/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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/Problem11_label02.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 02:32:15,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 02:32:15,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 02:32:15,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 02:32:15,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 02:32:15,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 02:32:15,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 02:32:15,993 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 02:32:15,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 02:32:16,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 02:32:16,001 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 02:32:16,004 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 02:32:16,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 02:32:16,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 02:32:16,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 02:32:16,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 02:32:16,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 02:32:16,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 02:32:16,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 02:32:16,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 02:32:16,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 02:32:16,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 02:32:16,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 02:32:16,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 02:32:16,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 02:32:16,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 02:32:16,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 02:32:16,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 02:32:16,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 02:32:16,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 02:32:16,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 02:32:16,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 02:32:16,032 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 02:32:16,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 02:32:16,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 02:32:16,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 02:32:16,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 02:32:16,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 02:32:16,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 02:32:16,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 02:32:16,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 02:32:16,037 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 [2020-10-14 02:32:16,059 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 02:32:16,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 02:32:16,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 02:32:16,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 02:32:16,061 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 02:32:16,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 02:32:16,062 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 02:32:16,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 02:32:16,062 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 02:32:16,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 02:32:16,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 02:32:16,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 02:32:16,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 02:32:16,063 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 02:32:16,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 02:32:16,064 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 02:32:16,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 02:32:16,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 02:32:16,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 02:32:16,064 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 02:32:16,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 02:32:16,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 02:32:16,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 02:32:16,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 02:32:16,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 02:32:16,066 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 02:32:16,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 02:32:16,066 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 02:32:16,066 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 02:32:16,066 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 02:32:16,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 02:32:16,424 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 02:32:16,428 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 02:32:16,429 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 02:32:16,430 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 02:32:16,431 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label02.c [2020-10-14 02:32:16,508 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d731cd848/baa10943d2284312888dada962f994c4/FLAG823dec401 [2020-10-14 02:32:17,113 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 02:32:17,114 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem11_label02.c [2020-10-14 02:32:17,129 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d731cd848/baa10943d2284312888dada962f994c4/FLAG823dec401 [2020-10-14 02:32:17,326 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d731cd848/baa10943d2284312888dada962f994c4 [2020-10-14 02:32:17,335 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 02:32:17,338 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 02:32:17,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 02:32:17,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 02:32:17,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 02:32:17,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:32:17" (1/1) ... [2020-10-14 02:32:17,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ac45341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:32:17, skipping insertion in model container [2020-10-14 02:32:17,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:32:17" (1/1) ... [2020-10-14 02:32:17,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 02:32:17,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 02:32:18,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 02:32:18,191 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 02:32:18,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 02:32:18,432 INFO L208 MainTranslator]: Completed translation [2020-10-14 02:32:18,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:32:18 WrapperNode [2020-10-14 02:32:18,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 02:32:18,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 02:32:18,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 02:32:18,434 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 02:32:18,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:32:18" (1/1) ... [2020-10-14 02:32:18,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:32:18" (1/1) ... [2020-10-14 02:32:18,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:32:18" (1/1) ... [2020-10-14 02:32:18,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:32:18" (1/1) ... [2020-10-14 02:32:18,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:32:18" (1/1) ... [2020-10-14 02:32:18,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:32:18" (1/1) ... [2020-10-14 02:32:18,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:32:18" (1/1) ... [2020-10-14 02:32:18,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 02:32:18,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 02:32:18,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 02:32:18,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 02:32:18,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:32:18" (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 [2020-10-14 02:32:18,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 02:32:18,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 02:32:18,667 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 02:32:18,667 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 02:32:18,667 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 02:32:18,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 02:32:18,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 02:32:18,668 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 02:32:18,668 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 02:32:18,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 02:32:18,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 02:32:20,353 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 02:32:20,353 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 02:32:20,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:32:20 BoogieIcfgContainer [2020-10-14 02:32:20,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 02:32:20,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 02:32:20,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 02:32:20,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 02:32:20,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:32:17" (1/3) ... [2020-10-14 02:32:20,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cdf863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:32:20, skipping insertion in model container [2020-10-14 02:32:20,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:32:18" (2/3) ... [2020-10-14 02:32:20,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cdf863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:32:20, skipping insertion in model container [2020-10-14 02:32:20,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:32:20" (3/3) ... [2020-10-14 02:32:20,371 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem11_label02.c [2020-10-14 02:32:20,383 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 02:32:20,391 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 02:32:20,408 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 02:32:20,438 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 02:32:20,438 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 02:32:20,438 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 02:32:20,438 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 02:32:20,439 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 02:32:20,439 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 02:32:20,439 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 02:32:20,439 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 02:32:20,464 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states. [2020-10-14 02:32:20,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-14 02:32:20,474 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:32:20,476 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] [2020-10-14 02:32:20,476 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:32:20,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:32:20,482 INFO L82 PathProgramCache]: Analyzing trace with hash -130901253, now seen corresponding path program 1 times [2020-10-14 02:32:20,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:32:20,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [649630892] [2020-10-14 02:32:20,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:32:20,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:32:20,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:21,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:32:21,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-14 02:32:21,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:32:21,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 526 [2020-10-14 02:32:21,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:32:21,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:32:21,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 02:32:21,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 02:32:21,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-14 02:32:21,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 02:32:21,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:32:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:32:21,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:21,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:32:21,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:32:21,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:32:21,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 02:32:21,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:32:21,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:32:21,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:32:21,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:32:21,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 02:32:21,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:32:21,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:32:21,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [649630892] [2020-10-14 02:32:21,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 02:32:21,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 02:32:21,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775565146] [2020-10-14 02:32:21,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 02:32:21,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:32:21,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 02:32:21,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 02:32:21,424 INFO L87 Difference]: Start difference. First operand 292 states. Second operand 4 states. [2020-10-14 02:32:23,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:32:23,738 INFO L93 Difference]: Finished difference Result 788 states and 1382 transitions. [2020-10-14 02:32:23,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:32:23,746 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2020-10-14 02:32:23,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:32:23,778 INFO L225 Difference]: With dead ends: 788 [2020-10-14 02:32:23,779 INFO L226 Difference]: Without dead ends: 431 [2020-10-14 02:32:23,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:32:23,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2020-10-14 02:32:23,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 425. [2020-10-14 02:32:23,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2020-10-14 02:32:23,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 612 transitions. [2020-10-14 02:32:23,869 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 612 transitions. Word has length 60 [2020-10-14 02:32:23,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:32:23,870 INFO L479 AbstractCegarLoop]: Abstraction has 425 states and 612 transitions. [2020-10-14 02:32:23,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 02:32:23,870 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 612 transitions. [2020-10-14 02:32:23,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-14 02:32:23,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:32:23,876 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:32:23,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 02:32:23,877 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:32:23,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:32:23,877 INFO L82 PathProgramCache]: Analyzing trace with hash 407759866, now seen corresponding path program 1 times [2020-10-14 02:32:23,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:32:23,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1169446821] [2020-10-14 02:32:23,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:32:23,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:32:23,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:24,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:24,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:25,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:32:25,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-14 02:32:25,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:32:25,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1735 [2020-10-14 02:32:25,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:32:25,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:32:25,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:32:25,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-14 02:32:25,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 02:32:25,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 02:32:25,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:32:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:32:25,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:25,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:32:25,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:32:25,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:32:25,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 02:32:25,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:32:25,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:32:25,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:32:25,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:32:25,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:32:25,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 02:32:25,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:32:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:32:25,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:26,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:32:26,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 02:32:26,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:32:26,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-14 02:32:26,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:32:26,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:32:26,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:32:26,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:32:26,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 02:32:26,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 02:32:26,066 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 52 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:32:26,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1169446821] [2020-10-14 02:32:26,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:32:26,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:32:26,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612378676] [2020-10-14 02:32:26,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:32:26,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:32:26,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:32:26,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:32:26,070 INFO L87 Difference]: Start difference. First operand 425 states and 612 transitions. Second operand 5 states. [2020-10-14 02:32:28,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:32:28,285 INFO L93 Difference]: Finished difference Result 1241 states and 1804 transitions. [2020-10-14 02:32:28,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:32:28,286 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2020-10-14 02:32:28,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:32:28,293 INFO L225 Difference]: With dead ends: 1241 [2020-10-14 02:32:28,293 INFO L226 Difference]: Without dead ends: 822 [2020-10-14 02:32:28,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:32:28,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2020-10-14 02:32:28,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 818. [2020-10-14 02:32:28,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2020-10-14 02:32:28,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1092 transitions. [2020-10-14 02:32:28,347 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1092 transitions. Word has length 132 [2020-10-14 02:32:28,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:32:28,348 INFO L479 AbstractCegarLoop]: Abstraction has 818 states and 1092 transitions. [2020-10-14 02:32:28,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:32:28,348 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1092 transitions. [2020-10-14 02:32:28,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-14 02:32:28,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:32:28,353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:32:28,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 02:32:28,353 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:32:28,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:32:28,354 INFO L82 PathProgramCache]: Analyzing trace with hash 187081869, now seen corresponding path program 1 times [2020-10-14 02:32:28,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:32:28,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1774722756] [2020-10-14 02:32:28,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:32:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:32:28,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:28,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:29,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:32:29,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 02:32:29,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:32:29,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1260 [2020-10-14 02:32:29,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:32:29,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:32:29,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:32:29,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-14 02:32:29,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 02:32:29,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:32:29,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:32:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:32:29,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:29,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:32:29,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:32:29,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:32:29,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:32:29,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:32:29,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:32:29,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:32:29,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:32:29,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:32:29,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 02:32:29,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:32:29,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:32:29,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:29,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:32:29,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 02:32:29,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:32:29,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 02:32:29,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:32:29,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:32:29,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:32:29,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:32:29,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 02:32:29,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:32:29,955 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 52 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:32:29,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1774722756] [2020-10-14 02:32:29,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:32:29,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:32:29,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284723644] [2020-10-14 02:32:29,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:32:29,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:32:29,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:32:29,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:32:29,958 INFO L87 Difference]: Start difference. First operand 818 states and 1092 transitions. Second operand 5 states. [2020-10-14 02:32:32,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:32:32,280 INFO L93 Difference]: Finished difference Result 2419 states and 3276 transitions. [2020-10-14 02:32:32,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:32:32,280 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2020-10-14 02:32:32,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:32:32,295 INFO L225 Difference]: With dead ends: 2419 [2020-10-14 02:32:32,295 INFO L226 Difference]: Without dead ends: 1607 [2020-10-14 02:32:32,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:32:32,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1607 states. [2020-10-14 02:32:32,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1607 to 1588. [2020-10-14 02:32:32,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1588 states. [2020-10-14 02:32:32,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 2019 transitions. [2020-10-14 02:32:32,365 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 2019 transitions. Word has length 133 [2020-10-14 02:32:32,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:32:32,368 INFO L479 AbstractCegarLoop]: Abstraction has 1588 states and 2019 transitions. [2020-10-14 02:32:32,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:32:32,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 2019 transitions. [2020-10-14 02:32:32,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-14 02:32:32,380 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:32:32,381 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:32:32,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 02:32:32,385 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:32:32,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:32:32,386 INFO L82 PathProgramCache]: Analyzing trace with hash 2003613546, now seen corresponding path program 1 times [2020-10-14 02:32:32,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:32:32,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1375047908] [2020-10-14 02:32:32,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:32:32,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:32:32,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:32,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:33,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:33,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:32:33,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 02:32:33,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:32:33,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1155 [2020-10-14 02:32:33,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:32:33,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:32:33,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:32:33,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 02:32:33,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 02:32:33,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:32:33,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:32:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:32:33,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:33,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:32:33,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:32:33,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:32:33,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:32:33,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:32:33,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:32:33,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:32:33,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:32:33,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:32:33,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:32:33,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:32:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:32:33,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:33,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:32:33,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 02:32:33,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:32:33,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 02:32:33,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:32:33,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:32:33,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:32:33,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:32:33,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 02:32:33,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:32:33,801 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 52 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:32:33,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1375047908] [2020-10-14 02:32:33,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:32:33,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:32:33,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987844865] [2020-10-14 02:32:33,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:32:33,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:32:33,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:32:33,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:32:33,805 INFO L87 Difference]: Start difference. First operand 1588 states and 2019 transitions. Second operand 5 states. [2020-10-14 02:32:36,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:32:36,217 INFO L93 Difference]: Finished difference Result 3759 states and 4916 transitions. [2020-10-14 02:32:36,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:32:36,223 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 140 [2020-10-14 02:32:36,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:32:36,236 INFO L225 Difference]: With dead ends: 3759 [2020-10-14 02:32:36,237 INFO L226 Difference]: Without dead ends: 2177 [2020-10-14 02:32:36,241 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:32:36,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2177 states. [2020-10-14 02:32:36,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2177 to 2161. [2020-10-14 02:32:36,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2161 states. [2020-10-14 02:32:36,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2161 states to 2161 states and 2739 transitions. [2020-10-14 02:32:36,308 INFO L78 Accepts]: Start accepts. Automaton has 2161 states and 2739 transitions. Word has length 140 [2020-10-14 02:32:36,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:32:36,309 INFO L479 AbstractCegarLoop]: Abstraction has 2161 states and 2739 transitions. [2020-10-14 02:32:36,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:32:36,310 INFO L276 IsEmpty]: Start isEmpty. Operand 2161 states and 2739 transitions. [2020-10-14 02:32:36,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-14 02:32:36,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:32:36,314 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:32:36,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 02:32:36,314 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:32:36,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:32:36,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1574677502, now seen corresponding path program 1 times [2020-10-14 02:32:36,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:32:36,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682681140] [2020-10-14 02:32:36,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:32:36,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:32:36,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:36,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:37,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:32:37,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-14 02:32:37,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:32:37,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 807 [2020-10-14 02:32:37,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:32:37,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:32:37,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:32:37,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-14 02:32:37,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 02:32:37,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:32:37,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:32:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:32:37,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:37,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:32:37,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:32:37,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:32:37,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:32:37,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:32:37,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:32:37,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:32:37,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:32:37,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:32:37,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:32:37,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:32:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:32:37,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:37,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:32:37,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 02:32:37,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:32:37,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 02:32:37,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:32:37,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:32:37,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:32:37,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:32:37,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 02:32:37,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:32:37,450 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 52 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:32:37,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682681140] [2020-10-14 02:32:37,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:32:37,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:32:37,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884427781] [2020-10-14 02:32:37,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:32:37,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:32:37,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:32:37,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:32:37,457 INFO L87 Difference]: Start difference. First operand 2161 states and 2739 transitions. Second operand 5 states. [2020-10-14 02:32:39,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:32:39,784 INFO L93 Difference]: Finished difference Result 4532 states and 5979 transitions. [2020-10-14 02:32:39,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:32:39,789 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2020-10-14 02:32:39,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:32:39,806 INFO L225 Difference]: With dead ends: 4532 [2020-10-14 02:32:39,806 INFO L226 Difference]: Without dead ends: 3337 [2020-10-14 02:32:39,811 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:32:39,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3337 states. [2020-10-14 02:32:39,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3337 to 3325. [2020-10-14 02:32:39,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3325 states. [2020-10-14 02:32:39,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3325 states to 3325 states and 4203 transitions. [2020-10-14 02:32:39,903 INFO L78 Accepts]: Start accepts. Automaton has 3325 states and 4203 transitions. Word has length 146 [2020-10-14 02:32:39,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:32:39,905 INFO L479 AbstractCegarLoop]: Abstraction has 3325 states and 4203 transitions. [2020-10-14 02:32:39,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:32:39,906 INFO L276 IsEmpty]: Start isEmpty. Operand 3325 states and 4203 transitions. [2020-10-14 02:32:39,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-14 02:32:39,910 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:32:39,910 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:32:39,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 02:32:39,911 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:32:39,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:32:39,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1990596462, now seen corresponding path program 1 times [2020-10-14 02:32:39,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:32:39,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [815910879] [2020-10-14 02:32:39,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:32:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:32:40,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:40,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:41,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:32:41,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 02:32:41,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:32:41,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1105 [2020-10-14 02:32:41,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:32:41,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:32:41,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:32:41,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-14 02:32:41,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 02:32:41,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:32:41,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:32:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:32:41,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:41,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:32:41,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:32:41,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:32:41,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:32:41,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:32:41,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:32:41,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:32:41,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:32:41,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:32:41,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:32:41,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:32:41,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:32:41,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:41,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:32:41,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 02:32:41,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:32:41,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 02:32:41,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:32:41,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:32:41,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:32:41,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:32:41,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 02:32:41,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:32:41,371 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 52 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:32:41,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [815910879] [2020-10-14 02:32:41,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:32:41,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 02:32:41,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911353759] [2020-10-14 02:32:41,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 02:32:41,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:32:41,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 02:32:41,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:32:41,375 INFO L87 Difference]: Start difference. First operand 3325 states and 4203 transitions. Second operand 6 states. [2020-10-14 02:32:44,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:32:44,334 INFO L93 Difference]: Finished difference Result 8789 states and 11546 transitions. [2020-10-14 02:32:44,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 02:32:44,335 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2020-10-14 02:32:44,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:32:44,367 INFO L225 Difference]: With dead ends: 8789 [2020-10-14 02:32:44,367 INFO L226 Difference]: Without dead ends: 5470 [2020-10-14 02:32:44,377 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 02:32:44,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5470 states. [2020-10-14 02:32:44,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5470 to 4665. [2020-10-14 02:32:44,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4665 states. [2020-10-14 02:32:44,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4665 states to 4665 states and 6089 transitions. [2020-10-14 02:32:44,523 INFO L78 Accepts]: Start accepts. Automaton has 4665 states and 6089 transitions. Word has length 154 [2020-10-14 02:32:44,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:32:44,523 INFO L479 AbstractCegarLoop]: Abstraction has 4665 states and 6089 transitions. [2020-10-14 02:32:44,523 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 02:32:44,524 INFO L276 IsEmpty]: Start isEmpty. Operand 4665 states and 6089 transitions. [2020-10-14 02:32:44,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-14 02:32:44,531 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:32:44,532 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:32:44,532 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 02:32:44,532 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:32:44,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:32:44,533 INFO L82 PathProgramCache]: Analyzing trace with hash -321090338, now seen corresponding path program 1 times [2020-10-14 02:32:44,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:32:44,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776222865] [2020-10-14 02:32:44,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:32:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:32:44,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:44,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:45,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:45,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:47,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:49,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:32:49,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-10-14 02:32:49,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 02:32:49,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 02:32:49,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:32:49,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:32:49,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:32:49,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 02:32:49,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 02:32:49,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:32:49,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:32:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:32:49,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:49,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:32:49,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:32:49,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:32:49,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:32:49,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:32:49,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:32:49,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:32:49,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:32:49,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:32:49,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:32:49,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:32:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:32:49,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:49,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:32:49,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 02:32:49,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:32:49,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 02:32:49,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:32:49,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:32:49,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:32:49,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:32:49,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 02:32:49,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:32:49,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 02:32:49,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:32:49,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:50,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:32:50,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 02:32:50,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:32:50,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-10-14 02:32:50,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:32:50,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:32:50,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:32:50,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:32:50,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 02:32:50,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:32:50,313 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 177 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:32:50,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1776222865] [2020-10-14 02:32:50,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:32:50,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:32:50,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047983815] [2020-10-14 02:32:50,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:32:50,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:32:50,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:32:50,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:32:50,318 INFO L87 Difference]: Start difference. First operand 4665 states and 6089 transitions. Second operand 7 states. [2020-10-14 02:32:53,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:32:53,343 INFO L93 Difference]: Finished difference Result 10381 states and 14406 transitions. [2020-10-14 02:32:53,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:32:53,344 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 217 [2020-10-14 02:32:53,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:32:53,378 INFO L225 Difference]: With dead ends: 10381 [2020-10-14 02:32:53,379 INFO L226 Difference]: Without dead ends: 7066 [2020-10-14 02:32:53,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:32:53,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7066 states. [2020-10-14 02:32:53,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7066 to 6854. [2020-10-14 02:32:53,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6854 states. [2020-10-14 02:32:53,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6854 states to 6854 states and 9114 transitions. [2020-10-14 02:32:53,583 INFO L78 Accepts]: Start accepts. Automaton has 6854 states and 9114 transitions. Word has length 217 [2020-10-14 02:32:53,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:32:53,584 INFO L479 AbstractCegarLoop]: Abstraction has 6854 states and 9114 transitions. [2020-10-14 02:32:53,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:32:53,584 INFO L276 IsEmpty]: Start isEmpty. Operand 6854 states and 9114 transitions. [2020-10-14 02:32:53,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-10-14 02:32:53,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:32:53,600 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:32:53,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 02:32:53,601 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:32:53,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:32:53,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1239460635, now seen corresponding path program 1 times [2020-10-14 02:32:53,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:32:53,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129310142] [2020-10-14 02:32:53,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:32:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:32:53,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:53,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:53,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:58,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:32:58,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-10-14 02:32:58,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:32:58,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 02:32:58,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:32:58,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:32:58,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:32:58,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-14 02:32:58,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 02:32:58,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:32:58,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:32:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:32:58,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:58,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:32:58,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:32:58,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:32:58,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:32:58,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:32:58,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:32:58,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:32:58,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:32:58,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:32:58,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:32:58,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:32:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:32:58,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:58,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:32:58,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 02:32:58,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:32:58,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 02:32:58,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:32:58,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:32:58,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:32:58,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:32:58,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 02:32:58,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:32:58,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 02:32:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:32:58,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:32:59,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:32:59,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 02:32:59,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:32:59,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-14 02:32:59,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:32:59,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:32:59,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:32:59,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:32:59,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 02:32:59,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 02:32:59,319 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 176 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:32:59,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129310142] [2020-10-14 02:32:59,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:32:59,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:32:59,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456770043] [2020-10-14 02:32:59,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:32:59,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:32:59,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:32:59,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:32:59,322 INFO L87 Difference]: Start difference. First operand 6854 states and 9114 transitions. Second operand 7 states. [2020-10-14 02:33:01,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:33:01,616 INFO L93 Difference]: Finished difference Result 13553 states and 18410 transitions. [2020-10-14 02:33:01,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 02:33:01,620 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 237 [2020-10-14 02:33:01,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:33:01,661 INFO L225 Difference]: With dead ends: 13553 [2020-10-14 02:33:01,661 INFO L226 Difference]: Without dead ends: 6705 [2020-10-14 02:33:01,678 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:33:01,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6705 states. [2020-10-14 02:33:01,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6705 to 6640. [2020-10-14 02:33:01,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6640 states. [2020-10-14 02:33:01,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6640 states to 6640 states and 8278 transitions. [2020-10-14 02:33:01,920 INFO L78 Accepts]: Start accepts. Automaton has 6640 states and 8278 transitions. Word has length 237 [2020-10-14 02:33:01,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:33:01,921 INFO L479 AbstractCegarLoop]: Abstraction has 6640 states and 8278 transitions. [2020-10-14 02:33:01,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:33:01,921 INFO L276 IsEmpty]: Start isEmpty. Operand 6640 states and 8278 transitions. [2020-10-14 02:33:01,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-10-14 02:33:01,942 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:33:01,943 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:33:01,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 02:33:01,944 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:33:01,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:33:01,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1542958884, now seen corresponding path program 1 times [2020-10-14 02:33:01,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:33:01,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1453927820] [2020-10-14 02:33:01,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:33:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:02,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:02,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:02,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 307 [2020-10-14 02:33:02,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:02,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 485 [2020-10-14 02:33:02,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:02,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:02,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:33:02,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 02:33:02,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 02:33:02,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:33:02,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:33:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:02,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:02,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:02,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:33:02,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:02,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:33:02,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:02,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:02,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:33:02,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:33:02,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:33:02,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:33:02,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:33:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:02,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:02,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:02,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 02:33:02,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:02,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-14 02:33:02,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:02,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:02,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:33:02,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:33:02,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 02:33:02,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:33:02,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 02:33:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:02,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:03,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:03,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 02:33:03,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:03,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-14 02:33:03,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:03,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:03,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:33:03,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:33:03,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 02:33:03,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:03,176 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 207 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:33:03,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1453927820] [2020-10-14 02:33:03,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:33:03,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:33:03,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354132069] [2020-10-14 02:33:03,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:33:03,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:33:03,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:33:03,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:33:03,184 INFO L87 Difference]: Start difference. First operand 6640 states and 8278 transitions. Second operand 7 states. [2020-10-14 02:33:06,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:33:06,070 INFO L93 Difference]: Finished difference Result 14474 states and 19161 transitions. [2020-10-14 02:33:06,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:33:06,071 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 295 [2020-10-14 02:33:06,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:33:06,108 INFO L225 Difference]: With dead ends: 14474 [2020-10-14 02:33:06,108 INFO L226 Difference]: Without dead ends: 7840 [2020-10-14 02:33:06,125 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:33:06,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7840 states. [2020-10-14 02:33:06,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7840 to 7656. [2020-10-14 02:33:06,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7656 states. [2020-10-14 02:33:06,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7656 states to 7656 states and 9425 transitions. [2020-10-14 02:33:06,351 INFO L78 Accepts]: Start accepts. Automaton has 7656 states and 9425 transitions. Word has length 295 [2020-10-14 02:33:06,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:33:06,352 INFO L479 AbstractCegarLoop]: Abstraction has 7656 states and 9425 transitions. [2020-10-14 02:33:06,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:33:06,352 INFO L276 IsEmpty]: Start isEmpty. Operand 7656 states and 9425 transitions. [2020-10-14 02:33:06,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2020-10-14 02:33:06,374 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:33:06,374 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:33:06,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 02:33:06,375 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:33:06,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:33:06,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1789476222, now seen corresponding path program 1 times [2020-10-14 02:33:06,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:33:06,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2038344969] [2020-10-14 02:33:06,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:33:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:06,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:06,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:08,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:08,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 373 [2020-10-14 02:33:08,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:33:08,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2508 [2020-10-14 02:33:08,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:08,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:08,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:33:08,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-14 02:33:08,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 02:33:08,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:08,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:33:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:09,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:09,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:09,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:33:09,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:09,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:33:09,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:09,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:09,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:33:09,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:33:09,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:33:09,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:09,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:33:09,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:09,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:09,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:09,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 02:33:09,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:09,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 02:33:09,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:09,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:09,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:33:09,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:33:09,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 02:33:09,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:09,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 02:33:09,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:09,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:09,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:09,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 02:33:09,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:09,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-14 02:33:09,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:09,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:09,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:33:09,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:33:09,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 02:33:09,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:09,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-14 02:33:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:09,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:09,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:09,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 02:33:09,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:09,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 02:33:09,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:09,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:09,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:33:09,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-14 02:33:09,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:33:09,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:33:09,438 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 248 proven. 103 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-14 02:33:09,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2038344969] [2020-10-14 02:33:09,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:33:09,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:33:09,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167505104] [2020-10-14 02:33:09,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:33:09,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:33:09,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:33:09,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:33:09,440 INFO L87 Difference]: Start difference. First operand 7656 states and 9425 transitions. Second operand 7 states. [2020-10-14 02:33:11,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:33:11,916 INFO L93 Difference]: Finished difference Result 19034 states and 23970 transitions. [2020-10-14 02:33:11,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:33:11,920 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 359 [2020-10-14 02:33:11,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:33:11,963 INFO L225 Difference]: With dead ends: 19034 [2020-10-14 02:33:11,963 INFO L226 Difference]: Without dead ends: 11384 [2020-10-14 02:33:11,981 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:33:11,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11384 states. [2020-10-14 02:33:12,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11384 to 11312. [2020-10-14 02:33:12,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11312 states. [2020-10-14 02:33:12,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11312 states to 11312 states and 13986 transitions. [2020-10-14 02:33:12,240 INFO L78 Accepts]: Start accepts. Automaton has 11312 states and 13986 transitions. Word has length 359 [2020-10-14 02:33:12,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:33:12,241 INFO L479 AbstractCegarLoop]: Abstraction has 11312 states and 13986 transitions. [2020-10-14 02:33:12,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:33:12,241 INFO L276 IsEmpty]: Start isEmpty. Operand 11312 states and 13986 transitions. [2020-10-14 02:33:12,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2020-10-14 02:33:12,281 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:33:12,281 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:33:12,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 02:33:12,282 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:33:12,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:33:12,282 INFO L82 PathProgramCache]: Analyzing trace with hash 40181944, now seen corresponding path program 1 times [2020-10-14 02:33:12,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:33:12,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [636018890] [2020-10-14 02:33:12,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:33:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:12,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:12,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:12,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:15,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:15,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 411 [2020-10-14 02:33:15,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:33:15,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2748 [2020-10-14 02:33:15,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:15,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:15,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:33:15,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 245 [2020-10-14 02:33:15,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 02:33:15,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:15,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:33:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:15,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:15,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:15,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:33:15,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:15,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:33:15,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:15,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:15,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:33:15,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:33:15,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:33:15,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:15,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:33:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:15,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:15,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:15,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 02:33:15,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:15,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 02:33:15,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:15,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:15,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:33:15,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:33:15,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:33:15,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:33:15,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 02:33:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:15,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:15,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:15,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 02:33:15,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:15,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 02:33:15,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:15,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:15,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:33:15,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:33:15,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 02:33:15,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:15,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-10-14 02:33:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:15,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:15,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:15,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 02:33:15,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:15,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 02:33:15,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:15,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:15,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:33:15,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:33:15,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 02:33:15,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:33:15,815 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 364 proven. 2 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2020-10-14 02:33:15,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [636018890] [2020-10-14 02:33:15,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:33:15,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:33:15,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586401082] [2020-10-14 02:33:15,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:33:15,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:33:15,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:33:15,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:33:15,821 INFO L87 Difference]: Start difference. First operand 11312 states and 13986 transitions. Second operand 7 states. [2020-10-14 02:33:19,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:33:19,127 INFO L93 Difference]: Finished difference Result 22372 states and 29878 transitions. [2020-10-14 02:33:19,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:33:19,128 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 397 [2020-10-14 02:33:19,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:33:19,207 INFO L225 Difference]: With dead ends: 22372 [2020-10-14 02:33:19,207 INFO L226 Difference]: Without dead ends: 13562 [2020-10-14 02:33:19,232 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:33:19,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13562 states. [2020-10-14 02:33:19,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13562 to 13016. [2020-10-14 02:33:19,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13016 states. [2020-10-14 02:33:19,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13016 states to 13016 states and 15975 transitions. [2020-10-14 02:33:19,606 INFO L78 Accepts]: Start accepts. Automaton has 13016 states and 15975 transitions. Word has length 397 [2020-10-14 02:33:19,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:33:19,607 INFO L479 AbstractCegarLoop]: Abstraction has 13016 states and 15975 transitions. [2020-10-14 02:33:19,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:33:19,607 INFO L276 IsEmpty]: Start isEmpty. Operand 13016 states and 15975 transitions. [2020-10-14 02:33:19,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2020-10-14 02:33:19,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:33:19,650 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:33:19,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 02:33:19,650 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:33:19,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:33:19,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1751037336, now seen corresponding path program 1 times [2020-10-14 02:33:19,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:33:19,652 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [810304507] [2020-10-14 02:33:19,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:33:19,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:19,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:20,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:20,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 416 [2020-10-14 02:33:20,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:20,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 717 [2020-10-14 02:33:20,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:20,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:20,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:33:20,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 02:33:20,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 02:33:20,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:20,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:33:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:20,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:20,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:20,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:33:20,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:20,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:33:20,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:20,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:20,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:33:20,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:33:20,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:33:20,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:20,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:33:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:20,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:20,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:20,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 02:33:20,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:20,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 02:33:20,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:20,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:20,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:33:20,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:33:20,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 02:33:20,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:20,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 02:33:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:20,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:20,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:20,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 02:33:20,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:20,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 02:33:20,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:20,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:20,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:33:20,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:33:20,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 02:33:20,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:20,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2020-10-14 02:33:20,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:20,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:20,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:20,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 02:33:20,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:20,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 02:33:20,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:20,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:20,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:33:20,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-14 02:33:20,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:33:20,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:20,984 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 267 proven. 103 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-10-14 02:33:20,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [810304507] [2020-10-14 02:33:20,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:33:20,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:33:20,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683254356] [2020-10-14 02:33:20,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:33:20,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:33:20,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:33:20,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:33:20,986 INFO L87 Difference]: Start difference. First operand 13016 states and 15975 transitions. Second operand 7 states. [2020-10-14 02:33:23,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:33:23,909 INFO L93 Difference]: Finished difference Result 29313 states and 36206 transitions. [2020-10-14 02:33:23,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:33:23,910 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 402 [2020-10-14 02:33:23,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:33:23,949 INFO L225 Difference]: With dead ends: 29313 [2020-10-14 02:33:23,949 INFO L226 Difference]: Without dead ends: 16303 [2020-10-14 02:33:23,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:33:23,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16303 states. [2020-10-14 02:33:24,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16303 to 16050. [2020-10-14 02:33:24,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16050 states. [2020-10-14 02:33:24,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16050 states to 16050 states and 19591 transitions. [2020-10-14 02:33:24,451 INFO L78 Accepts]: Start accepts. Automaton has 16050 states and 19591 transitions. Word has length 402 [2020-10-14 02:33:24,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:33:24,452 INFO L479 AbstractCegarLoop]: Abstraction has 16050 states and 19591 transitions. [2020-10-14 02:33:24,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:33:24,452 INFO L276 IsEmpty]: Start isEmpty. Operand 16050 states and 19591 transitions. [2020-10-14 02:33:24,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2020-10-14 02:33:24,504 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:33:24,505 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 02:33:24,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 02:33:24,505 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:33:24,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:33:24,506 INFO L82 PathProgramCache]: Analyzing trace with hash -2037533668, now seen corresponding path program 1 times [2020-10-14 02:33:24,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:33:24,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1592901680] [2020-10-14 02:33:24,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:33:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:24,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:25,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:25,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 425 [2020-10-14 02:33:25,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:25,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 560 [2020-10-14 02:33:25,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:25,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:25,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:33:25,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 02:33:25,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 02:33:25,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:25,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:33:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:25,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:25,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:25,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:33:25,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:25,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:33:25,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:25,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:25,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:33:25,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:33:25,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:33:25,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:25,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:33:25,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:25,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:25,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:25,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 02:33:25,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:25,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 02:33:25,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:25,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:25,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:33:25,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:33:25,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:33:25,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:25,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 02:33:25,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:25,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:25,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:25,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 02:33:25,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:25,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 02:33:25,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:25,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:25,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:33:25,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:33:25,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-14 02:33:25,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:25,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 02:33:25,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:25,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:25,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:25,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 02:33:25,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:25,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 02:33:25,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:25,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:25,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:33:25,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:33:25,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 02:33:25,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:25,784 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 366 proven. 2 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-14 02:33:25,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1592901680] [2020-10-14 02:33:25,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:33:25,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:33:25,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707642835] [2020-10-14 02:33:25,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:33:25,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:33:25,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:33:25,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:33:25,786 INFO L87 Difference]: Start difference. First operand 16050 states and 19591 transitions. Second operand 7 states. [2020-10-14 02:33:28,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:33:28,755 INFO L93 Difference]: Finished difference Result 29989 states and 38566 transitions. [2020-10-14 02:33:28,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 02:33:28,756 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 411 [2020-10-14 02:33:28,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:33:28,816 INFO L225 Difference]: With dead ends: 29989 [2020-10-14 02:33:28,817 INFO L226 Difference]: Without dead ends: 16819 [2020-10-14 02:33:28,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 02:33:28,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16819 states. [2020-10-14 02:33:29,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16819 to 16444. [2020-10-14 02:33:29,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16444 states. [2020-10-14 02:33:29,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16444 states to 16444 states and 20043 transitions. [2020-10-14 02:33:29,259 INFO L78 Accepts]: Start accepts. Automaton has 16444 states and 20043 transitions. Word has length 411 [2020-10-14 02:33:29,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:33:29,260 INFO L479 AbstractCegarLoop]: Abstraction has 16444 states and 20043 transitions. [2020-10-14 02:33:29,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:33:29,261 INFO L276 IsEmpty]: Start isEmpty. Operand 16444 states and 20043 transitions. [2020-10-14 02:33:29,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2020-10-14 02:33:29,301 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:33:29,302 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:33:29,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 02:33:29,302 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:33:29,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:33:29,302 INFO L82 PathProgramCache]: Analyzing trace with hash 259465101, now seen corresponding path program 1 times [2020-10-14 02:33:29,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:33:29,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1230241811] [2020-10-14 02:33:29,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:33:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:29,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:29,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:29,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:32,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:32,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 445 [2020-10-14 02:33:32,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:33:32,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2688 [2020-10-14 02:33:32,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:32,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:32,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:33:32,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 02:33:32,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-14 02:33:32,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:32,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:33:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:32,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:32,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:32,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:33:32,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:32,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:33:32,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:32,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:32,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:33:32,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:33:32,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:33:32,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:32,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:33:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:32,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:32,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:32,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 02:33:32,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:32,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 02:33:32,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:32,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:32,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:33:32,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:33:32,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 02:33:32,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:32,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 02:33:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:32,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:32,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:32,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 02:33:32,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:32,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-14 02:33:32,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:32,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:32,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:33:32,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:33:32,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 02:33:32,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:32,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2020-10-14 02:33:32,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:32,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:32,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:32,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 02:33:32,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:32,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 02:33:32,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:32,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:32,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:33:32,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-14 02:33:32,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:33:32,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:32,645 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 289 proven. 103 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-10-14 02:33:32,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1230241811] [2020-10-14 02:33:32,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:33:32,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:33:32,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511622281] [2020-10-14 02:33:32,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:33:32,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:33:32,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:33:32,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:33:32,647 INFO L87 Difference]: Start difference. First operand 16444 states and 20043 transitions. Second operand 7 states. [2020-10-14 02:33:35,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:33:35,874 INFO L93 Difference]: Finished difference Result 35708 states and 46479 transitions. [2020-10-14 02:33:35,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:33:35,875 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 431 [2020-10-14 02:33:35,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:33:35,952 INFO L225 Difference]: With dead ends: 35708 [2020-10-14 02:33:35,953 INFO L226 Difference]: Without dead ends: 19270 [2020-10-14 02:33:35,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:33:36,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19270 states. [2020-10-14 02:33:36,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19270 to 18737. [2020-10-14 02:33:36,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18737 states. [2020-10-14 02:33:36,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18737 states to 18737 states and 22646 transitions. [2020-10-14 02:33:36,485 INFO L78 Accepts]: Start accepts. Automaton has 18737 states and 22646 transitions. Word has length 431 [2020-10-14 02:33:36,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:33:36,485 INFO L479 AbstractCegarLoop]: Abstraction has 18737 states and 22646 transitions. [2020-10-14 02:33:36,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:33:36,486 INFO L276 IsEmpty]: Start isEmpty. Operand 18737 states and 22646 transitions. [2020-10-14 02:33:36,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2020-10-14 02:33:36,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:33:36,513 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:33:36,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 02:33:36,514 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:33:36,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:33:36,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1649152146, now seen corresponding path program 1 times [2020-10-14 02:33:36,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:33:36,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1512445738] [2020-10-14 02:33:36,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:33:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:36,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:36,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:39,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:39,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 461 [2020-10-14 02:33:39,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:33:39,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2571 [2020-10-14 02:33:39,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:39,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:39,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:33:39,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-10-14 02:33:39,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 02:33:39,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:39,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:33:39,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:39,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:39,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:39,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:33:39,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:39,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:33:39,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:39,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:39,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:33:39,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:33:39,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:33:39,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:39,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:33:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:39,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:39,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:39,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-14 02:33:39,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:39,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 02:33:39,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:39,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:39,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:33:39,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:33:39,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-14 02:33:39,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:39,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-14 02:33:39,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:39,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:39,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:39,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 02:33:39,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:39,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 02:33:39,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:39,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:39,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:33:39,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:33:39,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 02:33:39,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:39,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-10-14 02:33:39,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:39,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:39,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:39,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 02:33:39,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:39,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 02:33:39,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:39,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:39,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:33:39,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-14 02:33:39,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:33:39,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:39,786 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 267 proven. 103 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-10-14 02:33:39,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1512445738] [2020-10-14 02:33:39,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:33:39,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:33:39,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455719866] [2020-10-14 02:33:39,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:33:39,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:33:39,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:33:39,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:33:39,788 INFO L87 Difference]: Start difference. First operand 18737 states and 22646 transitions. Second operand 7 states. [2020-10-14 02:33:42,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:33:42,911 INFO L93 Difference]: Finished difference Result 39064 states and 47322 transitions. [2020-10-14 02:33:42,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:33:42,912 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 447 [2020-10-14 02:33:42,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:33:42,969 INFO L225 Difference]: With dead ends: 39064 [2020-10-14 02:33:42,969 INFO L226 Difference]: Without dead ends: 20333 [2020-10-14 02:33:42,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:33:43,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20333 states. [2020-10-14 02:33:43,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20333 to 20063. [2020-10-14 02:33:43,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20063 states. [2020-10-14 02:33:43,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20063 states to 20063 states and 24154 transitions. [2020-10-14 02:33:43,377 INFO L78 Accepts]: Start accepts. Automaton has 20063 states and 24154 transitions. Word has length 447 [2020-10-14 02:33:43,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:33:43,377 INFO L479 AbstractCegarLoop]: Abstraction has 20063 states and 24154 transitions. [2020-10-14 02:33:43,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:33:43,378 INFO L276 IsEmpty]: Start isEmpty. Operand 20063 states and 24154 transitions. [2020-10-14 02:33:43,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2020-10-14 02:33:43,403 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:33:43,403 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:33:43,403 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 02:33:43,404 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:33:43,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:33:43,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1259283550, now seen corresponding path program 1 times [2020-10-14 02:33:43,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:33:43,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2040704997] [2020-10-14 02:33:43,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:33:43,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:43,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:43,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:43,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:44,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:48,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:48,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 476 [2020-10-14 02:33:48,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 02:33:48,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-14 02:33:48,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:48,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:48,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:33:48,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 310 [2020-10-14 02:33:48,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 02:33:48,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:48,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:33:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:48,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:48,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:48,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:33:48,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:48,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:33:48,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:48,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:48,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:33:48,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:33:48,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:33:48,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:48,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:33:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:48,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:48,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:48,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 02:33:48,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:48,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 02:33:48,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:48,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:48,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:33:48,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:33:48,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:33:48,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:48,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 02:33:48,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:48,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:48,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:48,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 02:33:48,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:48,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 02:33:48,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:48,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:48,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:33:48,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:33:48,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:33:48,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:48,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-14 02:33:48,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:48,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:48,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:48,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 02:33:48,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:48,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 02:33:48,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:48,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:48,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:33:48,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:33:48,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-14 02:33:48,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:48,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2020-10-14 02:33:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:48,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:49,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:49,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 02:33:49,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:49,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-14 02:33:49,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:49,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:49,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:33:49,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:33:49,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 02:33:49,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:33:49,348 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 477 proven. 2 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2020-10-14 02:33:49,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2040704997] [2020-10-14 02:33:49,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:33:49,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 02:33:49,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155123302] [2020-10-14 02:33:49,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 02:33:49,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:33:49,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 02:33:49,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 02:33:49,351 INFO L87 Difference]: Start difference. First operand 20063 states and 24154 transitions. Second operand 8 states. [2020-10-14 02:33:53,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:33:53,267 INFO L93 Difference]: Finished difference Result 41090 states and 49487 transitions. [2020-10-14 02:33:53,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 02:33:53,268 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 460 [2020-10-14 02:33:53,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:33:53,304 INFO L225 Difference]: With dead ends: 41090 [2020-10-14 02:33:53,304 INFO L226 Difference]: Without dead ends: 20843 [2020-10-14 02:33:53,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-14 02:33:53,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20843 states. [2020-10-14 02:33:53,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20843 to 20433. [2020-10-14 02:33:53,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20433 states. [2020-10-14 02:33:53,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20433 states to 20433 states and 24268 transitions. [2020-10-14 02:33:53,697 INFO L78 Accepts]: Start accepts. Automaton has 20433 states and 24268 transitions. Word has length 460 [2020-10-14 02:33:53,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:33:53,697 INFO L479 AbstractCegarLoop]: Abstraction has 20433 states and 24268 transitions. [2020-10-14 02:33:53,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 02:33:53,698 INFO L276 IsEmpty]: Start isEmpty. Operand 20433 states and 24268 transitions. [2020-10-14 02:33:53,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2020-10-14 02:33:53,723 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:33:53,723 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 02:33:53,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 02:33:53,724 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:33:53,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:33:53,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1116818189, now seen corresponding path program 1 times [2020-10-14 02:33:53,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:33:53,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [305306229] [2020-10-14 02:33:53,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:33:53,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:53,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:53,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:54,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:54,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:54,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:58,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:58,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:58,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 519 [2020-10-14 02:33:58,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 02:33:58,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-14 02:33:58,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:58,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:58,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 02:33:58,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 351 [2020-10-14 02:33:58,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 02:33:58,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:58,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:33:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:58,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:58,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:58,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:33:58,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:58,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:33:58,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:58,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:58,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:33:58,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:33:58,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:33:58,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:58,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:33:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:58,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:58,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:58,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 02:33:58,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:58,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 02:33:58,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:58,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:58,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:33:58,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:33:58,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:33:58,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:58,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 02:33:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:58,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:58,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:58,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 02:33:58,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:58,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 02:33:58,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:58,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:58,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:33:58,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:33:58,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:33:58,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:59,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-14 02:33:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:59,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:59,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:59,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 02:33:59,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:59,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-14 02:33:59,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:59,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:59,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 02:33:59,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:33:59,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-14 02:33:59,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:59,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2020-10-14 02:33:59,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:33:59,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:33:59,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:33:59,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 02:33:59,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:33:59,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 02:33:59,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:33:59,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:33:59,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:33:59,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:33:59,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 02:33:59,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:33:59,536 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 507 proven. 2 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2020-10-14 02:33:59,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [305306229] [2020-10-14 02:33:59,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:33:59,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 02:33:59,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160962574] [2020-10-14 02:33:59,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 02:33:59,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:33:59,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 02:33:59,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-14 02:33:59,538 INFO L87 Difference]: Start difference. First operand 20433 states and 24268 transitions. Second operand 9 states. [2020-10-14 02:34:04,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:34:04,186 INFO L93 Difference]: Finished difference Result 41463 states and 49290 transitions. [2020-10-14 02:34:04,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 02:34:04,188 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 503 [2020-10-14 02:34:04,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:34:04,234 INFO L225 Difference]: With dead ends: 41463 [2020-10-14 02:34:04,234 INFO L226 Difference]: Without dead ends: 21224 [2020-10-14 02:34:04,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2020-10-14 02:34:04,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21224 states. [2020-10-14 02:34:04,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21224 to 20999. [2020-10-14 02:34:04,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20999 states. [2020-10-14 02:34:04,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20999 states to 20999 states and 24801 transitions. [2020-10-14 02:34:04,615 INFO L78 Accepts]: Start accepts. Automaton has 20999 states and 24801 transitions. Word has length 503 [2020-10-14 02:34:04,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:34:04,616 INFO L479 AbstractCegarLoop]: Abstraction has 20999 states and 24801 transitions. [2020-10-14 02:34:04,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 02:34:04,616 INFO L276 IsEmpty]: Start isEmpty. Operand 20999 states and 24801 transitions. [2020-10-14 02:34:04,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2020-10-14 02:34:04,664 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:34:04,664 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2020-10-14 02:34:04,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 02:34:04,665 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:34:04,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:34:04,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1374244670, now seen corresponding path program 1 times [2020-10-14 02:34:04,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:34:04,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [201711447] [2020-10-14 02:34:04,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:34:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:05,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:05,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:06,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:06,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:10,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:10,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 732 [2020-10-14 02:34:10,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 02:34:10,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5092 [2020-10-14 02:34:10,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:10,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:10,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:34:10,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-14 02:34:10,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 02:34:10,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:34:10,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:34:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:10,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:10,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:10,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:34:10,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:10,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:34:10,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:10,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:10,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:10,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:34:10,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:10,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:34:10,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:34:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:10,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:10,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:10,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 02:34:10,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:10,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-14 02:34:10,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:10,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:10,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:34:10,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:34:10,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 02:34:10,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:10,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 02:34:10,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:10,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:10,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:10,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 02:34:10,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:10,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-14 02:34:10,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:10,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:10,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:34:10,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:34:10,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 02:34:10,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:10,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-14 02:34:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:10,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:10,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:10,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 02:34:10,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:10,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-14 02:34:10,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:10,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:10,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:10,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-14 02:34:10,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:10,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:10,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2020-10-14 02:34:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:10,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:10,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:10,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 02:34:10,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:10,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 02:34:10,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:10,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:10,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:10,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-14 02:34:10,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:10,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:10,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2020-10-14 02:34:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:10,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:11,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:11,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 02:34:11,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:11,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 02:34:11,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:11,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:11,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:11,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 02:34:11,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:11,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:11,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 556 [2020-10-14 02:34:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:11,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:11,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:11,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 02:34:11,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:11,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 02:34:11,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:11,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:11,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:11,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-14 02:34:11,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:11,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:34:11,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1790 backedges. 417 proven. 334 refuted. 0 times theorem prover too weak. 1039 trivial. 0 not checked. [2020-10-14 02:34:11,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [201711447] [2020-10-14 02:34:11,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:34:11,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:34:11,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811399550] [2020-10-14 02:34:11,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:34:11,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:34:11,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:34:11,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:34:11,497 INFO L87 Difference]: Start difference. First operand 20999 states and 24801 transitions. Second operand 7 states. [2020-10-14 02:34:14,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:34:14,165 INFO L93 Difference]: Finished difference Result 43375 states and 51275 transitions. [2020-10-14 02:34:14,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:34:14,167 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 712 [2020-10-14 02:34:14,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:34:14,203 INFO L225 Difference]: With dead ends: 43375 [2020-10-14 02:34:14,203 INFO L226 Difference]: Without dead ends: 22570 [2020-10-14 02:34:14,221 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:34:14,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22570 states. [2020-10-14 02:34:14,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22570 to 22152. [2020-10-14 02:34:14,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22152 states. [2020-10-14 02:34:14,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22152 states to 22152 states and 26141 transitions. [2020-10-14 02:34:14,571 INFO L78 Accepts]: Start accepts. Automaton has 22152 states and 26141 transitions. Word has length 712 [2020-10-14 02:34:14,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:34:14,572 INFO L479 AbstractCegarLoop]: Abstraction has 22152 states and 26141 transitions. [2020-10-14 02:34:14,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:34:14,572 INFO L276 IsEmpty]: Start isEmpty. Operand 22152 states and 26141 transitions. [2020-10-14 02:34:14,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 723 [2020-10-14 02:34:14,607 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:34:14,609 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 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] [2020-10-14 02:34:14,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 02:34:14,610 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:34:14,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:34:14,610 INFO L82 PathProgramCache]: Analyzing trace with hash 90787598, now seen corresponding path program 1 times [2020-10-14 02:34:14,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:34:14,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [720648584] [2020-10-14 02:34:14,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:34:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:14,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:15,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:16,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:19,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:19,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 742 [2020-10-14 02:34:19,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:34:19,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-10-14 02:34:19,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:19,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:19,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 02:34:19,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 02:34:19,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 461 [2020-10-14 02:34:19,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:19,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:34:19,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:19,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:19,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:19,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:34:19,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:19,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:34:19,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:19,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:19,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:34:19,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:34:19,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 02:34:19,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:19,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:34:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:19,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:20,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:20,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 02:34:20,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:20,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-14 02:34:20,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:20,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:20,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:34:20,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:34:20,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 02:34:20,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:20,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 02:34:20,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:20,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:20,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:20,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 02:34:20,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:20,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-14 02:34:20,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:20,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:20,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 02:34:20,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:34:20,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 02:34:20,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:34:20,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-14 02:34:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:20,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:20,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:20,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:20,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:20,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 02:34:20,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:34:20,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-10-14 02:34:20,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:20,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:20,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:34:20,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:34:20,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 02:34:20,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:20,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2020-10-14 02:34:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:20,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:21,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:21,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 02:34:21,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:21,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 02:34:21,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:21,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:21,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:34:21,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:34:21,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 02:34:21,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:21,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2020-10-14 02:34:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:21,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:21,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:21,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 02:34:21,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:21,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 02:34:21,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:21,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:21,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:21,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 02:34:21,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:21,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:21,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 566 [2020-10-14 02:34:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:21,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:21,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:21,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 02:34:21,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:21,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 02:34:21,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:21,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:21,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:21,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-14 02:34:21,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:21,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:21,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1800 backedges. 715 proven. 857 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2020-10-14 02:34:21,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [720648584] [2020-10-14 02:34:21,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:34:21,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 02:34:21,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380706547] [2020-10-14 02:34:21,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 02:34:21,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:34:21,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 02:34:21,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-14 02:34:21,763 INFO L87 Difference]: Start difference. First operand 22152 states and 26141 transitions. Second operand 11 states. [2020-10-14 02:34:26,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:34:26,623 INFO L93 Difference]: Finished difference Result 45781 states and 55761 transitions. [2020-10-14 02:34:26,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 02:34:26,625 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 722 [2020-10-14 02:34:26,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:34:26,689 INFO L225 Difference]: With dead ends: 45781 [2020-10-14 02:34:26,689 INFO L226 Difference]: Without dead ends: 27651 [2020-10-14 02:34:26,715 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2020-10-14 02:34:26,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27651 states. [2020-10-14 02:34:27,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27651 to 25656. [2020-10-14 02:34:27,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25656 states. [2020-10-14 02:34:27,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25656 states to 25656 states and 30101 transitions. [2020-10-14 02:34:27,175 INFO L78 Accepts]: Start accepts. Automaton has 25656 states and 30101 transitions. Word has length 722 [2020-10-14 02:34:27,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:34:27,176 INFO L479 AbstractCegarLoop]: Abstraction has 25656 states and 30101 transitions. [2020-10-14 02:34:27,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 02:34:27,176 INFO L276 IsEmpty]: Start isEmpty. Operand 25656 states and 30101 transitions. [2020-10-14 02:34:27,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 787 [2020-10-14 02:34:27,217 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:34:27,224 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2020-10-14 02:34:27,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 02:34:27,224 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:34:27,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:34:27,225 INFO L82 PathProgramCache]: Analyzing trace with hash 581536861, now seen corresponding path program 1 times [2020-10-14 02:34:27,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:34:27,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [592666356] [2020-10-14 02:34:27,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:34:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:27,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:27,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:28,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:32,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:32,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 808 [2020-10-14 02:34:32,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:34:32,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5129 [2020-10-14 02:34:32,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:32,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:32,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:34:32,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 202 [2020-10-14 02:34:32,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 02:34:32,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:32,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:34:32,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:32,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:32,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:32,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:34:32,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:32,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:34:32,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:32,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:32,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:32,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:34:32,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:32,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:34:32,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:34:32,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:32,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:32,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:32,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 02:34:32,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:32,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 02:34:32,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:32,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:32,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:32,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:34:32,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:32,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:32,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 02:34:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:32,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:32,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:32,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 02:34:32,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:32,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 02:34:32,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:32,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:32,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:34:32,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:34:32,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 02:34:32,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:32,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-14 02:34:32,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:32,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:32,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:32,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 02:34:32,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:32,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 02:34:32,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:32,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:32,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:34:32,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:34:32,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 02:34:32,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:32,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2020-10-14 02:34:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:32,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:32,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:32,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 02:34:32,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:32,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 02:34:32,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:32,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:32,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:32,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-14 02:34:32,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:32,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:32,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2020-10-14 02:34:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:33,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:33,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:33,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 02:34:33,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:33,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 02:34:33,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:33,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:33,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:33,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-14 02:34:33,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:33,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:34:33,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2020-10-14 02:34:33,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:33,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:33,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:33,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 02:34:33,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:33,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 02:34:33,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:33,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:33,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:33,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 02:34:33,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:33,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:33,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 630 [2020-10-14 02:34:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:33,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:33,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:33,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 02:34:33,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:33,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 02:34:33,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:33,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:33,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:33,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-14 02:34:33,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:33,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:33,719 INFO L134 CoverageAnalysis]: Checked inductivity of 2287 backedges. 562 proven. 334 refuted. 0 times theorem prover too weak. 1391 trivial. 0 not checked. [2020-10-14 02:34:33,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [592666356] [2020-10-14 02:34:33,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:34:33,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:34:33,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125775890] [2020-10-14 02:34:33,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:34:33,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:34:33,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:34:33,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:34:33,721 INFO L87 Difference]: Start difference. First operand 25656 states and 30101 transitions. Second operand 7 states. [2020-10-14 02:34:38,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:34:38,075 INFO L93 Difference]: Finished difference Result 48761 states and 57334 transitions. [2020-10-14 02:34:38,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:34:38,076 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 786 [2020-10-14 02:34:38,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:34:38,126 INFO L225 Difference]: With dead ends: 48761 [2020-10-14 02:34:38,126 INFO L226 Difference]: Without dead ends: 29081 [2020-10-14 02:34:38,149 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:34:38,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29081 states. [2020-10-14 02:34:38,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29081 to 26967. [2020-10-14 02:34:38,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26967 states. [2020-10-14 02:34:38,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26967 states to 26967 states and 31394 transitions. [2020-10-14 02:34:38,490 INFO L78 Accepts]: Start accepts. Automaton has 26967 states and 31394 transitions. Word has length 786 [2020-10-14 02:34:38,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:34:38,491 INFO L479 AbstractCegarLoop]: Abstraction has 26967 states and 31394 transitions. [2020-10-14 02:34:38,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:34:38,491 INFO L276 IsEmpty]: Start isEmpty. Operand 26967 states and 31394 transitions. [2020-10-14 02:34:38,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 823 [2020-10-14 02:34:38,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:34:38,537 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:34:38,537 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 02:34:38,538 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:34:38,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:34:38,539 INFO L82 PathProgramCache]: Analyzing trace with hash -168672626, now seen corresponding path program 1 times [2020-10-14 02:34:38,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:34:38,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1656554335] [2020-10-14 02:34:38,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:34:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:38,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:38,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:42,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:42,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 844 [2020-10-14 02:34:42,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:34:42,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3779 [2020-10-14 02:34:42,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:42,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:42,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:34:42,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-14 02:34:42,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 02:34:42,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:42,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:34:42,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:42,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:42,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:42,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:34:42,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:42,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:34:42,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:42,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:42,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:42,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:34:42,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:42,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:42,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:34:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:42,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:42,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:42,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 02:34:42,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:42,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 02:34:42,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:42,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:42,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:34:42,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:34:42,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 02:34:42,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:42,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 02:34:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:42,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:42,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:42,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 02:34:42,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:42,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-14 02:34:42,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:42,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:42,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:34:42,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:34:42,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 02:34:42,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:42,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-14 02:34:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:42,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:43,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:43,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 02:34:43,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:43,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 02:34:43,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:43,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:43,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:43,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 02:34:43,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:43,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:34:43,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2020-10-14 02:34:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:43,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:43,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:43,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 02:34:43,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:43,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 02:34:43,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:43,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:43,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:43,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-14 02:34:43,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:43,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:34:43,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2020-10-14 02:34:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:43,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:43,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:43,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 02:34:43,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:43,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 02:34:43,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:43,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:43,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:43,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-14 02:34:43,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:43,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:43,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2020-10-14 02:34:43,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:43,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:43,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:43,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 02:34:43,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:43,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 02:34:43,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:43,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:43,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:43,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 02:34:43,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:43,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:34:43,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 666 [2020-10-14 02:34:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:43,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:43,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:43,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 02:34:43,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:43,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 02:34:43,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:43,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:43,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:43,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-14 02:34:43,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:43,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:43,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2460 backedges. 498 proven. 494 refuted. 0 times theorem prover too weak. 1468 trivial. 0 not checked. [2020-10-14 02:34:43,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1656554335] [2020-10-14 02:34:43,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:34:43,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:34:43,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878052401] [2020-10-14 02:34:43,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:34:43,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:34:43,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:34:43,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:34:43,981 INFO L87 Difference]: Start difference. First operand 26967 states and 31394 transitions. Second operand 7 states. [2020-10-14 02:34:46,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:34:46,961 INFO L93 Difference]: Finished difference Result 47625 states and 55466 transitions. [2020-10-14 02:34:46,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 02:34:46,962 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 822 [2020-10-14 02:34:46,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:34:47,010 INFO L225 Difference]: With dead ends: 47625 [2020-10-14 02:34:47,011 INFO L226 Difference]: Without dead ends: 27010 [2020-10-14 02:34:47,033 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 02:34:47,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27010 states. [2020-10-14 02:34:47,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27010 to 26969. [2020-10-14 02:34:47,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26969 states. [2020-10-14 02:34:47,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26969 states to 26969 states and 31367 transitions. [2020-10-14 02:34:47,362 INFO L78 Accepts]: Start accepts. Automaton has 26969 states and 31367 transitions. Word has length 822 [2020-10-14 02:34:47,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:34:47,362 INFO L479 AbstractCegarLoop]: Abstraction has 26969 states and 31367 transitions. [2020-10-14 02:34:47,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:34:47,363 INFO L276 IsEmpty]: Start isEmpty. Operand 26969 states and 31367 transitions. [2020-10-14 02:34:47,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 824 [2020-10-14 02:34:47,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:34:47,393 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 3, 3, 3, 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] [2020-10-14 02:34:47,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 02:34:47,394 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:34:47,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:34:47,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1357406434, now seen corresponding path program 1 times [2020-10-14 02:34:47,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:34:47,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1122023250] [2020-10-14 02:34:47,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:34:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:47,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:47,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:48,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:48,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 845 [2020-10-14 02:34:48,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:34:48,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1297 [2020-10-14 02:34:48,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:48,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:48,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:34:48,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 239 [2020-10-14 02:34:48,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 02:34:48,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:48,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:34:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:48,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:48,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:48,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:34:48,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:48,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:34:48,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:48,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:48,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:48,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:34:48,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:48,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:48,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:34:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:48,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:48,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:48,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 02:34:48,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:48,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 02:34:48,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:48,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:48,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:48,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:34:48,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:48,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:48,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 02:34:48,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:48,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:49,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:49,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 02:34:49,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:49,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 02:34:49,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:49,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:49,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:34:49,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:34:49,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 02:34:49,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:49,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-10-14 02:34:49,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:49,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:49,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:49,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 02:34:49,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:49,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 02:34:49,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:49,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:49,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:34:49,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:34:49,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 02:34:49,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:49,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2020-10-14 02:34:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:49,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:49,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:49,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 02:34:49,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:49,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 02:34:49,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:49,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:49,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:49,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-14 02:34:49,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:49,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:49,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2020-10-14 02:34:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:49,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:49,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:49,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 02:34:49,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:49,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 02:34:49,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:49,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:49,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:49,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-14 02:34:49,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:49,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:49,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 560 [2020-10-14 02:34:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:49,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:49,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:49,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 02:34:49,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:49,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 02:34:49,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:49,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:49,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:49,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 02:34:49,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:49,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:49,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 667 [2020-10-14 02:34:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:49,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:49,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:49,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 02:34:49,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:49,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 02:34:49,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:49,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:49,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:49,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-14 02:34:49,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:49,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:49,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2443 backedges. 574 proven. 334 refuted. 0 times theorem prover too weak. 1535 trivial. 0 not checked. [2020-10-14 02:34:49,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1122023250] [2020-10-14 02:34:49,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:34:49,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:34:49,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572283225] [2020-10-14 02:34:49,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:34:49,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:34:49,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:34:49,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:34:49,963 INFO L87 Difference]: Start difference. First operand 26969 states and 31367 transitions. Second operand 7 states. [2020-10-14 02:34:53,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:34:53,785 INFO L93 Difference]: Finished difference Result 50186 states and 58825 transitions. [2020-10-14 02:34:53,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:34:53,788 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 823 [2020-10-14 02:34:53,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:34:53,841 INFO L225 Difference]: With dead ends: 50186 [2020-10-14 02:34:53,841 INFO L226 Difference]: Without dead ends: 29581 [2020-10-14 02:34:53,863 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:34:53,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29581 states. [2020-10-14 02:34:54,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29581 to 27349. [2020-10-14 02:34:54,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27349 states. [2020-10-14 02:34:54,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27349 states to 27349 states and 31707 transitions. [2020-10-14 02:34:54,217 INFO L78 Accepts]: Start accepts. Automaton has 27349 states and 31707 transitions. Word has length 823 [2020-10-14 02:34:54,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:34:54,218 INFO L479 AbstractCegarLoop]: Abstraction has 27349 states and 31707 transitions. [2020-10-14 02:34:54,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:34:54,218 INFO L276 IsEmpty]: Start isEmpty. Operand 27349 states and 31707 transitions. [2020-10-14 02:34:54,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 833 [2020-10-14 02:34:54,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:34:54,244 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 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] [2020-10-14 02:34:54,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 02:34:54,245 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:34:54,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:34:54,245 INFO L82 PathProgramCache]: Analyzing trace with hash 506682330, now seen corresponding path program 1 times [2020-10-14 02:34:54,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:34:54,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1870810393] [2020-10-14 02:34:54,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:34:54,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:54,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:54,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:58,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:58,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 854 [2020-10-14 02:34:58,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:34:58,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4304 [2020-10-14 02:34:58,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:58,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:58,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:34:58,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-14 02:34:58,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 02:34:58,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:58,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:34:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:58,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:58,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:58,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:34:58,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:58,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:34:58,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:58,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:58,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:58,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:34:58,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:58,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:58,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:34:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:58,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:58,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:58,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 02:34:58,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:58,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 02:34:58,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:58,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:58,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:34:58,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:34:58,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-14 02:34:58,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:34:58,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 02:34:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:58,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:58,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:58,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 02:34:58,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:58,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 02:34:58,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:58,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:58,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:34:58,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:34:58,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 02:34:58,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:59,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-10-14 02:34:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:59,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:59,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:59,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 02:34:59,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:59,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 02:34:59,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:59,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 02:34:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:59,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:59,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2020-10-14 02:34:59,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:59,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:59,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:59,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 02:34:59,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:59,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 02:34:59,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:59,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:59,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:59,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-14 02:34:59,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:59,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:59,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2020-10-14 02:34:59,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:59,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:59,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:59,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 02:34:59,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:59,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 02:34:59,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:59,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:59,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:59,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-14 02:34:59,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:59,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:59,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 569 [2020-10-14 02:34:59,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:59,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:59,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:59,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 02:34:59,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:59,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 02:34:59,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:59,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:59,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:59,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 02:34:59,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:59,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:59,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-14 02:34:59,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:34:59,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:34:59,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:34:59,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 02:34:59,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:34:59,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 02:34:59,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:34:59,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:34:59,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:34:59,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-14 02:34:59,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:34:59,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:34:59,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2470 backedges. 498 proven. 494 refuted. 0 times theorem prover too weak. 1478 trivial. 0 not checked. [2020-10-14 02:34:59,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1870810393] [2020-10-14 02:34:59,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:34:59,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:34:59,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069701611] [2020-10-14 02:34:59,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:34:59,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:34:59,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:34:59,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:34:59,801 INFO L87 Difference]: Start difference. First operand 27349 states and 31707 transitions. Second operand 7 states. [2020-10-14 02:35:03,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:35:03,026 INFO L93 Difference]: Finished difference Result 49146 states and 56986 transitions. [2020-10-14 02:35:03,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 02:35:03,028 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 832 [2020-10-14 02:35:03,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:35:03,079 INFO L225 Difference]: With dead ends: 49146 [2020-10-14 02:35:03,079 INFO L226 Difference]: Without dead ends: 28139 [2020-10-14 02:35:03,103 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 02:35:03,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28139 states. [2020-10-14 02:35:03,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28139 to 26195. [2020-10-14 02:35:03,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26195 states. [2020-10-14 02:35:03,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26195 states to 26195 states and 30196 transitions. [2020-10-14 02:35:03,425 INFO L78 Accepts]: Start accepts. Automaton has 26195 states and 30196 transitions. Word has length 832 [2020-10-14 02:35:03,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:35:03,425 INFO L479 AbstractCegarLoop]: Abstraction has 26195 states and 30196 transitions. [2020-10-14 02:35:03,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:35:03,425 INFO L276 IsEmpty]: Start isEmpty. Operand 26195 states and 30196 transitions. [2020-10-14 02:35:03,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 836 [2020-10-14 02:35:03,452 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:35:03,452 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:35:03,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 02:35:03,453 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:35:03,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:35:03,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1322577726, now seen corresponding path program 1 times [2020-10-14 02:35:03,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:35:03,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [761312264] [2020-10-14 02:35:03,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:35:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:03,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:03,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:07,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:07,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 857 [2020-10-14 02:35:07,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:35:07,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4280 [2020-10-14 02:35:07,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:07,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:07,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:35:07,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 02:35:07,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 02:35:07,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:07,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:35:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:07,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:07,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:07,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:35:07,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:07,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:35:07,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:07,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:07,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:35:07,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:35:07,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:35:07,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:07,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:35:07,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:07,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:07,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:07,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 02:35:07,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:07,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 02:35:07,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:07,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:07,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:35:07,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:35:07,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 02:35:07,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:08,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 02:35:08,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:08,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:08,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:08,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-14 02:35:08,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:08,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 02:35:08,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:08,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:08,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:35:08,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:35:08,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 02:35:08,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:08,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 02:35:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:08,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:08,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:08,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 02:35:08,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:08,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 02:35:08,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:08,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:08,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:35:08,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 02:35:08,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:35:08,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:08,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2020-10-14 02:35:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:08,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:08,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:08,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 02:35:08,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:08,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 02:35:08,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:08,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:08,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:35:08,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-14 02:35:08,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:35:08,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:08,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 02:35:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:08,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:08,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:08,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 02:35:08,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:08,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 02:35:08,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:08,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:08,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:35:08,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-14 02:35:08,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:35:08,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:08,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 572 [2020-10-14 02:35:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:08,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:08,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:08,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 02:35:08,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:08,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 02:35:08,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:08,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:08,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:35:08,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 02:35:08,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:35:08,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:08,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2020-10-14 02:35:08,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:08,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:08,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:08,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 02:35:08,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:08,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 02:35:08,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:08,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:08,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:35:08,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-14 02:35:08,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:35:08,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:08,744 INFO L134 CoverageAnalysis]: Checked inductivity of 2469 backedges. 496 proven. 492 refuted. 0 times theorem prover too weak. 1481 trivial. 0 not checked. [2020-10-14 02:35:08,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [761312264] [2020-10-14 02:35:08,745 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:35:08,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:35:08,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102101408] [2020-10-14 02:35:08,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:35:08,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:35:08,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:35:08,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:35:08,747 INFO L87 Difference]: Start difference. First operand 26195 states and 30196 transitions. Second operand 7 states. [2020-10-14 02:35:12,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:35:12,888 INFO L93 Difference]: Finished difference Result 51480 states and 59347 transitions. [2020-10-14 02:35:12,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:35:12,889 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 835 [2020-10-14 02:35:12,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:35:12,937 INFO L225 Difference]: With dead ends: 51480 [2020-10-14 02:35:12,937 INFO L226 Difference]: Without dead ends: 25479 [2020-10-14 02:35:12,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:35:12,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25479 states. [2020-10-14 02:35:13,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25479 to 25049. [2020-10-14 02:35:13,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25049 states. [2020-10-14 02:35:13,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25049 states to 25049 states and 28673 transitions. [2020-10-14 02:35:13,253 INFO L78 Accepts]: Start accepts. Automaton has 25049 states and 28673 transitions. Word has length 835 [2020-10-14 02:35:13,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:35:13,254 INFO L479 AbstractCegarLoop]: Abstraction has 25049 states and 28673 transitions. [2020-10-14 02:35:13,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:35:13,254 INFO L276 IsEmpty]: Start isEmpty. Operand 25049 states and 28673 transitions. [2020-10-14 02:35:13,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 854 [2020-10-14 02:35:13,280 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:35:13,281 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:35:13,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 02:35:13,281 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:35:13,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:35:13,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1299839287, now seen corresponding path program 1 times [2020-10-14 02:35:13,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:35:13,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993828518] [2020-10-14 02:35:13,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:35:13,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:13,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:13,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:16,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:16,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 875 [2020-10-14 02:35:16,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:35:16,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3325 [2020-10-14 02:35:16,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:16,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:16,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:35:16,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-10-14 02:35:16,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 02:35:16,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:16,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:35:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:16,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:16,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:16,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:35:16,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:16,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:35:16,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:16,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:16,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:35:16,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:35:16,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:35:16,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:16,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:35:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:16,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:16,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:16,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-14 02:35:16,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:16,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 02:35:16,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:16,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:16,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:35:16,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:35:16,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-14 02:35:16,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:16,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-14 02:35:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:16,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:17,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:17,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 02:35:17,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:17,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-14 02:35:17,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:17,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:17,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:35:17,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:35:17,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 02:35:17,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:17,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2020-10-14 02:35:17,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:17,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:17,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:17,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 02:35:17,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:17,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 02:35:17,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:17,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:17,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:35:17,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 02:35:17,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:35:17,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:17,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2020-10-14 02:35:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:17,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:17,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:17,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 02:35:17,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:17,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 02:35:17,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:17,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:17,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:35:17,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-14 02:35:17,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:35:17,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:17,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2020-10-14 02:35:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:17,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:17,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:17,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 02:35:17,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:17,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 02:35:17,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:17,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:17,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:35:17,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-14 02:35:17,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:35:17,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:17,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 590 [2020-10-14 02:35:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:17,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:17,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:17,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 02:35:17,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:17,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 02:35:17,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:17,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:17,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:35:17,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 02:35:17,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:35:17,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:17,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 697 [2020-10-14 02:35:17,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:17,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:17,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:17,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 02:35:17,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:17,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 02:35:17,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:17,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:17,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:35:17,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-14 02:35:17,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:35:17,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:17,817 INFO L134 CoverageAnalysis]: Checked inductivity of 2479 backedges. 498 proven. 494 refuted. 0 times theorem prover too weak. 1487 trivial. 0 not checked. [2020-10-14 02:35:17,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1993828518] [2020-10-14 02:35:17,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:35:17,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:35:17,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881855937] [2020-10-14 02:35:17,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:35:17,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:35:17,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:35:17,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:35:17,820 INFO L87 Difference]: Start difference. First operand 25049 states and 28673 transitions. Second operand 7 states. [2020-10-14 02:35:21,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:35:21,373 INFO L93 Difference]: Finished difference Result 45761 states and 54058 transitions. [2020-10-14 02:35:21,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 02:35:21,374 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 853 [2020-10-14 02:35:21,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:35:21,440 INFO L225 Difference]: With dead ends: 45761 [2020-10-14 02:35:21,440 INFO L226 Difference]: Without dead ends: 26108 [2020-10-14 02:35:21,462 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 02:35:21,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26108 states. [2020-10-14 02:35:21,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26108 to 25241. [2020-10-14 02:35:21,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25241 states. [2020-10-14 02:35:22,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25241 states to 25241 states and 28801 transitions. [2020-10-14 02:35:22,038 INFO L78 Accepts]: Start accepts. Automaton has 25241 states and 28801 transitions. Word has length 853 [2020-10-14 02:35:22,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:35:22,039 INFO L479 AbstractCegarLoop]: Abstraction has 25241 states and 28801 transitions. [2020-10-14 02:35:22,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:35:22,039 INFO L276 IsEmpty]: Start isEmpty. Operand 25241 states and 28801 transitions. [2020-10-14 02:35:22,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 878 [2020-10-14 02:35:22,062 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:35:22,063 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:35:22,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 02:35:22,063 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:35:22,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:35:22,064 INFO L82 PathProgramCache]: Analyzing trace with hash 497210891, now seen corresponding path program 1 times [2020-10-14 02:35:22,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:35:22,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921776361] [2020-10-14 02:35:22,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:35:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:22,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:22,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:22,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:27,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:27,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 899 [2020-10-14 02:35:27,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:35:27,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5098 [2020-10-14 02:35:27,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:27,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:27,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:35:27,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-10-14 02:35:27,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 02:35:27,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:27,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:35:27,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:27,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:27,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:27,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:35:27,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:27,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:35:27,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:27,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:27,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:35:27,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:35:27,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:35:27,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:27,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:35:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:27,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:27,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:27,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-14 02:35:27,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:27,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-14 02:35:27,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:27,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:27,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:35:27,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:35:27,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 02:35:27,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:35:27,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-14 02:35:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:27,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:27,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:27,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 02:35:27,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:27,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-10-14 02:35:28,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:28,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:28,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:35:28,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:35:28,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 02:35:28,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:35:28,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2020-10-14 02:35:28,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:28,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:28,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:28,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 02:35:28,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:28,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 02:35:28,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:28,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:28,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:35:28,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 02:35:28,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:35:28,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:35:28,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2020-10-14 02:35:28,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:28,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:28,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:28,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 02:35:28,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:28,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 02:35:28,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:28,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:28,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:35:28,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-14 02:35:28,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:35:28,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:28,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2020-10-14 02:35:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:28,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:28,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:28,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 02:35:28,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:28,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 02:35:28,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:28,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:28,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:35:28,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-14 02:35:28,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:35:28,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:28,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 614 [2020-10-14 02:35:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:28,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:28,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:28,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 02:35:28,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:28,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 02:35:28,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:28,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:28,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:35:28,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 02:35:28,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:35:28,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:28,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 721 [2020-10-14 02:35:28,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:28,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:28,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:28,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 02:35:28,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:28,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 02:35:28,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:28,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:28,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:35:28,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-14 02:35:28,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:35:28,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:28,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2479 backedges. 498 proven. 494 refuted. 0 times theorem prover too weak. 1487 trivial. 0 not checked. [2020-10-14 02:35:28,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921776361] [2020-10-14 02:35:28,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:35:28,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:35:28,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997166139] [2020-10-14 02:35:28,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:35:28,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:35:28,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:35:28,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:35:28,974 INFO L87 Difference]: Start difference. First operand 25241 states and 28801 transitions. Second operand 7 states. [2020-10-14 02:35:32,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:35:32,353 INFO L93 Difference]: Finished difference Result 45136 states and 51578 transitions. [2020-10-14 02:35:32,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:35:32,354 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 877 [2020-10-14 02:35:32,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:35:32,398 INFO L225 Difference]: With dead ends: 45136 [2020-10-14 02:35:32,398 INFO L226 Difference]: Without dead ends: 25283 [2020-10-14 02:35:32,420 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 02:35:32,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25283 states. [2020-10-14 02:35:32,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25283 to 25039. [2020-10-14 02:35:32,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25039 states. [2020-10-14 02:35:32,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25039 states to 25039 states and 28558 transitions. [2020-10-14 02:35:32,712 INFO L78 Accepts]: Start accepts. Automaton has 25039 states and 28558 transitions. Word has length 877 [2020-10-14 02:35:32,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:35:32,712 INFO L479 AbstractCegarLoop]: Abstraction has 25039 states and 28558 transitions. [2020-10-14 02:35:32,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:35:32,712 INFO L276 IsEmpty]: Start isEmpty. Operand 25039 states and 28558 transitions. [2020-10-14 02:35:32,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 887 [2020-10-14 02:35:32,738 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:35:32,738 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:35:32,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 02:35:32,739 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:35:32,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:35:32,739 INFO L82 PathProgramCache]: Analyzing trace with hash 2102897144, now seen corresponding path program 1 times [2020-10-14 02:35:32,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:35:32,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [950526774] [2020-10-14 02:35:32,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:35:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:32,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:32,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:33,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:37,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:37,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 908 [2020-10-14 02:35:37,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:35:37,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4338 [2020-10-14 02:35:37,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:37,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:35:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-10-14 02:35:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-14 02:35:37,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:37,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:35:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:37,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:37,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:37,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:35:37,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:37,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:35:37,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:37,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:37,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:35:37,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:35:37,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:35:37,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:35:37,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:35:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:37,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:37,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:37,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-14 02:35:37,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:37,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-14 02:35:37,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:37,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:37,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:35:37,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:35:37,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-14 02:35:37,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:35:37,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-14 02:35:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:37,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:37,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:37,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 02:35:37,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:37,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 298 [2020-10-14 02:35:37,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:37,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:37,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:35:37,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:35:37,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-14 02:35:37,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:35:38,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2020-10-14 02:35:38,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:38,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:38,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:38,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 02:35:38,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:38,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 02:35:38,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:38,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:38,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:35:38,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 02:35:38,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:35:38,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:35:38,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2020-10-14 02:35:38,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:38,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:38,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:38,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 02:35:38,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:38,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 02:35:38,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:38,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:38,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:35:38,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-14 02:35:38,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:35:38,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:35:38,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-14 02:35:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:38,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:38,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:38,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 02:35:38,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:38,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 02:35:38,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:38,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:38,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:35:38,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-14 02:35:38,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:35:38,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:38,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2020-10-14 02:35:38,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:38,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:38,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:38,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 02:35:38,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:38,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 02:35:38,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:38,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:35:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 02:35:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:35:38,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:35:38,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 730 [2020-10-14 02:35:38,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:38,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:38,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:38,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 02:35:38,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:38,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 02:35:38,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:38,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:38,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:35:38,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-14 02:35:38,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:35:38,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:35:38,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2537 backedges. 531 proven. 519 refuted. 0 times theorem prover too weak. 1487 trivial. 0 not checked. [2020-10-14 02:35:38,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [950526774] [2020-10-14 02:35:38,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:35:38,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:35:38,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675627094] [2020-10-14 02:35:38,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:35:38,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:35:38,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:35:38,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:35:38,973 INFO L87 Difference]: Start difference. First operand 25039 states and 28558 transitions. Second operand 7 states. [2020-10-14 02:35:43,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:35:43,486 INFO L93 Difference]: Finished difference Result 50689 states and 57777 transitions. [2020-10-14 02:35:43,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:35:43,487 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 886 [2020-10-14 02:35:43,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:35:43,534 INFO L225 Difference]: With dead ends: 50689 [2020-10-14 02:35:43,534 INFO L226 Difference]: Without dead ends: 25844 [2020-10-14 02:35:43,560 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:35:43,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25844 states. [2020-10-14 02:35:43,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25844 to 25221. [2020-10-14 02:35:43,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25221 states. [2020-10-14 02:35:43,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25221 states to 25221 states and 28589 transitions. [2020-10-14 02:35:43,855 INFO L78 Accepts]: Start accepts. Automaton has 25221 states and 28589 transitions. Word has length 886 [2020-10-14 02:35:43,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:35:43,855 INFO L479 AbstractCegarLoop]: Abstraction has 25221 states and 28589 transitions. [2020-10-14 02:35:43,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:35:43,856 INFO L276 IsEmpty]: Start isEmpty. Operand 25221 states and 28589 transitions. [2020-10-14 02:35:43,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 892 [2020-10-14 02:35:43,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:35:43,881 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:35:43,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-14 02:35:43,881 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:35:43,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:35:43,882 INFO L82 PathProgramCache]: Analyzing trace with hash 127684954, now seen corresponding path program 1 times [2020-10-14 02:35:43,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:35:43,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1673462253] [2020-10-14 02:35:43,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:35:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:44,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:44,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking...