~0 0)) (.cse7 (= ~a8~0 15)) (.cse22 (<= ~a16~0 6)) (.cse31 (<= 13 ~a8~0)) (.cse32 (<= 1 ~a20~0)) (.cse24 (<= 6 ~a16~0)) (.cse35 (<= ~a20~0 1)) (.cse21 (<= ~a7~0 1)) (.cse36 (<= ~a8~0 13)) (.cse18 (<= 14 ~a8~0)) (.cse19 (<= ~a8~0 14)) (.cse33 (<= ~a16~0 4)) (.cse11 (<= ~a17~0 0)) (.cse34 (<= 4 ~a16~0)) (.cse25 (<= ~a7~0 0)) (.cse13 (<= ~a21~0 1)) (.cse20 (<= 1 ~a21~0)) (.cse14 (<= ~a20~0 0)) (.cse10 (= 14 ~a8~0)) (.cse12 (= ~a16~0 4)) (.cse29 (= ~a7~0 0))) (or (and .cse0 .cse1 (= ~a21~0 0) .cse2 .cse3 .cse4) (not (<= 5 |old(~a16~0)|)) (and .cse5 .cse6 .cse7 .cse8 .cse9) (not (<= |old(~a21~0)| 1)) (not (<= 1 |old(~a17~0)|)) (and .cse0 .cse10 .cse11 .cse12 .cse13 (< ~a7~0 (+ ~a21~0 1)) .cse14) (not (<= |old(~a17~0)| 1)) (and .cse0 .cse1 .cse2 .cse12 .cse4) (not (<= 1 |old(~a20~0)|)) (and .cse5 .cse15 .cse1 .cse12 .cse8 .cse16) (and .cse5 .cse11 .cse7 .cse2 .cse12 .cse8) (and .cse5 .cse7 .cse8 .cse3 .cse9) (and .cse0 .cse11 .cse17 .cse1 .cse2 .cse12) (and .cse18 .cse19 (<= ~a16~0 5) .cse11 .cse13 .cse20 (<= 5 ~a16~0) .cse21 .cse14) (not (<= 1 |old(~a21~0)|)) (and .cse22 .cse23 .cse24 (or (< 1 ~a7~0) .cse25) .cse13 .cse26 .cse20 .cse27 .cse28 .cse14) (and .cse5 .cse12 .cse8 .cse27 .cse16 .cse28 .cse4) (and .cse5 .cse1 .cse12 (= ~a17~0 ~a7~0) .cse29) (not (= ~a12~0 8)) (and .cse30 .cse0 .cse17 .cse1 .cse12 .cse4) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a7~0)| 0)) (and .cse5 .cse0 .cse11 .cse7 .cse3 .cse14) (and .cse5 .cse0 .cse10 .cse2 .cse3 .cse9) (and .cse5 .cse6 .cse15 .cse7 .cse2 .cse8) (and .cse31 .cse32 .cse23 .cse33 .cse34 .cse25 .cse13 .cse35 .cse26 .cse20 .cse36) (and .cse22 .cse31 .cse32 .cse23 .cse24 .cse25 .cse13 .cse35 .cse26 .cse20 .cse36) (not (<= |old(~a20~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a16~0 |old(~a16~0)|) .cse13 .cse20 .cse27 .cse28) (and .cse5 .cse7 .cse8 .cse3 .cse16 .cse4) (and .cse30 (= ~a20~0 ~a17~0) .cse5 .cse7 .cse12) (and (<= 1 ~a7~0) .cse22 .cse31 .cse32 .cse24 .cse11 .cse35 .cse21 (or (< 1 ~a21~0) (<= ~a21~0 0)) .cse36) (and .cse5 .cse10 .cse11 .cse25 .cse2 .cse12) (and .cse18 .cse19 .cse33 .cse11 .cse34 .cse25 .cse13 .cse20 .cse14) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (and .cse5 .cse10 .cse2 .cse12 .cse29 .cse4)))) [2020-10-13 06:08:12,580 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:08:12,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:08:12 BoogieIcfgContainer [2020-10-13 06:08:12,620 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:08:12,622 INFO L168 Benchmark]: Toolchain (without parser) took 157375.02 ms. Allocated memory was 141.0 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 102.4 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2020-10-13 06:08:12,622 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 06:08:12,623 INFO L168 Benchmark]: CACSL2BoogieTranslator took 832.97 ms. Allocated memory was 141.0 MB in the beginning and 207.6 MB in the end (delta: 66.6 MB). Free memory was 102.2 MB in the beginning and 174.1 MB in the end (delta: -72.0 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. [2020-10-13 06:08:12,623 INFO L168 Benchmark]: Boogie Preprocessor took 119.64 ms. Allocated memory is still 207.6 MB. Free memory was 174.1 MB in the beginning and 168.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2020-10-13 06:08:12,626 INFO L168 Benchmark]: RCFGBuilder took 1272.24 ms. Allocated memory was 207.6 MB in the beginning and 237.0 MB in the end (delta: 29.4 MB). Free memory was 168.7 MB in the beginning and 177.8 MB in the end (delta: -9.1 MB). Peak memory consumption was 80.3 MB. Max. memory is 7.1 GB. [2020-10-13 06:08:12,627 INFO L168 Benchmark]: TraceAbstraction took 155141.57 ms. Allocated memory was 237.0 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 176.4 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2020-10-13 06:08:12,631 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 832.97 ms. Allocated memory was 141.0 MB in the beginning and 207.6 MB in the end (delta: 66.6 MB). Free memory was 102.2 MB in the beginning and 174.1 MB in the end (delta: -72.0 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.64 ms. Allocated memory is still 207.6 MB. Free memory was 174.1 MB in the beginning and 168.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1272.24 ms. Allocated memory was 207.6 MB in the beginning and 237.0 MB in the end (delta: 29.4 MB). Free memory was 168.7 MB in the beginning and 177.8 MB in the end (delta: -9.1 MB). Peak memory consumption was 80.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 155141.57 ms. Allocated memory was 237.0 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 176.4 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 497]: 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) || !(5 <= \old(a16))) || ((((a21 == 1 && a16 == 6) && a8 == 15) && !(a7 == 1)) && a17 == 0)) || !(\old(a21) <= 1)) || !(1 <= \old(a17))) || ((((((a7 == 1 && 14 == a8) && a17 <= 0) && a16 == 4) && a21 <= 1) && a7 < a21 + 1) && a20 <= 0)) || !(\old(a17) <= 1)) || ((((a7 == 1 && a8 == 13) && a20 == 1) && a16 == 4) && a17 == 1)) || !(1 <= \old(a20))) || (((((a21 == 1 && !(a17 == 1)) && a8 == 13) && a16 == 4) && !(a7 == 1)) && !(a20 == 1))) || (((((a21 == 1 && a17 <= 0) && a8 == 15) && a20 == 1) && a16 == 4) && !(a7 == 1))) || ((((a21 == 1 && a8 == 15) && !(a7 == 1)) && 5 == a16) && a17 == 0)) || (((((a7 == 1 && a17 <= 0) && !(a21 == 1)) && a8 == 13) && a20 == 1) && a16 == 4)) || ((((((((14 <= a8 && a8 <= 14) && a16 <= 5) && a17 <= 0) && a21 <= 1) && 1 <= a21) && 5 <= a16) && a7 <= 1) && a20 <= 0)) || !(1 <= \old(a21))) || (((((((((a16 <= 6 && 1 <= a17) && 6 <= a16) && (1 < a7 || a7 <= 0)) && a21 <= 1) && a17 <= 1) && 1 <= a21) && a8 <= 15) && 15 <= a8) && a20 <= 0)) || ((((((a21 == 1 && a16 == 4) && !(a7 == 1)) && a8 <= 15) && !(a20 == 1)) && 15 <= a8) && a17 == 1)) || ((((a21 == 1 && a8 == 13) && a16 == 4) && a17 == a7) && a7 == 0)) || !(a12 == 8)) || (((((a20 == 0 && a7 == 1) && !(a21 == 1)) && a8 == 13) && a16 == 4) && a17 == 1)) || !(\old(a8) <= 15)) || !(\old(a7) <= 0)) || (((((a21 == 1 && a7 == 1) && a17 <= 0) && a8 == 15) && 5 == a16) && a20 <= 0)) || (((((a21 == 1 && a7 == 1) && 14 == a8) && a20 == 1) && 5 == a16) && a17 == 0)) || (((((a21 == 1 && a16 == 6) && !(a17 == 1)) && a8 == 15) && a20 == 1) && !(a7 == 1))) || ((((((((((13 <= a8 && 1 <= a20) && 1 <= a17) && a16 <= 4) && 4 <= a16) && a7 <= 0) && a21 <= 1) && a20 <= 1) && a17 <= 1) && 1 <= a21) && a8 <= 13)) || ((((((((((a16 <= 6 && 13 <= a8) && 1 <= a20) && 1 <= a17) && 6 <= a16) && a7 <= 0) && a21 <= 1) && a20 <= 1) && a17 <= 1) && 1 <= a21) && a8 <= 13)) || !(\old(a20) <= 1)) || ((((((a7 == \old(a7) && a17 == \old(a17)) && a16 == \old(a16)) && a21 <= 1) && 1 <= a21) && a8 <= 15) && 15 <= a8)) || (((((a21 == 1 && a8 == 15) && !(a7 == 1)) && 5 == a16) && !(a20 == 1)) && a17 == 1)) || ((((a20 == 0 && a20 == a17) && a21 == 1) && a8 == 15) && a16 == 4)) || (((((((((1 <= a7 && a16 <= 6) && 13 <= a8) && 1 <= a20) && 6 <= a16) && a17 <= 0) && a20 <= 1) && a7 <= 1) && (1 < a21 || a21 <= 0)) && a8 <= 13)) || (((((a21 == 1 && 14 == a8) && a17 <= 0) && a7 <= 0) && a20 == 1) && a16 == 4)) || ((((((((14 <= a8 && a8 <= 14) && a16 <= 4) && a17 <= 0) && 4 <= a16) && a7 <= 0) && a21 <= 1) && 1 <= a21) && a20 <= 0)) || !(\old(a16) <= 5)) || !(15 <= \old(a8))) || (((((a21 == 1 && 14 == a8) && a20 == 1) && a16 == 4) && a7 == 0) && a17 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 144.0s, OverallIterations: 32, TraceHistogramMax: 7, AutomataDifference: 61.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 824 SDtfs, 9647 SDslu, 1181 SDs, 0 SdLazy, 22880 SolverSat, 1291 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 804 GetRequests, 363 SyntacticMatches, 25 SemanticMatches, 416 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1021 ImplicationChecksByTransitivity, 43.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=608occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 32 MinimizatonAttempts, 232 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 214 PreInvPairs, 270 NumberOfFragments, 3855 HoareAnnotationTreeSize, 214 FomulaSimplifications, 1824 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3682 FormulaSimplificationTreeSizeReductionInter, 10.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 74.7s InterpolantComputationTime, 7832 NumberOfCodeBlocks, 7832 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 7800 ConstructedInterpolants, 0 QuantifiedInterpolants, 21083772 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 32 InterpolantComputations, 1 PerfectInterpolantSequences, 8321/8434 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...