/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=0.6 --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 language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label16.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 13:03:03,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 13:03:03,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 13:03:03,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 13:03:03,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 13:03:03,348 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 13:03:03,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 13:03:03,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 13:03:03,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 13:03:03,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 13:03:03,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 13:03:03,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 13:03:03,369 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 13:03:03,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 13:03:03,375 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 13:03:03,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 13:03:03,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 13:03:03,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 13:03:03,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 13:03:03,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 13:03:03,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 13:03:03,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 13:03:03,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 13:03:03,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 13:03:03,414 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 13:03:03,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 13:03:03,415 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 13:03:03,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 13:03:03,417 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 13:03:03,418 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 13:03:03,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 13:03:03,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 13:03:03,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 13:03:03,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 13:03:03,423 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 13:03:03,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 13:03:03,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 13:03:03,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 13:03:03,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 13:03:03,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 13:03:03,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 13:03:03,428 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 [2020-10-28 13:03:03,467 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 13:03:03,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 13:03:03,469 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 13:03:03,469 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 13:03:03,469 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 13:03:03,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 13:03:03,470 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 13:03:03,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 13:03:03,470 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 13:03:03,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 13:03:03,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 13:03:03,471 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 13:03:03,471 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 13:03:03,471 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 13:03:03,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 13:03:03,471 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 13:03:03,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 13:03:03,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 13:03:03,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 13:03:03,472 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 13:03:03,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 13:03:03,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 13:03:03,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 13:03:03,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 13:03:03,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 13:03:03,473 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 13:03:03,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 13:03:03,474 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 13:03:03,474 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 13:03:03,474 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 13:03:03,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 13:03:03,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 13:03:03,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 13:03:03,907 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 13:03:03,908 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 13:03:03,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label16.c [2020-10-28 13:03:03,998 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/81988e2a3/c4454742e3c8457cbb24091840ff4abd/FLAG7b2b87e6e [2020-10-28 13:03:05,058 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 13:03:05,059 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem15_label16.c [2020-10-28 13:03:05,087 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/81988e2a3/c4454742e3c8457cbb24091840ff4abd/FLAG7b2b87e6e [2020-10-28 13:03:05,131 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/81988e2a3/c4454742e3c8457cbb24091840ff4abd [2020-10-28 13:03:05,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 13:03:05,145 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 13:03:05,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 13:03:05,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 13:03:05,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 13:03:05,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 01:03:05" (1/1) ... [2020-10-28 13:03:05,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aee82ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:03:05, skipping insertion in model container [2020-10-28 13:03:05,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 01:03:05" (1/1) ... [2020-10-28 13:03:05,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 13:03:05,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 13:03:06,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 13:03:06,317 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 13:03:06,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 13:03:06,722 INFO L208 MainTranslator]: Completed translation [2020-10-28 13:03:06,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:03:06 WrapperNode [2020-10-28 13:03:06,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 13:03:06,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 13:03:06,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 13:03:06,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 13:03:06,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:03:06" (1/1) ... [2020-10-28 13:03:06,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:03:06" (1/1) ... [2020-10-28 13:03:06,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:03:06" (1/1) ... [2020-10-28 13:03:06,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:03:06" (1/1) ... [2020-10-28 13:03:06,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:03:06" (1/1) ... [2020-10-28 13:03:06,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:03:06" (1/1) ... [2020-10-28 13:03:06,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:03:06" (1/1) ... [2020-10-28 13:03:06,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 13:03:06,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 13:03:06,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 13:03:06,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 13:03:06,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:03:06" (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 [2020-10-28 13:03:07,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 13:03:07,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 13:03:07,041 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 13:03:07,042 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 13:03:07,042 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-28 13:03:07,043 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 13:03:07,043 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 13:03:07,043 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-28 13:03:07,044 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 13:03:07,044 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 13:03:07,045 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 13:03:07,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 13:03:07,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 13:03:07,045 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 13:03:07,046 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 13:03:07,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 13:03:07,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 13:03:07,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 13:03:07,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 13:03:07,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 13:03:07,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 13:03:10,331 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 13:03:10,331 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 13:03:10,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 01:03:10 BoogieIcfgContainer [2020-10-28 13:03:10,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 13:03:10,338 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 13:03:10,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 13:03:10,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 13:03:10,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 01:03:05" (1/3) ... [2020-10-28 13:03:10,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1564ad66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 01:03:10, skipping insertion in model container [2020-10-28 13:03:10,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:03:06" (2/3) ... [2020-10-28 13:03:10,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1564ad66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 01:03:10, skipping insertion in model container [2020-10-28 13:03:10,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 01:03:10" (3/3) ... [2020-10-28 13:03:10,352 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem15_label16.c [2020-10-28 13:03:10,365 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 13:03:10,373 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 13:03:10,394 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 13:03:10,436 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 13:03:10,437 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 13:03:10,437 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 13:03:10,437 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 13:03:10,438 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 13:03:10,438 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 13:03:10,438 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 13:03:10,438 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 13:03:10,474 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states. [2020-10-28 13:03:10,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-28 13:03:10,487 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:03:10,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:03:10,489 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:03:10,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:03:10,497 INFO L82 PathProgramCache]: Analyzing trace with hash -780453057, now seen corresponding path program 1 times [2020-10-28 13:03:10,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:03:10,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [143469739] [2020-10-28 13:03:10,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:03:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:03:10,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:03:11,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:03:11,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-28 13:03:11,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:03:11,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 734 [2020-10-28 13:03:11,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:03:11,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:03:11,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:03:11,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 13:03:11,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 13:03:11,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 13:03:11,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:03:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:03:11,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:03:11,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:03:11,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:03:11,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:03:11,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 13:03:11,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:03:11,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:03:11,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:03:11,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:03:11,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 13:03:11,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:03:11,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 13:03:11,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [143469739] [2020-10-28 13:03:11,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 13:03:11,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 13:03:11,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520914627] [2020-10-28 13:03:11,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 13:03:11,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:03:11,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 13:03:11,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 13:03:11,850 INFO L87 Difference]: Start difference. First operand 441 states. Second operand 4 states. [2020-10-28 13:03:18,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:03:18,041 INFO L93 Difference]: Finished difference Result 1204 states and 2170 transitions. [2020-10-28 13:03:18,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 13:03:18,044 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 69 [2020-10-28 13:03:18,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:03:18,068 INFO L225 Difference]: With dead ends: 1204 [2020-10-28 13:03:18,068 INFO L226 Difference]: Without dead ends: 698 [2020-10-28 13:03:18,082 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 13:03:18,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2020-10-28 13:03:18,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 692. [2020-10-28 13:03:18,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-10-28 13:03:18,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1013 transitions. [2020-10-28 13:03:18,193 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1013 transitions. Word has length 69 [2020-10-28 13:03:18,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:03:18,194 INFO L481 AbstractCegarLoop]: Abstraction has 692 states and 1013 transitions. [2020-10-28 13:03:18,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 13:03:18,194 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1013 transitions. [2020-10-28 13:03:18,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-28 13:03:18,202 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:03:18,202 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:03:18,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 13:03:18,203 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:03:18,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:03:18,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1789586153, now seen corresponding path program 1 times [2020-10-28 13:03:18,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:03:18,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1920423622] [2020-10-28 13:03:18,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:03:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:03:18,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:03:18,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:03:18,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:03:22,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:03:22,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-28 13:03:22,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:03:22,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4417 [2020-10-28 13:03:22,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:03:22,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:03:22,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:03:22,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 13:03:22,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 13:03:22,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 13:03:22,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:03:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:03:22,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:03:22,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:03:22,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:03:22,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:03:22,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 13:03:22,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:03:22,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:03:22,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:03:22,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:03:22,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 13:03:22,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-28 13:03:22,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:03:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:03:22,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:03:23,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:03:23,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-28 13:03:23,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:03:23,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-28 13:03:23,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:03:23,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:03:23,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:03:23,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:03:23,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 13:03:23,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:03:23,236 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 13:03:23,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1920423622] [2020-10-28 13:03:23,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 13:03:23,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 13:03:23,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466403436] [2020-10-28 13:03:23,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:03:23,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:03:23,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:03:23,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:03:23,245 INFO L87 Difference]: Start difference. First operand 692 states and 1013 transitions. Second operand 7 states. [2020-10-28 13:03:35,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:03:35,122 INFO L93 Difference]: Finished difference Result 1712 states and 2419 transitions. [2020-10-28 13:03:35,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 13:03:35,130 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2020-10-28 13:03:35,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:03:35,139 INFO L225 Difference]: With dead ends: 1712 [2020-10-28 13:03:35,139 INFO L226 Difference]: Without dead ends: 1026 [2020-10-28 13:03:35,142 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-28 13:03:35,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2020-10-28 13:03:35,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 1015. [2020-10-28 13:03:35,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-10-28 13:03:35,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1368 transitions. [2020-10-28 13:03:35,232 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1368 transitions. Word has length 138 [2020-10-28 13:03:35,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:03:35,235 INFO L481 AbstractCegarLoop]: Abstraction has 1015 states and 1368 transitions. [2020-10-28 13:03:35,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:03:35,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1368 transitions. [2020-10-28 13:03:35,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-28 13:03:35,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:03:35,252 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:03:35,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 13:03:35,253 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:03:35,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:03:35,253 INFO L82 PathProgramCache]: Analyzing trace with hash 418292815, now seen corresponding path program 1 times [2020-10-28 13:03:35,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:03:35,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1262094192] [2020-10-28 13:03:35,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:03:35,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:03:35,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:03:35,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:03:36,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:03:36,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:03:36,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-28 13:03:36,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:03:36,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1469 [2020-10-28 13:03:36,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:03:36,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:03:36,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:03:36,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 13:03:36,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-28 13:03:36,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:03:36,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:03:36,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:03:36,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:03:36,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:03:36,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:03:36,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:03:36,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 13:03:36,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:03:36,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:03:36,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:03:36,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:03:36,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 13:03:36,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:03:36,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:03:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:03:36,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:03:37,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:03:37,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 13:03:37,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:03:37,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-28 13:03:37,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:03:37,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:03:37,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:03:37,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:03:37,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 13:03:37,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:03:37,179 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 13:03:37,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1262094192] [2020-10-28 13:03:37,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 13:03:37,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 13:03:37,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246852646] [2020-10-28 13:03:37,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:03:37,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:03:37,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:03:37,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:03:37,182 INFO L87 Difference]: Start difference. First operand 1015 states and 1368 transitions. Second operand 7 states. [2020-10-28 13:03:47,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:03:47,019 INFO L93 Difference]: Finished difference Result 2379 states and 3375 transitions. [2020-10-28 13:03:47,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 13:03:47,020 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 143 [2020-10-28 13:03:47,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:03:47,031 INFO L225 Difference]: With dead ends: 2379 [2020-10-28 13:03:47,031 INFO L226 Difference]: Without dead ends: 1677 [2020-10-28 13:03:47,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-28 13:03:47,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1677 states. [2020-10-28 13:03:47,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1677 to 1333. [2020-10-28 13:03:47,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1333 states. [2020-10-28 13:03:47,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 1724 transitions. [2020-10-28 13:03:47,128 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 1724 transitions. Word has length 143 [2020-10-28 13:03:47,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:03:47,128 INFO L481 AbstractCegarLoop]: Abstraction has 1333 states and 1724 transitions. [2020-10-28 13:03:47,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:03:47,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 1724 transitions. [2020-10-28 13:03:47,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-28 13:03:47,132 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:03:47,132 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, 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] [2020-10-28 13:03:47,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 13:03:47,133 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:03:47,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:03:47,133 INFO L82 PathProgramCache]: Analyzing trace with hash 637221304, now seen corresponding path program 1 times [2020-10-28 13:03:47,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:03:47,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1982878210] [2020-10-28 13:03:47,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:03:47,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:03:47,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:03:47,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:03:47,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:03:48,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:03:48,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:03:50,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:03:50,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-10-28 13:03:50,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 13:03:50,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3160 [2020-10-28 13:03:50,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:03:50,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:03:50,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:03:50,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-28 13:03:50,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-28 13:03:50,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:03:50,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:03:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:03:50,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:03:50,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:03:50,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:03:50,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:03:50,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 13:03:50,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:03:50,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:03:50,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:03:50,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:03:50,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:03:50,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:03:50,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:03:50,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:03:50,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:03:50,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:03:50,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-28 13:03:50,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:03:50,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-28 13:03:50,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:03:50,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:03:50,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:03:50,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:03:50,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-28 13:03:50,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:03:50,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 13:03:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:03:50,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:03:50,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:03:50,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 13:03:50,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:03:50,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-28 13:03:50,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:03:50,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:03:50,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:03:50,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:03:50,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-28 13:03:50,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:03:50,960 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 198 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 13:03:50,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1982878210] [2020-10-28 13:03:50,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:03:50,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:03:50,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319937178] [2020-10-28 13:03:50,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:03:50,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:03:50,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:03:50,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:03:50,963 INFO L87 Difference]: Start difference. First operand 1333 states and 1724 transitions. Second operand 7 states. [2020-10-28 13:04:01,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:04:01,966 INFO L93 Difference]: Finished difference Result 3654 states and 4861 transitions. [2020-10-28 13:04:01,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 13:04:01,967 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 243 [2020-10-28 13:04:01,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:04:01,986 INFO L225 Difference]: With dead ends: 3654 [2020-10-28 13:04:01,987 INFO L226 Difference]: Without dead ends: 2327 [2020-10-28 13:04:01,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 13:04:01,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2327 states. [2020-10-28 13:04:02,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2327 to 1961. [2020-10-28 13:04:02,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1961 states. [2020-10-28 13:04:02,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 2433 transitions. [2020-10-28 13:04:02,076 INFO L78 Accepts]: Start accepts. Automaton has 1961 states and 2433 transitions. Word has length 243 [2020-10-28 13:04:02,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:04:02,078 INFO L481 AbstractCegarLoop]: Abstraction has 1961 states and 2433 transitions. [2020-10-28 13:04:02,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:04:02,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1961 states and 2433 transitions. [2020-10-28 13:04:02,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2020-10-28 13:04:02,083 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:04:02,084 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:04:02,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 13:04:02,084 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:04:02,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:04:02,085 INFO L82 PathProgramCache]: Analyzing trace with hash -717165914, now seen corresponding path program 1 times [2020-10-28 13:04:02,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:04:02,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2141016268] [2020-10-28 13:04:02,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:04:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:04:02,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:04:02,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:04:02,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:04:07,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:04:07,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 363 [2020-10-28 13:04:07,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:04:07,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-28 13:04:07,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:04:07,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:04:07,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:04:07,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 13:04:07,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 206 [2020-10-28 13:04:07,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:04:07,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:04:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:04:07,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:04:07,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:04:07,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:04:07,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:04:07,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 13:04:07,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:04:07,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:04:07,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:04:07,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:04:07,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 13:04:07,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:04:07,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:04:07,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:04:07,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:04:07,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:04:07,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-28 13:04:07,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:04:07,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 523 [2020-10-28 13:04:07,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:04:07,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:04:07,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:04:07,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:04:07,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 201 [2020-10-28 13:04:07,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:04:08,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-28 13:04:08,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:04:08,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:04:08,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:04:08,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 13:04:08,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:04:08,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-28 13:04:08,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:04:08,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:04:08,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:04:08,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-28 13:04:08,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:04:08,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:04:08,829 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 122 proven. 75 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 13:04:08,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2141016268] [2020-10-28 13:04:08,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:04:08,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:04:08,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20742878] [2020-10-28 13:04:08,831 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:04:08,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:04:08,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:04:08,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:04:08,832 INFO L87 Difference]: Start difference. First operand 1961 states and 2433 transitions. Second operand 7 states. [2020-10-28 13:04:11,778 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-28 13:04:21,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:04:21,123 INFO L93 Difference]: Finished difference Result 4267 states and 5244 transitions. [2020-10-28 13:04:21,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 13:04:21,127 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 349 [2020-10-28 13:04:21,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:04:21,140 INFO L225 Difference]: With dead ends: 4267 [2020-10-28 13:04:21,141 INFO L226 Difference]: Without dead ends: 2312 [2020-10-28 13:04:21,146 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-28 13:04:21,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2312 states. [2020-10-28 13:04:21,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2312 to 2274. [2020-10-28 13:04:21,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2274 states. [2020-10-28 13:04:21,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 2760 transitions. [2020-10-28 13:04:21,220 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 2760 transitions. Word has length 349 [2020-10-28 13:04:21,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:04:21,221 INFO L481 AbstractCegarLoop]: Abstraction has 2274 states and 2760 transitions. [2020-10-28 13:04:21,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:04:21,222 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 2760 transitions. [2020-10-28 13:04:21,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2020-10-28 13:04:21,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:04:21,230 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:04:21,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 13:04:21,230 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:04:21,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:04:21,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1042824714, now seen corresponding path program 1 times [2020-10-28 13:04:21,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:04:21,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1003851836] [2020-10-28 13:04:21,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:04:21,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:04:21,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:04:21,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:04:21,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:04:22,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:04:26,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:04:26,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 378 [2020-10-28 13:04:26,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 13:04:26,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4853 [2020-10-28 13:04:26,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:04:26,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:04:26,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:04:26,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-28 13:04:26,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 203 [2020-10-28 13:04:26,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:04:26,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:04:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:04:26,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:04:26,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:04:26,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:04:26,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:04:26,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 13:04:26,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:04:26,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:04:26,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:04:26,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:04:26,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:04:26,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:04:26,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:04:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:04:26,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:04:26,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:04:26,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-28 13:04:26,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:04:26,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-28 13:04:26,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:04:26,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:04:26,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:04:26,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:04:26,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-28 13:04:26,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:04:26,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 13:04:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:04:26,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:04:27,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:04:27,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-28 13:04:27,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:04:27,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 468 [2020-10-28 13:04:27,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:04:27,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:04:27,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:04:27,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:04:27,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 201 [2020-10-28 13:04:27,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:04:27,346 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 214 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 13:04:27,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1003851836] [2020-10-28 13:04:27,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:04:27,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:04:27,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927310210] [2020-10-28 13:04:27,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:04:27,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:04:27,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:04:27,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:04:27,350 INFO L87 Difference]: Start difference. First operand 2274 states and 2760 transitions. Second operand 7 states. [2020-10-28 13:04:37,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:04:37,775 INFO L93 Difference]: Finished difference Result 5555 states and 7057 transitions. [2020-10-28 13:04:37,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 13:04:37,778 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 364 [2020-10-28 13:04:37,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:04:37,799 INFO L225 Difference]: With dead ends: 5555 [2020-10-28 13:04:37,800 INFO L226 Difference]: Without dead ends: 3271 [2020-10-28 13:04:37,806 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 13:04:37,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3271 states. [2020-10-28 13:04:37,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3271 to 3237. [2020-10-28 13:04:37,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3237 states. [2020-10-28 13:04:37,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3237 states to 3237 states and 3656 transitions. [2020-10-28 13:04:37,917 INFO L78 Accepts]: Start accepts. Automaton has 3237 states and 3656 transitions. Word has length 364 [2020-10-28 13:04:37,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:04:37,917 INFO L481 AbstractCegarLoop]: Abstraction has 3237 states and 3656 transitions. [2020-10-28 13:04:37,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:04:37,918 INFO L276 IsEmpty]: Start isEmpty. Operand 3237 states and 3656 transitions. [2020-10-28 13:04:37,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2020-10-28 13:04:37,926 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:04:37,927 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:04:37,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 13:04:37,927 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:04:37,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:04:37,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1152157393, now seen corresponding path program 1 times [2020-10-28 13:04:37,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:04:37,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1271096849] [2020-10-28 13:04:37,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:04:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:04:38,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:04:38,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:04:40,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:04:40,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 437 [2020-10-28 13:04:40,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 13:04:40,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2736 [2020-10-28 13:04:40,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:04:40,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:04:40,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:04:40,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-28 13:04:40,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-28 13:04:40,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:04:40,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:04:40,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:04:40,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:04:40,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:04:40,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:04:40,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:04:40,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 13:04:40,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:04:40,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:04:40,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:04:40,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:04:40,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:04:40,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:04:41,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:04:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:04:41,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:04:41,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:04:41,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-28 13:04:41,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:04:41,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-10-28 13:04:41,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:04:41,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:04:41,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:04:41,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:04:41,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 269 [2020-10-28 13:04:41,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:04:41,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:04:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:04:41,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:04:41,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:04:41,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 13:04:41,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:04:41,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-28 13:04:41,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:04:41,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:04:41,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:04:41,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:04:41,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-28 13:04:41,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:04:41,869 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 199 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 13:04:41,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1271096849] [2020-10-28 13:04:41,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:04:41,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:04:41,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158711239] [2020-10-28 13:04:41,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:04:41,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:04:41,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:04:41,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:04:41,872 INFO L87 Difference]: Start difference. First operand 3237 states and 3656 transitions. Second operand 7 states. [2020-10-28 13:04:51,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:04:51,869 INFO L93 Difference]: Finished difference Result 7823 states and 9121 transitions. [2020-10-28 13:04:51,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 13:04:51,875 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 423 [2020-10-28 13:04:51,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:04:51,896 INFO L225 Difference]: With dead ends: 7823 [2020-10-28 13:04:51,896 INFO L226 Difference]: Without dead ends: 4590 [2020-10-28 13:04:51,909 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-28 13:04:51,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4590 states. [2020-10-28 13:04:52,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4590 to 4534. [2020-10-28 13:04:52,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4534 states. [2020-10-28 13:04:52,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4534 states to 4534 states and 5075 transitions. [2020-10-28 13:04:52,049 INFO L78 Accepts]: Start accepts. Automaton has 4534 states and 5075 transitions. Word has length 423 [2020-10-28 13:04:52,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:04:52,049 INFO L481 AbstractCegarLoop]: Abstraction has 4534 states and 5075 transitions. [2020-10-28 13:04:52,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:04:52,050 INFO L276 IsEmpty]: Start isEmpty. Operand 4534 states and 5075 transitions. [2020-10-28 13:04:52,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2020-10-28 13:04:52,059 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:04:52,060 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:04:52,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 13:04:52,061 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:04:52,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:04:52,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1348357794, now seen corresponding path program 1 times [2020-10-28 13:04:52,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:04:52,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1651042698] [2020-10-28 13:04:52,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:04:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:04:52,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:04:52,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:04:54,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:04:54,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 468 [2020-10-28 13:04:54,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 13:04:54,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2269 [2020-10-28 13:04:54,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:04:54,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:04:54,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:04:54,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-28 13:04:54,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-28 13:04:54,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:04:54,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:04:54,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:04:54,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:04:54,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:04:54,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:04:54,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:04:54,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 13:04:54,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:04:54,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:04:54,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:04:54,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:04:54,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:04:54,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:04:54,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:04:54,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:04:54,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:04:54,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:04:54,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-28 13:04:54,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:04:54,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-28 13:04:54,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:04:54,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:04:54,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:04:54,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:04:54,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 269 [2020-10-28 13:04:54,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:04:55,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:04:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:04:55,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:04:55,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:04:55,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-28 13:04:55,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:04:55,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-28 13:04:55,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:04:55,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:04:55,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:04:55,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:04:55,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-28 13:04:55,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:04:55,624 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 230 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 13:04:55,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1651042698] [2020-10-28 13:04:55,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:04:55,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:04:55,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775170761] [2020-10-28 13:04:55,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:04:55,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:04:55,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:04:55,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:04:55,627 INFO L87 Difference]: Start difference. First operand 4534 states and 5075 transitions. Second operand 7 states. [2020-10-28 13:05:05,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:05:05,082 INFO L93 Difference]: Finished difference Result 9737 states and 10872 transitions. [2020-10-28 13:05:05,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 13:05:05,084 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 454 [2020-10-28 13:05:05,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:05:05,110 INFO L225 Difference]: With dead ends: 9737 [2020-10-28 13:05:05,110 INFO L226 Difference]: Without dead ends: 5516 [2020-10-28 13:05:05,122 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 13:05:05,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5516 states. [2020-10-28 13:05:05,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5516 to 5176. [2020-10-28 13:05:05,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5176 states. [2020-10-28 13:05:05,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 5738 transitions. [2020-10-28 13:05:05,287 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 5738 transitions. Word has length 454 [2020-10-28 13:05:05,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:05:05,288 INFO L481 AbstractCegarLoop]: Abstraction has 5176 states and 5738 transitions. [2020-10-28 13:05:05,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:05:05,289 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 5738 transitions. [2020-10-28 13:05:05,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2020-10-28 13:05:05,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:05:05,301 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:05:05,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 13:05:05,301 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:05:05,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:05:05,302 INFO L82 PathProgramCache]: Analyzing trace with hash -795826074, now seen corresponding path program 1 times [2020-10-28 13:05:05,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:05:05,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [702139821] [2020-10-28 13:05:05,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:05:05,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:05:05,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:05:06,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:05:06,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 480 [2020-10-28 13:05:06,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:05:06,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 839 [2020-10-28 13:05:06,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:05:06,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:05:06,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:05:06,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 409 [2020-10-28 13:05:06,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-28 13:05:06,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:05:06,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:05:06,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:05:06,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:05:06,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:05:06,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:05:06,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:05:06,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 13:05:06,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:05:06,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:05:06,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:05:06,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:05:06,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:05:06,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:05:06,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:05:06,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:05:06,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:05:06,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:05:06,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-28 13:05:06,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:05:06,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-28 13:05:06,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:05:06,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:05:06,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:05:06,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:05:06,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:05:06,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:05:06,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-28 13:05:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:05:06,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:05:06,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:05:06,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-28 13:05:06,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:05:06,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-28 13:05:06,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:05:06,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:05:06,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:05:06,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:05:06,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-28 13:05:06,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:05:06,977 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2020-10-28 13:05:06,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [702139821] [2020-10-28 13:05:06,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:05:06,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 13:05:06,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725639450] [2020-10-28 13:05:06,979 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 13:05:06,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:05:06,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 13:05:06,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 13:05:06,980 INFO L87 Difference]: Start difference. First operand 5176 states and 5738 transitions. Second operand 5 states. [2020-10-28 13:05:19,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:05:19,113 INFO L93 Difference]: Finished difference Result 12008 states and 13615 transitions. [2020-10-28 13:05:19,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 13:05:19,118 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 466 [2020-10-28 13:05:19,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:05:19,169 INFO L225 Difference]: With dead ends: 12008 [2020-10-28 13:05:19,169 INFO L226 Difference]: Without dead ends: 7145 [2020-10-28 13:05:19,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 13:05:19,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7145 states. [2020-10-28 13:05:19,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7145 to 7125. [2020-10-28 13:05:19,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7125 states. [2020-10-28 13:05:19,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7125 states to 7125 states and 8102 transitions. [2020-10-28 13:05:19,390 INFO L78 Accepts]: Start accepts. Automaton has 7125 states and 8102 transitions. Word has length 466 [2020-10-28 13:05:19,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:05:19,392 INFO L481 AbstractCegarLoop]: Abstraction has 7125 states and 8102 transitions. [2020-10-28 13:05:19,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 13:05:19,392 INFO L276 IsEmpty]: Start isEmpty. Operand 7125 states and 8102 transitions. [2020-10-28 13:05:19,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2020-10-28 13:05:19,398 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:05:19,401 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 13:05:19,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 13:05:19,402 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:05:19,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:05:19,403 INFO L82 PathProgramCache]: Analyzing trace with hash -316717213, now seen corresponding path program 1 times [2020-10-28 13:05:19,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:05:19,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [388566088] [2020-10-28 13:05:19,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:05:19,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:05:19,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:05:19,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:05:20,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:05:20,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:05:24,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:05:24,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 520 [2020-10-28 13:05:24,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 13:05:24,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-28 13:05:24,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:05:24,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:05:24,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:05:24,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 247 [2020-10-28 13:05:24,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 203 [2020-10-28 13:05:24,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:05:24,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:05:24,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:05:24,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:05:24,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:05:24,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:05:24,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:05:24,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 13:05:24,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:05:24,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:05:24,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:05:24,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:05:24,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:05:24,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:05:24,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:05:24,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:05:24,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:05:25,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:05:25,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-10-28 13:05:25,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:05:25,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-28 13:05:25,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:05:25,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:05:25,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:05:25,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:05:25,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 232 [2020-10-28 13:05:25,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:05:25,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2020-10-28 13:05:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:05:25,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:05:25,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:05:25,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-28 13:05:25,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:05:25,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-10-28 13:05:25,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:05:25,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:05:25,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:05:25,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:05:25,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 201 [2020-10-28 13:05:25,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:05:26,511 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 319 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 13:05:26,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [388566088] [2020-10-28 13:05:26,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:05:26,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 13:05:26,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370104172] [2020-10-28 13:05:26,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 13:05:26,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:05:26,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 13:05:26,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 13:05:26,517 INFO L87 Difference]: Start difference. First operand 7125 states and 8102 transitions. Second operand 8 states. [2020-10-28 13:05:41,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:05:41,991 INFO L93 Difference]: Finished difference Result 17462 states and 20388 transitions. [2020-10-28 13:05:41,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 13:05:41,999 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 506 [2020-10-28 13:05:42,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:05:42,037 INFO L225 Difference]: With dead ends: 17462 [2020-10-28 13:05:42,037 INFO L226 Difference]: Without dead ends: 9702 [2020-10-28 13:05:42,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-10-28 13:05:42,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9702 states. [2020-10-28 13:05:42,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9702 to 9660. [2020-10-28 13:05:42,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9660 states. [2020-10-28 13:05:42,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9660 states to 9660 states and 10964 transitions. [2020-10-28 13:05:42,305 INFO L78 Accepts]: Start accepts. Automaton has 9660 states and 10964 transitions. Word has length 506 [2020-10-28 13:05:42,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:05:42,306 INFO L481 AbstractCegarLoop]: Abstraction has 9660 states and 10964 transitions. [2020-10-28 13:05:42,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 13:05:42,306 INFO L276 IsEmpty]: Start isEmpty. Operand 9660 states and 10964 transitions. [2020-10-28 13:05:42,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2020-10-28 13:05:42,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:05:42,314 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, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:05:42,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 13:05:42,314 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:05:42,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:05:42,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1820570522, now seen corresponding path program 1 times [2020-10-28 13:05:42,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:05:42,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1068422003] [2020-10-28 13:05:42,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:05:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:05:42,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:05:42,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:05:44,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:05:45,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:05:45,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 558 [2020-10-28 13:05:45,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:05:45,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3352 [2020-10-28 13:05:45,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:05:45,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:05:45,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:05:45,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 409 [2020-10-28 13:05:45,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 13:05:45,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:05:45,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:05:45,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:05:45,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:05:45,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:05:45,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:05:45,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:05:45,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 13:05:45,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:05:45,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:05:45,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:05:45,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:05:45,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:05:45,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:05:46,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:05:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:05:46,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:05:46,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:05:46,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-28 13:05:46,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:05:46,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-28 13:05:46,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:05:46,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:05:46,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:05:46,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:05:46,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:05:46,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:05:46,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-28 13:05:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:05:46,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:05:46,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:05:46,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-28 13:05:46,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:05:46,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-28 13:05:46,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:05:46,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:05:46,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:05:46,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:05:46,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-28 13:05:46,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:05:46,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-28 13:05:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:05:46,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:05:46,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:05:46,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 13:05:46,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:05:46,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-28 13:05:46,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:05:46,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:05:46,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:05:46,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:05:46,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 13:05:46,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:05:46,767 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 334 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-28 13:05:46,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1068422003] [2020-10-28 13:05:46,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:05:46,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:05:46,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678937767] [2020-10-28 13:05:46,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:05:46,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:05:46,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:05:46,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:05:46,770 INFO L87 Difference]: Start difference. First operand 9660 states and 10964 transitions. Second operand 7 states. [2020-10-28 13:05:58,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:05:58,233 INFO L93 Difference]: Finished difference Result 22490 states and 26237 transitions. [2020-10-28 13:05:58,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 13:05:58,237 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 542 [2020-10-28 13:05:58,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:05:58,281 INFO L225 Difference]: With dead ends: 22490 [2020-10-28 13:05:58,281 INFO L226 Difference]: Without dead ends: 13143 [2020-10-28 13:05:58,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 13:05:58,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13143 states. [2020-10-28 13:05:58,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13143 to 11857. [2020-10-28 13:05:58,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11857 states. [2020-10-28 13:05:58,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11857 states to 11857 states and 13801 transitions. [2020-10-28 13:05:58,618 INFO L78 Accepts]: Start accepts. Automaton has 11857 states and 13801 transitions. Word has length 542 [2020-10-28 13:05:58,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:05:58,620 INFO L481 AbstractCegarLoop]: Abstraction has 11857 states and 13801 transitions. [2020-10-28 13:05:58,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:05:58,620 INFO L276 IsEmpty]: Start isEmpty. Operand 11857 states and 13801 transitions. [2020-10-28 13:05:58,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2020-10-28 13:05:58,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:05:58,629 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, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:05:58,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 13:05:58,630 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:05:58,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:05:58,631 INFO L82 PathProgramCache]: Analyzing trace with hash -2051841978, now seen corresponding path program 1 times [2020-10-28 13:05:58,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:05:58,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [554834769] [2020-10-28 13:05:58,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:05:58,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:05:58,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:05:59,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:00,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:02,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:06:02,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 564 [2020-10-28 13:06:02,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:06:02,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3734 [2020-10-28 13:06:02,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:06:02,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:06:02,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:06:02,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 409 [2020-10-28 13:06:02,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 13:06:02,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:06:02,740 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-28 13:06:02,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:06:02,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:06:02,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:02,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:06:02,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:06:02,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:06:02,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 13:06:02,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:06:02,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:06:02,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:06:02,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:06:02,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:06:02,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:06:02,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:06:02,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:06:02,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:02,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:06:02,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-28 13:06:02,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:06:02,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-28 13:06:02,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:06:02,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:06:02,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:06:02,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:06:02,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:06:02,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:06:03,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-28 13:06:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:06:03,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:03,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:06:03,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-28 13:06:03,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:06:03,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-28 13:06:03,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:06:03,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:06:03,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:06:03,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:06:03,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-28 13:06:03,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:06:03,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-28 13:06:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:06:03,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:03,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:06:03,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 13:06:03,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:06:03,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-28 13:06:03,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:06:03,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:06:03,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:06:03,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:06:03,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-28 13:06:03,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:06:03,843 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 346 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-28 13:06:03,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [554834769] [2020-10-28 13:06:03,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:06:03,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:06:03,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502477184] [2020-10-28 13:06:03,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:06:03,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:06:03,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:06:03,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:06:03,845 INFO L87 Difference]: Start difference. First operand 11857 states and 13801 transitions. Second operand 7 states. [2020-10-28 13:06:14,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:06:14,459 INFO L93 Difference]: Finished difference Result 27818 states and 33457 transitions. [2020-10-28 13:06:14,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 13:06:14,461 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 548 [2020-10-28 13:06:14,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:06:14,534 INFO L225 Difference]: With dead ends: 27818 [2020-10-28 13:06:14,534 INFO L226 Difference]: Without dead ends: 15944 [2020-10-28 13:06:14,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-28 13:06:14,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15944 states. [2020-10-28 13:06:14,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15944 to 15612. [2020-10-28 13:06:14,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15612 states. [2020-10-28 13:06:14,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15612 states to 15612 states and 17968 transitions. [2020-10-28 13:06:14,952 INFO L78 Accepts]: Start accepts. Automaton has 15612 states and 17968 transitions. Word has length 548 [2020-10-28 13:06:14,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:06:14,953 INFO L481 AbstractCegarLoop]: Abstraction has 15612 states and 17968 transitions. [2020-10-28 13:06:14,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:06:14,953 INFO L276 IsEmpty]: Start isEmpty. Operand 15612 states and 17968 transitions. [2020-10-28 13:06:14,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2020-10-28 13:06:14,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:06:14,965 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:06:14,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 13:06:14,965 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:06:14,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:06:14,966 INFO L82 PathProgramCache]: Analyzing trace with hash 996472546, now seen corresponding path program 1 times [2020-10-28 13:06:14,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:06:14,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1047336665] [2020-10-28 13:06:14,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:06:15,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:06:15,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:15,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:17,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:06:17,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 644 [2020-10-28 13:06:17,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 13:06:17,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2712 [2020-10-28 13:06:17,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:06:17,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:06:17,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:06:17,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 491 [2020-10-28 13:06:17,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-28 13:06:17,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:06:18,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:06:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:06:18,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:18,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:06:18,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:06:18,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:06:18,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 13:06:18,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:06:18,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:06:18,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:06:18,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:06:18,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:06:18,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:06:18,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:06:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:06:18,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:18,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:06:18,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-28 13:06:18,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:06:18,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-28 13:06:18,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:06:18,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:06:18,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:06:18,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:06:18,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:06:18,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:06:18,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-28 13:06:18,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:06:18,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:18,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:06:18,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-28 13:06:18,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:06:18,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-28 13:06:18,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:06:18,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:06:18,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:06:18,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:06:18,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 188 [2020-10-28 13:06:18,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:06:18,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2020-10-28 13:06:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:06:18,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:18,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:06:18,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 13:06:18,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:06:18,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-28 13:06:18,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:06:18,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:06:18,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:06:18,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:06:18,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-28 13:06:18,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:06:18,978 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 342 proven. 2 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2020-10-28 13:06:18,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1047336665] [2020-10-28 13:06:18,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:06:18,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:06:18,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849714231] [2020-10-28 13:06:18,979 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:06:18,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:06:18,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:06:18,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:06:18,981 INFO L87 Difference]: Start difference. First operand 15612 states and 17968 transitions. Second operand 7 states. [2020-10-28 13:06:19,137 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-10-28 13:06:24,275 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-28 13:06:32,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:06:32,943 INFO L93 Difference]: Finished difference Result 39926 states and 46263 transitions. [2020-10-28 13:06:32,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 13:06:32,945 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 628 [2020-10-28 13:06:32,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:06:33,025 INFO L225 Difference]: With dead ends: 39926 [2020-10-28 13:06:33,025 INFO L226 Difference]: Without dead ends: 24318 [2020-10-28 13:06:33,065 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 13:06:33,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24318 states. [2020-10-28 13:06:33,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24318 to 21817. [2020-10-28 13:06:33,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21817 states. [2020-10-28 13:06:33,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21817 states to 21817 states and 25195 transitions. [2020-10-28 13:06:33,574 INFO L78 Accepts]: Start accepts. Automaton has 21817 states and 25195 transitions. Word has length 628 [2020-10-28 13:06:33,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:06:33,576 INFO L481 AbstractCegarLoop]: Abstraction has 21817 states and 25195 transitions. [2020-10-28 13:06:33,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:06:33,576 INFO L276 IsEmpty]: Start isEmpty. Operand 21817 states and 25195 transitions. [2020-10-28 13:06:33,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2020-10-28 13:06:33,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:06:33,597 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:06:33,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 13:06:33,597 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:06:33,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:06:33,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1129041634, now seen corresponding path program 1 times [2020-10-28 13:06:33,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:06:33,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1000431408] [2020-10-28 13:06:33,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:06:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:06:33,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:34,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:34,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:34,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:38,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:38,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:06:38,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 694 [2020-10-28 13:06:38,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 13:06:38,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-28 13:06:38,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:06:38,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:06:38,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:06:38,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 537 [2020-10-28 13:06:38,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 13:06:38,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:06:39,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:06:39,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:06:39,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:39,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:06:39,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:06:39,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:06:39,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 13:06:39,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:06:39,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:06:39,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:06:39,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:06:39,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:06:39,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:06:39,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:06:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:06:39,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:39,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:06:39,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-28 13:06:39,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:06:39,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-28 13:06:39,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:06:39,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:06:39,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:06:39,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:06:39,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:06:39,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:06:39,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-28 13:06:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:06:39,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:39,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:06:39,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-28 13:06:39,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:06:39,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 13:06:39,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:06:39,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:06:39,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:06:39,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:06:39,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:06:39,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:06:39,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-28 13:06:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:06:39,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:39,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:06:39,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 13:06:39,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:06:39,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-28 13:06:39,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:06:39,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:06:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:06:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 121 [2020-10-28 13:06:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 13:06:39,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:06:39,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-28 13:06:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:06:39,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:39,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:06:39,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 13:06:39,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:06:39,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 13:06:39,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:06:39,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:06:39,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:06:39,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 13:06:39,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:06:39,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:06:39,768 INFO L134 CoverageAnalysis]: Checked inductivity of 838 backedges. 258 proven. 2 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2020-10-28 13:06:39,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1000431408] [2020-10-28 13:06:39,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:06:39,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 13:06:39,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189631298] [2020-10-28 13:06:39,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 13:06:39,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:06:39,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 13:06:39,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 13:06:39,771 INFO L87 Difference]: Start difference. First operand 21817 states and 25195 transitions. Second operand 5 states. [2020-10-28 13:06:48,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:06:48,898 INFO L93 Difference]: Finished difference Result 43935 states and 50769 transitions. [2020-10-28 13:06:48,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 13:06:48,900 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 676 [2020-10-28 13:06:48,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:06:48,966 INFO L225 Difference]: With dead ends: 43935 [2020-10-28 13:06:48,966 INFO L226 Difference]: Without dead ends: 22431 [2020-10-28 13:06:48,994 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 13:06:49,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22431 states. [2020-10-28 13:06:49,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22431 to 21813. [2020-10-28 13:06:49,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21813 states. [2020-10-28 13:06:49,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21813 states to 21813 states and 25161 transitions. [2020-10-28 13:06:49,531 INFO L78 Accepts]: Start accepts. Automaton has 21813 states and 25161 transitions. Word has length 676 [2020-10-28 13:06:49,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:06:49,532 INFO L481 AbstractCegarLoop]: Abstraction has 21813 states and 25161 transitions. [2020-10-28 13:06:49,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 13:06:49,533 INFO L276 IsEmpty]: Start isEmpty. Operand 21813 states and 25161 transitions. [2020-10-28 13:06:49,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2020-10-28 13:06:49,549 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:06:49,550 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:06:49,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 13:06:49,550 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:06:49,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:06:49,551 INFO L82 PathProgramCache]: Analyzing trace with hash -2052209060, now seen corresponding path program 1 times [2020-10-28 13:06:49,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:06:49,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2069982074] [2020-10-28 13:06:49,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:06:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:06:49,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:50,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:53,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:54,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:06:54,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 694 [2020-10-28 13:06:54,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:06:54,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-28 13:06:54,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:06:54,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:06:54,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:06:54,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 409 [2020-10-28 13:06:54,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-28 13:06:54,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:06:54,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:06:54,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:06:54,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:54,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:06:54,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:06:54,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:06:54,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 13:06:54,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:06:54,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:06:54,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:06:54,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:06:54,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:06:54,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:06:54,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:06:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:06:54,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:55,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:06:55,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-28 13:06:55,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:06:55,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-28 13:06:55,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:06:55,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:06:55,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:06:55,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:06:55,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:06:55,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:06:55,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-28 13:06:55,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:06:55,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:06:55,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:06:55,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-28 13:06:55,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:06:55,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-28 13:06:55,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL