/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 14:00:30,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 14:00:30,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 14:00:30,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 14:00:30,295 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 14:00:30,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 14:00:30,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 14:00:30,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 14:00:30,312 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 14:00:30,314 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 14:00:30,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 14:00:30,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 14:00:30,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 14:00:30,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 14:00:30,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 14:00:30,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 14:00:30,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 14:00:30,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 14:00:30,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 14:00:30,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 14:00:30,339 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 14:00:30,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 14:00:30,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 14:00:30,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 14:00:30,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 14:00:30,358 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 14:00:30,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 14:00:30,360 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 14:00:30,360 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 14:00:30,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 14:00:30,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 14:00:30,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 14:00:30,362 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 14:00:30,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 14:00:30,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 14:00:30,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 14:00:30,365 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 14:00:30,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 14:00:30,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 14:00:30,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 14:00:30,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 14:00:30,368 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 [2020-10-12 14:00:30,390 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 14:00:30,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 14:00:30,391 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 14:00:30,392 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 14:00:30,392 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 14:00:30,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 14:00:30,392 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 14:00:30,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 14:00:30,393 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 14:00:30,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 14:00:30,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 14:00:30,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 14:00:30,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 14:00:30,394 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 14:00:30,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 14:00:30,394 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 14:00:30,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 14:00:30,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 14:00:30,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 14:00:30,395 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 14:00:30,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 14:00:30,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:00:30,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 14:00:30,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 14:00:30,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 14:00:30,396 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 14:00:30,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 14:00:30,396 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 14:00:30,397 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 14:00:30,397 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 14:00:30,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 14:00:30,755 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 14:00:30,762 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 14:00:30,766 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 14:00:30,766 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 14:00:30,769 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label41.c [2020-10-12 14:00:30,833 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/71b42c2af/cb08f8bd362140679f1bedc9db569543/FLAG105784b27 [2020-10-12 14:00:31,483 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 14:00:31,484 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label41.c [2020-10-12 14:00:31,502 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/71b42c2af/cb08f8bd362140679f1bedc9db569543/FLAG105784b27 [2020-10-12 14:00:31,669 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/71b42c2af/cb08f8bd362140679f1bedc9db569543 [2020-10-12 14:00:31,681 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 14:00:31,683 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 14:00:31,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 14:00:31,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 14:00:31,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 14:00:31,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:00:31" (1/1) ... [2020-10-12 14:00:31,714 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad15a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:31, skipping insertion in model container [2020-10-12 14:00:31,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:00:31" (1/1) ... [2020-10-12 14:00:31,724 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 14:00:31,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 14:00:32,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:00:32,235 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 14:00:32,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:00:32,504 INFO L208 MainTranslator]: Completed translation [2020-10-12 14:00:32,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:32 WrapperNode [2020-10-12 14:00:32,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 14:00:32,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 14:00:32,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 14:00:32,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 14:00:32,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:32" (1/1) ... [2020-10-12 14:00:32,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:32" (1/1) ... [2020-10-12 14:00:32,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:32" (1/1) ... [2020-10-12 14:00:32,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:32" (1/1) ... [2020-10-12 14:00:32,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:32" (1/1) ... [2020-10-12 14:00:32,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:32" (1/1) ... [2020-10-12 14:00:32,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:32" (1/1) ... [2020-10-12 14:00:32,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 14:00:32,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 14:00:32,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 14:00:32,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 14:00:32,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:32" (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 [2020-10-12 14:00:32,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 14:00:32,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 14:00:32,739 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 14:00:32,739 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 14:00:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 14:00:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 14:00:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 14:00:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 14:00:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 14:00:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 14:00:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 14:00:34,137 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 14:00:34,137 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 14:00:34,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:00:34 BoogieIcfgContainer [2020-10-12 14:00:34,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 14:00:34,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 14:00:34,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 14:00:34,150 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 14:00:34,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 02:00:31" (1/3) ... [2020-10-12 14:00:34,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a88e79b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:00:34, skipping insertion in model container [2020-10-12 14:00:34,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:32" (2/3) ... [2020-10-12 14:00:34,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a88e79b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:00:34, skipping insertion in model container [2020-10-12 14:00:34,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:00:34" (3/3) ... [2020-10-12 14:00:34,155 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label41.c [2020-10-12 14:00:34,168 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 14:00:34,177 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 14:00:34,193 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 14:00:34,221 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 14:00:34,221 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 14:00:34,221 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 14:00:34,221 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 14:00:34,222 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 14:00:34,222 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 14:00:34,222 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 14:00:34,222 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 14:00:34,247 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-12 14:00:34,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-12 14:00:34,254 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:34,255 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:00:34,255 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:34,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:34,262 INFO L82 PathProgramCache]: Analyzing trace with hash 768801386, now seen corresponding path program 1 times [2020-10-12 14:00:34,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:34,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [738847150] [2020-10-12 14:00:34,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:34,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:34,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:34,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 14:00:34,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:34,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-10-12 14:00:34,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:34,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:00:34,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:00:34,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 14:00:34,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:00:34,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:34,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:34,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:34,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:34,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:34,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:34,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:00:34,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:34,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:34,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:34,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:00:34,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:34,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:00:34,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [738847150] [2020-10-12 14:00:34,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:00:34,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 14:00:34,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315555732] [2020-10-12 14:00:34,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 14:00:34,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:34,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 14:00:34,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 14:00:34,798 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2020-10-12 14:00:36,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:36,521 INFO L93 Difference]: Finished difference Result 698 states and 1241 transitions. [2020-10-12 14:00:36,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:00:36,523 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-12 14:00:36,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:36,541 INFO L225 Difference]: With dead ends: 698 [2020-10-12 14:00:36,541 INFO L226 Difference]: Without dead ends: 380 [2020-10-12 14:00:36,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:00:36,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-12 14:00:36,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-12 14:00:36,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-12 14:00:36,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 604 transitions. [2020-10-12 14:00:36,633 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 604 transitions. Word has length 13 [2020-10-12 14:00:36,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:36,633 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 604 transitions. [2020-10-12 14:00:36,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 14:00:36,634 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 604 transitions. [2020-10-12 14:00:36,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-12 14:00:36,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:36,638 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 14:00:36,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 14:00:36,639 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:36,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:36,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1598425217, now seen corresponding path program 1 times [2020-10-12 14:00:36,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:36,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [316301587] [2020-10-12 14:00:36,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:36,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:36,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:36,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:37,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:37,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 14:00:37,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:00:37,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 708 [2020-10-12 14:00:37,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:37,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:00:37,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:00:37,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 14:00:37,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:37,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:37,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:37,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:37,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:37,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:37,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:37,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:00:37,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:37,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:37,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:37,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:00:37,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:37,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:37,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:37,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:37,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:00:37,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:37,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-12 14:00:37,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:37,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:00:37,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:00:37,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 14:00:37,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:37,636 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:00:37,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [316301587] [2020-10-12 14:00:37,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:00:37,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:00:37,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297840840] [2020-10-12 14:00:37,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:00:37,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:37,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:00:37,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:00:37,640 INFO L87 Difference]: Start difference. First operand 374 states and 604 transitions. Second operand 7 states. [2020-10-12 14:00:39,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:39,579 INFO L93 Difference]: Finished difference Result 1132 states and 1844 transitions. [2020-10-12 14:00:39,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:00:39,588 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 82 [2020-10-12 14:00:39,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:39,596 INFO L225 Difference]: With dead ends: 1132 [2020-10-12 14:00:39,597 INFO L226 Difference]: Without dead ends: 764 [2020-10-12 14:00:39,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:00:39,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2020-10-12 14:00:39,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 748. [2020-10-12 14:00:39,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 748 states. [2020-10-12 14:00:39,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1059 transitions. [2020-10-12 14:00:39,660 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1059 transitions. Word has length 82 [2020-10-12 14:00:39,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:39,661 INFO L479 AbstractCegarLoop]: Abstraction has 748 states and 1059 transitions. [2020-10-12 14:00:39,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:00:39,661 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1059 transitions. [2020-10-12 14:00:39,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-12 14:00:39,664 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:39,664 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 14:00:39,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 14:00:39,665 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:39,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:39,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1274545242, now seen corresponding path program 1 times [2020-10-12 14:00:39,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:39,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [39444368] [2020-10-12 14:00:39,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:39,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:39,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:40,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:40,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-12 14:00:40,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:00:40,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 484 [2020-10-12 14:00:40,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:40,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:00:40,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:00:40,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 14:00:40,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:40,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:40,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:40,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:40,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:40,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:40,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:00:40,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:40,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:40,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:40,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:00:40,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:40,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:40,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:40,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:40,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:00:40,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:40,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-12 14:00:40,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:40,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:00:40,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:00:40,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 14:00:40,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:40,437 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:00:40,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [39444368] [2020-10-12 14:00:40,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:00:40,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:00:40,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335207938] [2020-10-12 14:00:40,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:00:40,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:40,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:00:40,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:00:40,440 INFO L87 Difference]: Start difference. First operand 748 states and 1059 transitions. Second operand 7 states. [2020-10-12 14:00:42,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:42,252 INFO L93 Difference]: Finished difference Result 1706 states and 2517 transitions. [2020-10-12 14:00:42,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:00:42,256 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2020-10-12 14:00:42,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:42,267 INFO L225 Difference]: With dead ends: 1706 [2020-10-12 14:00:42,268 INFO L226 Difference]: Without dead ends: 964 [2020-10-12 14:00:42,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:00:42,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2020-10-12 14:00:42,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 940. [2020-10-12 14:00:42,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 940 states. [2020-10-12 14:00:42,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1258 transitions. [2020-10-12 14:00:42,316 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1258 transitions. Word has length 83 [2020-10-12 14:00:42,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:42,316 INFO L479 AbstractCegarLoop]: Abstraction has 940 states and 1258 transitions. [2020-10-12 14:00:42,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:00:42,316 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1258 transitions. [2020-10-12 14:00:42,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-12 14:00:42,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:42,320 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 14:00:42,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 14:00:42,320 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:42,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:42,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1812844489, now seen corresponding path program 1 times [2020-10-12 14:00:42,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:42,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2048364497] [2020-10-12 14:00:42,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:42,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:42,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:43,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:43,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 14:00:43,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:00:43,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 824 [2020-10-12 14:00:43,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:43,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:00:43,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:00:43,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 14:00:43,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:43,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:43,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:43,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:43,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:43,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:43,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:43,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 14:00:43,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:43,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:43,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:43,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:00:43,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:43,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:43,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:43,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:43,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:43,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 14:00:43,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:43,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-12 14:00:43,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:43,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:00:43,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:00:43,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 14:00:43,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:43,492 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:00:43,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2048364497] [2020-10-12 14:00:43,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:00:43,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:00:43,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209850715] [2020-10-12 14:00:43,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:00:43,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:43,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:00:43,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:00:43,498 INFO L87 Difference]: Start difference. First operand 940 states and 1258 transitions. Second operand 7 states. [2020-10-12 14:00:45,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:45,456 INFO L93 Difference]: Finished difference Result 1710 states and 2339 transitions. [2020-10-12 14:00:45,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:00:45,457 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 86 [2020-10-12 14:00:45,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:45,464 INFO L225 Difference]: With dead ends: 1710 [2020-10-12 14:00:45,464 INFO L226 Difference]: Without dead ends: 1144 [2020-10-12 14:00:45,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:00:45,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2020-10-12 14:00:45,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 1124. [2020-10-12 14:00:45,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1124 states. [2020-10-12 14:00:45,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1460 transitions. [2020-10-12 14:00:45,501 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1460 transitions. Word has length 86 [2020-10-12 14:00:45,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:45,502 INFO L479 AbstractCegarLoop]: Abstraction has 1124 states and 1460 transitions. [2020-10-12 14:00:45,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:00:45,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1460 transitions. [2020-10-12 14:00:45,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-12 14:00:45,504 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:45,504 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:00:45,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 14:00:45,504 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:45,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:45,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1101918178, now seen corresponding path program 1 times [2020-10-12 14:00:45,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:45,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1221220219] [2020-10-12 14:00:45,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:45,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:45,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:45,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:45,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-12 14:00:45,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:45,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-12 14:00:45,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:45,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:00:45,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 14:00:45,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 14:00:45,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:45,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:45,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:45,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:45,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:45,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:45,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:00:45,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:45,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:45,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:45,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:45,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:45,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:45,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:45,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:45,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 14:00:45,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:45,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 14:00:45,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:45,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:45,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:45,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 14:00:45,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:45,884 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:00:45,885 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1221220219] [2020-10-12 14:00:45,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:00:45,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:00:45,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249715595] [2020-10-12 14:00:45,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:00:45,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:45,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:00:45,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:00:45,890 INFO L87 Difference]: Start difference. First operand 1124 states and 1460 transitions. Second operand 5 states. [2020-10-12 14:00:47,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:47,590 INFO L93 Difference]: Finished difference Result 2070 states and 2781 transitions. [2020-10-12 14:00:47,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:00:47,591 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2020-10-12 14:00:47,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:47,596 INFO L225 Difference]: With dead ends: 2070 [2020-10-12 14:00:47,597 INFO L226 Difference]: Without dead ends: 1134 [2020-10-12 14:00:47,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:00:47,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2020-10-12 14:00:47,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 940. [2020-10-12 14:00:47,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 940 states. [2020-10-12 14:00:47,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1221 transitions. [2020-10-12 14:00:47,624 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1221 transitions. Word has length 97 [2020-10-12 14:00:47,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:47,626 INFO L479 AbstractCegarLoop]: Abstraction has 940 states and 1221 transitions. [2020-10-12 14:00:47,626 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:00:47,627 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1221 transitions. [2020-10-12 14:00:47,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-10-12 14:00:47,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:47,637 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:00:47,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 14:00:47,638 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:47,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:47,638 INFO L82 PathProgramCache]: Analyzing trace with hash -301136507, now seen corresponding path program 1 times [2020-10-12 14:00:47,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:47,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [113967869] [2020-10-12 14:00:47,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:47,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:47,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:47,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:48,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:49,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:49,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-12 14:00:49,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:00:49,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2203 [2020-10-12 14:00:49,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:49,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:00:49,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:00:49,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-12 14:00:49,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:49,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:49,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:49,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:49,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:49,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:49,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:00:49,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:49,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:49,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:49,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:00:49,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:49,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:50,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:50,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:50,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 14:00:50,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:50,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-12 14:00:50,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:50,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:00:50,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:00:50,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 14:00:50,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:50,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 14:00:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:50,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:50,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:50,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:00:50,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:50,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-12 14:00:50,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:50,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:00:50,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:00:50,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 14:00:50,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:50,506 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 13 proven. 78 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 14:00:50,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [113967869] [2020-10-12 14:00:50,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:00:50,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:00:50,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040537350] [2020-10-12 14:00:50,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:00:50,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:50,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:00:50,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:00:50,512 INFO L87 Difference]: Start difference. First operand 940 states and 1221 transitions. Second operand 8 states. [2020-10-12 14:00:52,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:52,289 INFO L93 Difference]: Finished difference Result 1902 states and 2470 transitions. [2020-10-12 14:00:52,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:00:52,293 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 180 [2020-10-12 14:00:52,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:52,300 INFO L225 Difference]: With dead ends: 1902 [2020-10-12 14:00:52,300 INFO L226 Difference]: Without dead ends: 968 [2020-10-12 14:00:52,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:00:52,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2020-10-12 14:00:52,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 938. [2020-10-12 14:00:52,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 938 states. [2020-10-12 14:00:52,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1209 transitions. [2020-10-12 14:00:52,338 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1209 transitions. Word has length 180 [2020-10-12 14:00:52,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:52,338 INFO L479 AbstractCegarLoop]: Abstraction has 938 states and 1209 transitions. [2020-10-12 14:00:52,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:00:52,338 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1209 transitions. [2020-10-12 14:00:52,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-10-12 14:00:52,342 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:52,342 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:00:52,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 14:00:52,343 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:52,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:52,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1084600394, now seen corresponding path program 1 times [2020-10-12 14:00:52,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:52,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [496031820] [2020-10-12 14:00:52,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:52,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:52,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:52,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:52,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:54,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:56,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:56,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-12 14:00:56,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:00:56,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4331 [2020-10-12 14:00:56,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:56,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:00:56,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:00:56,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 200 [2020-10-12 14:00:56,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:56,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:56,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:56,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:56,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:56,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:56,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:00:56,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:56,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:56,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:56,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:00:56,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:56,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:56,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:56,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:56,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:57,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:57,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:00:57,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:00:57,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-10-12 14:00:57,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:57,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:00:57,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:00:57,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 14:00:57,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:57,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 14:00:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:57,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:57,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:57,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:00:57,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:57,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-12 14:00:57,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:57,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:00:57,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:00:57,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 14:00:57,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:57,683 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 89 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 14:00:57,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [496031820] [2020-10-12 14:00:57,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:00:57,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:00:57,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898435420] [2020-10-12 14:00:57,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:00:57,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:57,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:00:57,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:00:57,686 INFO L87 Difference]: Start difference. First operand 938 states and 1209 transitions. Second operand 8 states. [2020-10-12 14:00:59,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:59,171 INFO L93 Difference]: Finished difference Result 1706 states and 2256 transitions. [2020-10-12 14:00:59,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:00:59,172 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 205 [2020-10-12 14:00:59,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:59,178 INFO L225 Difference]: With dead ends: 1706 [2020-10-12 14:00:59,179 INFO L226 Difference]: Without dead ends: 956 [2020-10-12 14:00:59,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:00:59,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2020-10-12 14:00:59,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 940. [2020-10-12 14:00:59,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 940 states. [2020-10-12 14:00:59,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1202 transitions. [2020-10-12 14:00:59,208 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1202 transitions. Word has length 205 [2020-10-12 14:00:59,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:59,209 INFO L479 AbstractCegarLoop]: Abstraction has 940 states and 1202 transitions. [2020-10-12 14:00:59,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:00:59,210 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1202 transitions. [2020-10-12 14:00:59,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-10-12 14:00:59,214 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:59,214 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:00:59,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 14:00:59,215 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:59,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:59,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1232964717, now seen corresponding path program 1 times [2020-10-12 14:00:59,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:59,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064240553] [2020-10-12 14:00:59,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:59,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:59,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:59,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:01,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:01,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:04,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:04,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-10-12 14:01:04,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:01:04,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 14:01:04,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:04,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:01:04,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:01:04,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-12 14:01:04,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:04,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:04,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:04,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:04,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:04,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:04,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:04,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:01:04,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:04,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:04,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:04,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:01:04,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:04,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:04,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:04,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:04,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:01:04,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:04,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-12 14:01:04,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:04,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:01:04,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:04,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 14:01:04,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:04,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 14:01:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:04,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:04,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:04,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:01:04,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:04,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:01:04,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:04,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:04,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-12 14:01:04,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:04,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:04,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-12 14:01:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:04,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:04,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:04,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:01:04,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:04,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 14:01:04,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:04,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:04,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-12 14:01:04,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:04,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:04,799 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 18 proven. 142 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-12 14:01:04,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1064240553] [2020-10-12 14:01:04,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:04,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:01:04,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239223465] [2020-10-12 14:01:04,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:01:04,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:04,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:01:04,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:01:04,802 INFO L87 Difference]: Start difference. First operand 940 states and 1202 transitions. Second operand 7 states. [2020-10-12 14:01:07,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:07,097 INFO L93 Difference]: Finished difference Result 2628 states and 3440 transitions. [2020-10-12 14:01:07,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:01:07,098 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 274 [2020-10-12 14:01:07,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:07,105 INFO L225 Difference]: With dead ends: 2628 [2020-10-12 14:01:07,105 INFO L226 Difference]: Without dead ends: 1692 [2020-10-12 14:01:07,108 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:01:07,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2020-10-12 14:01:07,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1504. [2020-10-12 14:01:07,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1504 states. [2020-10-12 14:01:07,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 1852 transitions. [2020-10-12 14:01:07,142 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 1852 transitions. Word has length 274 [2020-10-12 14:01:07,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:07,142 INFO L479 AbstractCegarLoop]: Abstraction has 1504 states and 1852 transitions. [2020-10-12 14:01:07,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:01:07,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 1852 transitions. [2020-10-12 14:01:07,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2020-10-12 14:01:07,149 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:07,150 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 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] [2020-10-12 14:01:07,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 14:01:07,150 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:07,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:07,151 INFO L82 PathProgramCache]: Analyzing trace with hash 503434658, now seen corresponding path program 1 times [2020-10-12 14:01:07,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:07,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [948040191] [2020-10-12 14:01:07,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:07,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:07,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:07,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:07,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:07,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:11,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:11,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 403 [2020-10-12 14:01:11,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:01:11,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4572 [2020-10-12 14:01:11,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:11,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:01:11,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 305 [2020-10-12 14:01:11,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 14:01:11,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:11,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:11,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:11,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:11,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:11,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:11,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:11,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:01:11,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:11,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:11,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:11,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:11,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:11,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:11,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:11,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:11,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:11,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:11,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:01:11,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:11,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:11,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:11,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:11,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:11,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:01:11,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:11,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:12,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:12,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:01:12,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:12,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:01:12,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:12,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:12,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:12,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:12,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:12,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:01:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:12,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:12,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:12,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 14:01:12,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:12,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 14:01:12,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:12,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:12,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:12,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 14:01:12,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:12,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-10-12 14:01:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:12,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:12,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:12,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:12,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:01:12,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:01:12,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-12 14:01:12,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:12,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:01:12,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:12,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 14:01:12,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:12,913 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 263 proven. 2 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-12 14:01:12,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [948040191] [2020-10-12 14:01:12,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:12,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:01:12,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490014437] [2020-10-12 14:01:12,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:01:12,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:12,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:01:12,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:01:12,915 INFO L87 Difference]: Start difference. First operand 1504 states and 1852 transitions. Second operand 7 states. [2020-10-12 14:01:14,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:14,600 INFO L93 Difference]: Finished difference Result 2713 states and 3419 transitions. [2020-10-12 14:01:14,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:01:14,600 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 387 [2020-10-12 14:01:14,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:14,609 INFO L225 Difference]: With dead ends: 2713 [2020-10-12 14:01:14,610 INFO L226 Difference]: Without dead ends: 1548 [2020-10-12 14:01:14,613 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:01:14,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2020-10-12 14:01:14,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1504. [2020-10-12 14:01:14,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1504 states. [2020-10-12 14:01:14,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 1842 transitions. [2020-10-12 14:01:14,648 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 1842 transitions. Word has length 387 [2020-10-12 14:01:14,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:14,649 INFO L479 AbstractCegarLoop]: Abstraction has 1504 states and 1842 transitions. [2020-10-12 14:01:14,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:01:14,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 1842 transitions. [2020-10-12 14:01:14,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2020-10-12 14:01:14,656 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:14,656 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 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] [2020-10-12 14:01:14,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 14:01:14,657 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:14,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:14,657 INFO L82 PathProgramCache]: Analyzing trace with hash 695436746, now seen corresponding path program 1 times [2020-10-12 14:01:14,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:14,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1609067362] [2020-10-12 14:01:14,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:14,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:14,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:14,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:15,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:17,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:19,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:19,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 415 [2020-10-12 14:01:19,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:01:19,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4634 [2020-10-12 14:01:19,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:19,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:01:19,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-12 14:01:19,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-12 14:01:19,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:19,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:19,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:19,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:19,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:19,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:19,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:01:19,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:19,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:19,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:19,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:19,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:19,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:19,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:19,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:19,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:19,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:19,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:01:19,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:19,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:19,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:19,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:19,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:19,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:01:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:19,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:19,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:19,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:01:19,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:19,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 14:01:19,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:19,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:19,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:19,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 14:01:19,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:19,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:01:19,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:19,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:19,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:19,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:19,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 14:01:19,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:01:19,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-12 14:01:19,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:19,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:01:19,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:19,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 14:01:19,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:19,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2020-10-12 14:01:19,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:19,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:19,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:19,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:01:19,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:19,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 14:01:19,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:19,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:01:19,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:19,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 14:01:19,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:20,065 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 353 proven. 82 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-12 14:01:20,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1609067362] [2020-10-12 14:01:20,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:20,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 14:01:20,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711450392] [2020-10-12 14:01:20,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 14:01:20,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:20,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 14:01:20,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-12 14:01:20,067 INFO L87 Difference]: Start difference. First operand 1504 states and 1842 transitions. Second operand 9 states. [2020-10-12 14:01:22,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:22,448 INFO L93 Difference]: Finished difference Result 3614 states and 4657 transitions. [2020-10-12 14:01:22,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 14:01:22,450 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 399 [2020-10-12 14:01:22,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:22,459 INFO L225 Difference]: With dead ends: 3614 [2020-10-12 14:01:22,459 INFO L226 Difference]: Without dead ends: 2276 [2020-10-12 14:01:22,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-12 14:01:22,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2276 states. [2020-10-12 14:01:22,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2276 to 2248. [2020-10-12 14:01:22,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2248 states. [2020-10-12 14:01:22,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2248 states to 2248 states and 2454 transitions. [2020-10-12 14:01:22,513 INFO L78 Accepts]: Start accepts. Automaton has 2248 states and 2454 transitions. Word has length 399 [2020-10-12 14:01:22,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:22,514 INFO L479 AbstractCegarLoop]: Abstraction has 2248 states and 2454 transitions. [2020-10-12 14:01:22,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 14:01:22,514 INFO L276 IsEmpty]: Start isEmpty. Operand 2248 states and 2454 transitions. [2020-10-12 14:01:22,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2020-10-12 14:01:22,532 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:22,533 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:01:22,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 14:01:22,533 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:22,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:22,534 INFO L82 PathProgramCache]: Analyzing trace with hash -11465202, now seen corresponding path program 1 times [2020-10-12 14:01:22,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:22,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [963184829] [2020-10-12 14:01:22,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:22,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:22,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:22,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:23,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:23,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:23,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:25,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:25,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:27,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:27,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 651 [2020-10-12 14:01:27,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 14:01:27,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 14:01:27,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:27,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:01:27,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 478 [2020-10-12 14:01:27,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 14:01:27,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:27,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:27,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:27,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:27,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:27,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:27,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:27,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:01:27,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:27,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:27,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:27,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:27,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:27,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:27,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:27,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:27,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:27,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:27,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:27,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:01:27,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:27,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:27,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:27,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:27,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:27,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:01:27,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:27,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:27,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:27,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:01:27,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:27,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:01:27,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:27,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:27,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:27,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:27,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:27,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:01:27,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:27,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:27,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:27,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:27,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:27,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:01:27,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:27,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:27,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:27,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:27,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:27,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-12 14:01:27,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:27,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:27,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:27,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-12 14:01:27,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:27,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 14:01:27,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:27,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:27,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:27,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 14:01:27,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:27,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:01:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:28,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:28,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:28,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 14:01:28,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:28,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-12 14:01:28,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:28,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 14:01:28,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:28,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 14:01:28,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:28,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2020-10-12 14:01:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:28,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:28,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:28,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:28,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:01:28,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:01:28,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-12 14:01:28,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:28,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:01:28,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:28,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 14:01:28,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:28,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1390 backedges. 683 proven. 50 refuted. 0 times theorem prover too weak. 657 trivial. 0 not checked. [2020-10-12 14:01:28,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [963184829] [2020-10-12 14:01:28,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:28,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 14:01:28,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643910919] [2020-10-12 14:01:28,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 14:01:28,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:28,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 14:01:28,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:01:28,976 INFO L87 Difference]: Start difference. First operand 2248 states and 2454 transitions. Second operand 10 states. [2020-10-12 14:01:31,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:31,676 INFO L93 Difference]: Finished difference Result 5137 states and 5752 transitions. [2020-10-12 14:01:31,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 14:01:31,677 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 631 [2020-10-12 14:01:31,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:31,691 INFO L225 Difference]: With dead ends: 5137 [2020-10-12 14:01:31,692 INFO L226 Difference]: Without dead ends: 3228 [2020-10-12 14:01:31,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2020-10-12 14:01:31,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3228 states. [2020-10-12 14:01:31,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3228 to 3186. [2020-10-12 14:01:31,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3186 states. [2020-10-12 14:01:31,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 3521 transitions. [2020-10-12 14:01:31,767 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 3521 transitions. Word has length 631 [2020-10-12 14:01:31,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:31,768 INFO L479 AbstractCegarLoop]: Abstraction has 3186 states and 3521 transitions. [2020-10-12 14:01:31,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 14:01:31,768 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 3521 transitions. [2020-10-12 14:01:31,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 658 [2020-10-12 14:01:31,776 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:31,776 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:01:31,776 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 14:01:31,777 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:31,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:31,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1645003230, now seen corresponding path program 1 times [2020-10-12 14:01:31,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:31,778 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [176085695] [2020-10-12 14:01:31,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:31,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:32,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:32,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:34,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:34,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:35,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:36,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:36,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 677 [2020-10-12 14:01:36,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:01:36,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-12 14:01:36,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:36,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:01:36,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 579 [2020-10-12 14:01:36,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-12 14:01:36,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:36,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:36,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:36,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:36,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:36,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:36,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:36,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:01:36,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:36,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:36,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:36,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:36,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:37,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:37,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:37,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:37,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:37,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:37,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:01:37,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:37,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:37,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:37,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:37,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:37,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:01:37,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:37,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:37,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:37,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:01:37,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:37,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:01:37,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:37,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:37,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:37,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:37,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:37,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:01:37,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:37,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:37,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:37,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:37,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:37,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:01:37,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:37,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:37,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:37,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:37,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:37,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-12 14:01:37,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:37,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:37,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:37,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 14:01:37,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:37,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:01:37,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:37,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:37,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:37,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:37,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:37,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-10-12 14:01:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:37,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:37,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:37,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 14:01:37,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:37,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:01:37,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:37,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:37,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:37,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 14:01:37,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:37,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 569 [2020-10-12 14:01:37,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:37,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:37,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:37,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:37,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:01:37,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:01:37,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-12 14:01:37,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:37,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:01:37,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:37,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 14:01:37,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:38,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1390 backedges. 446 proven. 2 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2020-10-12 14:01:38,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [176085695] [2020-10-12 14:01:38,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:38,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 14:01:38,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793873561] [2020-10-12 14:01:38,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 14:01:38,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:38,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 14:01:38,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:01:38,169 INFO L87 Difference]: Start difference. First operand 3186 states and 3521 transitions. Second operand 10 states. [2020-10-12 14:01:40,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:40,413 INFO L93 Difference]: Finished difference Result 6214 states and 6903 transitions. [2020-10-12 14:01:40,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 14:01:40,413 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 657 [2020-10-12 14:01:40,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:40,428 INFO L225 Difference]: With dead ends: 6214 [2020-10-12 14:01:40,428 INFO L226 Difference]: Without dead ends: 3290 [2020-10-12 14:01:40,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2020-10-12 14:01:40,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3290 states. [2020-10-12 14:01:40,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3290 to 3186. [2020-10-12 14:01:40,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3186 states. [2020-10-12 14:01:40,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 3482 transitions. [2020-10-12 14:01:40,511 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 3482 transitions. Word has length 657 [2020-10-12 14:01:40,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:40,513 INFO L479 AbstractCegarLoop]: Abstraction has 3186 states and 3482 transitions. [2020-10-12 14:01:40,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 14:01:40,513 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 3482 transitions. [2020-10-12 14:01:40,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 729 [2020-10-12 14:01:40,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:40,522 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:01:40,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 14:01:40,522 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:40,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:40,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1940247089, now seen corresponding path program 1 times [2020-10-12 14:01:40,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:40,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1791488064] [2020-10-12 14:01:40,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:40,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:40,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:41,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:42,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:45,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:45,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:45,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 748 [2020-10-12 14:01:45,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:01:45,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-12 14:01:45,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:45,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:01:45,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 478 [2020-10-12 14:01:45,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-12 14:01:45,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:45,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:45,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:45,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:45,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:45,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:45,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:01:45,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:45,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:45,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:45,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:45,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:45,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:45,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:45,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:45,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:45,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:45,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:45,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:01:45,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:45,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:45,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:45,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:45,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:45,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:01:45,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:45,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:45,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:45,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:01:45,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:45,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:01:45,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:45,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:45,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:45,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:45,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:45,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:01:45,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:45,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:45,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:45,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:45,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:45,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:01:45,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:45,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:45,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:45,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:45,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:45,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-12 14:01:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:45,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:46,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:46,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-12 14:01:46,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:46,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-12 14:01:46,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:46,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:46,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:46,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 14:01:46,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:46,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:01:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:46,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:46,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:46,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:46,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:01:46,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:01:46,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 517 [2020-10-12 14:01:46,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:01:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:01:46,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:47,184 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 49 [2020-10-12 14:01:47,397 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 53 [2020-10-12 14:01:47,638 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 57 [2020-10-12 14:01:47,894 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2020-10-12 14:01:48,147 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2020-10-12 14:01:48,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 649 [2020-10-12 14:01:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:48,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:48,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:48,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 14:01:48,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:48,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:01:48,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:48,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:48,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 14:01:48,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:48,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:50,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1525 backedges. 517 proven. 73 refuted. 0 times theorem prover too weak. 935 trivial. 0 not checked. [2020-10-12 14:01:50,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1791488064] [2020-10-12 14:01:50,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:50,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:01:50,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060222675] [2020-10-12 14:01:50,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:01:50,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:50,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:01:50,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:01:50,455 INFO L87 Difference]: Start difference. First operand 3186 states and 3482 transitions. Second operand 13 states. [2020-10-12 14:01:51,076 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2020-10-12 14:01:51,325 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2020-10-12 14:01:51,698 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2020-10-12 14:01:51,932 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2020-10-12 14:01:52,227 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2020-10-12 14:01:52,541 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2020-10-12 14:01:52,835 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 88 [2020-10-12 14:01:53,743 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2020-10-12 14:01:53,981 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2020-10-12 14:01:54,345 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2020-10-12 14:01:54,709 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 63 [2020-10-12 14:01:55,100 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2020-10-12 14:01:55,417 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 73 [2020-10-12 14:01:55,684 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 58 [2020-10-12 14:01:55,956 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2020-10-12 14:01:56,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:56,270 INFO L93 Difference]: Finished difference Result 6202 states and 6815 transitions. [2020-10-12 14:01:56,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 14:01:56,270 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 728 [2020-10-12 14:01:56,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:56,284 INFO L225 Difference]: With dead ends: 6202 [2020-10-12 14:01:56,284 INFO L226 Difference]: Without dead ends: 3196 [2020-10-12 14:01:56,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=280, Invalid=712, Unknown=0, NotChecked=0, Total=992 [2020-10-12 14:01:56,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3196 states. [2020-10-12 14:01:56,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3196 to 3182. [2020-10-12 14:01:56,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3182 states. [2020-10-12 14:01:56,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3182 states to 3182 states and 3457 transitions. [2020-10-12 14:01:56,355 INFO L78 Accepts]: Start accepts. Automaton has 3182 states and 3457 transitions. Word has length 728 [2020-10-12 14:01:56,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:56,356 INFO L479 AbstractCegarLoop]: Abstraction has 3182 states and 3457 transitions. [2020-10-12 14:01:56,356 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:01:56,356 INFO L276 IsEmpty]: Start isEmpty. Operand 3182 states and 3457 transitions. [2020-10-12 14:01:56,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 755 [2020-10-12 14:01:56,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:56,365 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:01:56,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 14:01:56,365 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:56,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:56,366 INFO L82 PathProgramCache]: Analyzing trace with hash 792433821, now seen corresponding path program 1 times [2020-10-12 14:01:56,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:56,366 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1540476914] [2020-10-12 14:01:56,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:56,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:56,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:56,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:57,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:01,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:01,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 774 [2020-10-12 14:02:01,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:02:01,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-12 14:02:01,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:01,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:02:01,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 504 [2020-10-12 14:02:01,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-12 14:02:01,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:01,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:01,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:01,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:01,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:01,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:01,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:01,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:02:01,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:01,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:01,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:01,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:01,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:01,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:01,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:01,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:01,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:01,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:01,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:02:01,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:01,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:01,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:01,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:01,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:01,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:01,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:01,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:01,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:01,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:01,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:01,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:02:01,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:01,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:01,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:01,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:01,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:01,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:01,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:01,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:01,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:01,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:01,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:01,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:02:01,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:01,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:01,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:01,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:01,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:01,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-12 14:02:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:01,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:01,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:01,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 14:02:01,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:01,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-12 14:02:01,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:01,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:01,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:01,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-12 14:02:01,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:01,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-10-12 14:02:01,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:01,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:02,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:02,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:02,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:02,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:02:02,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 462 [2020-10-12 14:02:02,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:02,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:02:02,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:02,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:02:02,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:03,104 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-10-12 14:02:03,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 675 [2020-10-12 14:02:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:03,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:03,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:03,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 14:02:03,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:03,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:02:03,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:03,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:03,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 14:02:03,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:03,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:04,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1551 backedges. 543 proven. 73 refuted. 0 times theorem prover too weak. 935 trivial. 0 not checked. [2020-10-12 14:02:04,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1540476914] [2020-10-12 14:02:04,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:04,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:02:04,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912257210] [2020-10-12 14:02:04,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:02:04,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:04,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:02:04,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:02:04,716 INFO L87 Difference]: Start difference. First operand 3182 states and 3457 transitions. Second operand 13 states. [2020-10-12 14:02:05,642 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-12 14:02:05,897 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-10-12 14:02:06,062 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-10-12 14:02:06,218 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-10-12 14:02:06,455 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-12 14:02:06,678 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2020-10-12 14:02:07,450 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2020-10-12 14:02:07,938 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2020-10-12 14:02:08,143 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2020-10-12 14:02:08,329 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2020-10-12 14:02:08,641 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2020-10-12 14:02:08,899 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2020-10-12 14:02:09,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:09,233 INFO L93 Difference]: Finished difference Result 6182 states and 6749 transitions. [2020-10-12 14:02:09,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:02:09,234 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 754 [2020-10-12 14:02:09,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:09,247 INFO L225 Difference]: With dead ends: 6182 [2020-10-12 14:02:09,247 INFO L226 Difference]: Without dead ends: 3361 [2020-10-12 14:02:09,254 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=252, Invalid=618, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:02:09,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3361 states. [2020-10-12 14:02:09,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3361 to 3355. [2020-10-12 14:02:09,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3355 states. [2020-10-12 14:02:09,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 3636 transitions. [2020-10-12 14:02:09,317 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 3636 transitions. Word has length 754 [2020-10-12 14:02:09,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:09,318 INFO L479 AbstractCegarLoop]: Abstraction has 3355 states and 3636 transitions. [2020-10-12 14:02:09,318 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:02:09,318 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 3636 transitions. [2020-10-12 14:02:09,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 773 [2020-10-12 14:02:09,327 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:09,328 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:02:09,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 14:02:09,328 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:09,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:09,329 INFO L82 PathProgramCache]: Analyzing trace with hash 2110413465, now seen corresponding path program 1 times [2020-10-12 14:02:09,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:09,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1106657482] [2020-10-12 14:02:09,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:09,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:09,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:09,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:09,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:10,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:12,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:14,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:14,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 792 [2020-10-12 14:02:14,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:02:14,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-12 14:02:14,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:14,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:02:14,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 522 [2020-10-12 14:02:14,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-12 14:02:14,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:14,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:14,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:14,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:14,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:14,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:14,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:14,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:02:14,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:14,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:14,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:14,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:14,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:14,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:14,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:14,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:14,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:14,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:14,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:02:14,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:14,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:14,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:14,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:14,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 41 [2020-10-12 14:02:14,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:14,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:14,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:14,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:14,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:14,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:02:14,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:14,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:14,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:14,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:14,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:14,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:14,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:14,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:14,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:14,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:14,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:02:14,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:14,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:14,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:14,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:14,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:14,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-12 14:02:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:14,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:14,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:14,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:02:14,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:14,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-12 14:02:14,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:14,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:14,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:14,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-12 14:02:14,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:14,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2020-10-12 14:02:14,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:14,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:15,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:15,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:15,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:15,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:02:15,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 840 [2020-10-12 14:02:15,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:15,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:02:15,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:15,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:02:15,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:16,365 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 50 [2020-10-12 14:02:16,575 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 53 [2020-10-12 14:02:16,790 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2020-10-12 14:02:17,014 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2020-10-12 14:02:17,260 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-10-12 14:02:17,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 693 [2020-10-12 14:02:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:17,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:17,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:17,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 14:02:17,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:17,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:02:17,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:17,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:17,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 14:02:17,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:17,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:19,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1569 backedges. 561 proven. 73 refuted. 0 times theorem prover too weak. 935 trivial. 0 not checked. [2020-10-12 14:02:19,595 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1106657482] [2020-10-12 14:02:19,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:19,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:02:19,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667224956] [2020-10-12 14:02:19,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:02:19,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:19,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:02:19,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:02:19,597 INFO L87 Difference]: Start difference. First operand 3355 states and 3636 transitions. Second operand 13 states. [2020-10-12 14:02:20,495 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2020-10-12 14:02:20,740 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-10-12 14:02:21,038 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-10-12 14:02:21,275 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2020-10-12 14:02:21,620 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 77 [2020-10-12 14:02:22,024 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2020-10-12 14:02:22,429 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 92 [2020-10-12 14:02:22,926 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 74 [2020-10-12 14:02:23,221 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2020-10-12 14:02:23,943 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2020-10-12 14:02:24,202 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 57 [2020-10-12 14:02:24,519 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2020-10-12 14:02:24,756 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2020-10-12 14:02:25,186 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2020-10-12 14:02:25,583 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 75 [2020-10-12 14:02:26,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:26,207 INFO L93 Difference]: Finished difference Result 6536 states and 7115 transitions. [2020-10-12 14:02:26,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:02:26,208 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 772 [2020-10-12 14:02:26,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:26,219 INFO L225 Difference]: With dead ends: 6536 [2020-10-12 14:02:26,220 INFO L226 Difference]: Without dead ends: 3445 [2020-10-12 14:02:26,226 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=263, Invalid=667, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:02:26,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3445 states. [2020-10-12 14:02:26,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3445 to 3429. [2020-10-12 14:02:26,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3429 states. [2020-10-12 14:02:26,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3429 states to 3429 states and 3711 transitions. [2020-10-12 14:02:26,289 INFO L78 Accepts]: Start accepts. Automaton has 3429 states and 3711 transitions. Word has length 772 [2020-10-12 14:02:26,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:26,290 INFO L479 AbstractCegarLoop]: Abstraction has 3429 states and 3711 transitions. [2020-10-12 14:02:26,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:02:26,290 INFO L276 IsEmpty]: Start isEmpty. Operand 3429 states and 3711 transitions. [2020-10-12 14:02:26,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 849 [2020-10-12 14:02:26,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:26,300 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:02:26,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 14:02:26,301 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:26,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:26,301 INFO L82 PathProgramCache]: Analyzing trace with hash -652008015, now seen corresponding path program 1 times [2020-10-12 14:02:26,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:26,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [547768507] [2020-10-12 14:02:26,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:26,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:26,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:26,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:26,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:31,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:31,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:31,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 870 [2020-10-12 14:02:31,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:02:31,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-12 14:02:31,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:31,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:02:31,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 343 [2020-10-12 14:02:31,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-12 14:02:31,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:31,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:31,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:31,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:31,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:31,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:31,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:31,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:02:31,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:31,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:31,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:31,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:31,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:31,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:31,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:31,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:31,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:31,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:31,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:31,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:02:31,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:31,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:31,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:31,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:31,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:31,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:31,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:31,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:31,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:31,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:31,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:31,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:31,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:31,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:31,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:31,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:31,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:31,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:31,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:31,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:31,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:31,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:31,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-12 14:02:31,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:31,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:31,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:31,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 14:02:31,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:31,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-12 14:02:31,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:31,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:31,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:32,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:32,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:02:32,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:02:32,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 407 [2020-10-12 14:02:32,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:32,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:02:32,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:32,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-12 14:02:32,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:32,875 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 43 [2020-10-12 14:02:33,135 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 69 [2020-10-12 14:02:33,432 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 74 [2020-10-12 14:02:33,762 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2020-10-12 14:02:34,105 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 80 [2020-10-12 14:02:34,462 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 85 [2020-10-12 14:02:34,606 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2020-10-12 14:02:35,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2020-10-12 14:02:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:35,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:35,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:35,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:02:35,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:35,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:02:35,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:35,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:35,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 14:02:35,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:35,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:35,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 590 [2020-10-12 14:02:35,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:35,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:35,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:35,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:35,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:35,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 14:02:35,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:35,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:35,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-12 14:02:35,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:35,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:35,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 769 [2020-10-12 14:02:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:35,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:35,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:35,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 14:02:35,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:35,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:02:35,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:35,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:35,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 14:02:35,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:35,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:37,806 INFO L134 CoverageAnalysis]: Checked inductivity of 2029 backedges. 408 proven. 320 refuted. 0 times theorem prover too weak. 1301 trivial. 0 not checked. [2020-10-12 14:02:37,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [547768507] [2020-10-12 14:02:37,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:37,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:02:37,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658394687] [2020-10-12 14:02:37,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:02:37,816 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:37,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:02:37,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:02:37,816 INFO L87 Difference]: Start difference. First operand 3429 states and 3711 transitions. Second operand 13 states. [2020-10-12 14:02:38,697 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2020-10-12 14:02:38,893 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2020-10-12 14:02:39,221 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 68 [2020-10-12 14:02:39,464 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 72 [2020-10-12 14:02:39,649 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2020-10-12 14:02:40,403 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 76 [2020-10-12 14:02:41,058 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 91 [2020-10-12 14:02:41,621 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 53 [2020-10-12 14:02:41,851 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2020-10-12 14:02:42,205 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2020-10-12 14:02:42,488 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2020-10-12 14:02:42,930 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 69 [2020-10-12 14:02:43,359 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 72 [2020-10-12 14:02:43,812 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 88 [2020-10-12 14:02:44,443 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 96 [2020-10-12 14:02:44,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:44,645 INFO L93 Difference]: Finished difference Result 6862 states and 7438 transitions. [2020-10-12 14:02:44,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:02:44,646 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 848 [2020-10-12 14:02:44,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:44,665 INFO L225 Difference]: With dead ends: 6862 [2020-10-12 14:02:44,666 INFO L226 Difference]: Without dead ends: 3471 [2020-10-12 14:02:44,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=260, Invalid=670, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:02:44,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3471 states. [2020-10-12 14:02:44,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3471 to 3354. [2020-10-12 14:02:44,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3354 states. [2020-10-12 14:02:44,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3354 states to 3354 states and 3633 transitions. [2020-10-12 14:02:44,740 INFO L78 Accepts]: Start accepts. Automaton has 3354 states and 3633 transitions. Word has length 848 [2020-10-12 14:02:44,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:44,741 INFO L479 AbstractCegarLoop]: Abstraction has 3354 states and 3633 transitions. [2020-10-12 14:02:44,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:02:44,741 INFO L276 IsEmpty]: Start isEmpty. Operand 3354 states and 3633 transitions. [2020-10-12 14:02:44,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 856 [2020-10-12 14:02:44,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:44,751 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:02:44,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 14:02:44,751 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:44,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:44,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1117044550, now seen corresponding path program 1 times [2020-10-12 14:02:44,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:44,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1845374225] [2020-10-12 14:02:44,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:44,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:45,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:45,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:45,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:49,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:49,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 877 [2020-10-12 14:02:49,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:02:49,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-10-12 14:02:49,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:49,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:02:49,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-12 14:02:49,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-12 14:02:49,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:50,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:50,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:50,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:50,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:50,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:50,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:02:50,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:50,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:50,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:50,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:50,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:50,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:50,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:50,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:50,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:50,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:50,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:50,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:50,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:50,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:50,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:50,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:50,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:50,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:50,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:50,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:50,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:50,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:50,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:50,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:50,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:50,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:50,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:50,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:50,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:50,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:50,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:50,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:50,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:02:50,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:50,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 14:02:50,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:50,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:50,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:50,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-12 14:02:50,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:50,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:02:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:50,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:50,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:50,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:50,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:02:50,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:02:50,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 453 [2020-10-12 14:02:50,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:50,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:02:50,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:50,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-12 14:02:50,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:51,167 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-10-12 14:02:51,327 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2020-10-12 14:02:51,471 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 53 [2020-10-12 14:02:51,632 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2020-10-12 14:02:51,807 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2020-10-12 14:02:52,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-12 14:02:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:52,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:52,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:52,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:02:52,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:52,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:02:52,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:52,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:52,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 14:02:52,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:52,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:52,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2020-10-12 14:02:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:52,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:52,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:52,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:52,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:52,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 14:02:52,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:52,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:52,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-12 14:02:52,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:52,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:52,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 776 [2020-10-12 14:02:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:52,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:52,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:52,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 14:02:52,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:52,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:02:52,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:52,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:52,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 14:02:52,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:52,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:53,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2043 backedges. 415 proven. 320 refuted. 0 times theorem prover too weak. 1308 trivial. 0 not checked. [2020-10-12 14:02:53,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1845374225] [2020-10-12 14:02:53,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:53,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:02:53,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837535241] [2020-10-12 14:02:53,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:02:53,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:53,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:02:53,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:02:53,606 INFO L87 Difference]: Start difference. First operand 3354 states and 3633 transitions. Second operand 13 states. [2020-10-12 14:02:54,229 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-10-12 14:02:54,701 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-12 14:02:54,973 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-12 14:02:55,131 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2020-10-12 14:02:55,341 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2020-10-12 14:02:55,572 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 87 [2020-10-12 14:02:55,825 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 56 [2020-10-12 14:02:56,574 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2020-10-12 14:02:57,066 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2020-10-12 14:02:57,356 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 59 [2020-10-12 14:02:57,529 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2020-10-12 14:02:57,748 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2020-10-12 14:02:57,968 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 69 [2020-10-12 14:02:58,276 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 75 [2020-10-12 14:02:58,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:58,622 INFO L93 Difference]: Finished difference Result 6892 states and 7481 transitions. [2020-10-12 14:02:58,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:02:58,624 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 855 [2020-10-12 14:02:58,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:58,633 INFO L225 Difference]: With dead ends: 6892 [2020-10-12 14:02:58,634 INFO L226 Difference]: Without dead ends: 3678 [2020-10-12 14:02:58,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=253, Invalid=617, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:02:58,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3678 states. [2020-10-12 14:02:58,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3678 to 3590. [2020-10-12 14:02:58,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3590 states. [2020-10-12 14:02:58,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3590 states to 3590 states and 3875 transitions. [2020-10-12 14:02:58,708 INFO L78 Accepts]: Start accepts. Automaton has 3590 states and 3875 transitions. Word has length 855 [2020-10-12 14:02:58,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:58,709 INFO L479 AbstractCegarLoop]: Abstraction has 3590 states and 3875 transitions. [2020-10-12 14:02:58,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:02:58,709 INFO L276 IsEmpty]: Start isEmpty. Operand 3590 states and 3875 transitions. [2020-10-12 14:02:58,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 935 [2020-10-12 14:02:58,722 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:58,724 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 14:02:58,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 14:02:58,724 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:58,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:58,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1151762601, now seen corresponding path program 1 times [2020-10-12 14:02:58,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:58,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [932012050] [2020-10-12 14:02:58,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:59,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:59,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:00,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:00,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:03,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:03,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 956 [2020-10-12 14:03:03,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:03:03,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-12 14:03:03,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:03,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:03:03,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 686 [2020-10-12 14:03:03,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-12 14:03:03,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:04,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:04,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:04,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:04,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:04,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:04,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:03:04,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:04,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:04,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:04,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:04,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:04,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:04,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:04,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:04,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:04,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:04,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:04,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:03:04,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:04,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:04,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:04,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:04,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:04,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:04,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:04,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:04,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:04,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:04,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:04,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 14:03:04,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:04,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:04,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:04,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:04,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:04,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:04,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:04,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:04,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:04,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:04,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:03:04,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:04,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:04,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:04,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:04,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:03:04,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:04,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:04,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:04,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:04,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 14:03:04,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:04,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 14:03:04,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:04,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:04,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-12 14:03:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:04,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:04,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:04,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 14:03:04,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:04,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-12 14:03:04,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:04,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:04,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:04,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-12 14:03:04,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:04,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-12 14:03:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:05,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:05,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:05,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:05,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:05,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:03:05,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 614 [2020-10-12 14:03:05,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:05,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:03:05,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:05,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:03:05,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:06,206 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 42 [2020-10-12 14:03:06,455 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2020-10-12 14:03:06,721 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 71 [2020-10-12 14:03:07,011 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 73 [2020-10-12 14:03:07,308 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 77 [2020-10-12 14:03:07,612 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 79 [2020-10-12 14:03:08,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 855 [2020-10-12 14:03:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:08,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:08,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:08,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 14:03:08,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:08,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:03:08,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:08,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:08,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 14:03:08,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:08,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:10,484 INFO L134 CoverageAnalysis]: Checked inductivity of 2313 backedges. 735 proven. 73 refuted. 0 times theorem prover too weak. 1505 trivial. 0 not checked. [2020-10-12 14:03:10,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [932012050] [2020-10-12 14:03:10,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:10,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:03:10,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771733803] [2020-10-12 14:03:10,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:03:10,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:10,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:03:10,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:03:10,486 INFO L87 Difference]: Start difference. First operand 3590 states and 3875 transitions. Second operand 13 states. [2020-10-12 14:03:11,523 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2020-10-12 14:03:11,731 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2020-10-12 14:03:11,979 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 66 [2020-10-12 14:03:12,260 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 70 [2020-10-12 14:03:12,525 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 72 [2020-10-12 14:03:12,889 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 88 [2020-10-12 14:03:13,270 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 83 [2020-10-12 14:03:13,593 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 61 [2020-10-12 14:03:13,785 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 48 [2020-10-12 14:03:14,808 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 54 [2020-10-12 14:03:15,025 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 57 [2020-10-12 14:03:15,273 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2020-10-12 14:03:15,560 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2020-10-12 14:03:15,846 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 65 [2020-10-12 14:03:16,205 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 69 [2020-10-12 14:03:16,571 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 88 [2020-10-12 14:03:16,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:16,871 INFO L93 Difference]: Finished difference Result 7180 states and 7757 transitions. [2020-10-12 14:03:16,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:03:16,877 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 934 [2020-10-12 14:03:16,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:16,886 INFO L225 Difference]: With dead ends: 7180 [2020-10-12 14:03:16,886 INFO L226 Difference]: Without dead ends: 3345 [2020-10-12 14:03:16,893 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=268, Invalid=662, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:03:16,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3345 states. [2020-10-12 14:03:16,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3345 to 3337. [2020-10-12 14:03:16,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3337 states. [2020-10-12 14:03:16,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3337 states to 3337 states and 3589 transitions. [2020-10-12 14:03:16,950 INFO L78 Accepts]: Start accepts. Automaton has 3337 states and 3589 transitions. Word has length 934 [2020-10-12 14:03:16,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:16,950 INFO L479 AbstractCegarLoop]: Abstraction has 3337 states and 3589 transitions. [2020-10-12 14:03:16,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:03:16,951 INFO L276 IsEmpty]: Start isEmpty. Operand 3337 states and 3589 transitions. [2020-10-12 14:03:16,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 937 [2020-10-12 14:03:16,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:16,964 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:03:16,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 14:03:16,965 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:16,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:16,965 INFO L82 PathProgramCache]: Analyzing trace with hash -58065411, now seen corresponding path program 1 times [2020-10-12 14:03:16,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:16,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [412067622] [2020-10-12 14:03:16,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:17,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:17,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:19,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:19,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 960 [2020-10-12 14:03:19,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:03:19,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2735 [2020-10-12 14:03:19,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:19,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:19,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 947 [2020-10-12 14:03:19,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 14:03:19,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:20,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:20,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:20,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:20,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:20,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:20,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:20,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:03:20,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:20,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:20,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:20,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:20,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:20,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:20,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:20,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:20,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:20,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:20,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:20,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:03:20,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:20,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:20,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:20,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:20,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:20,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:20,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:20,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:20,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:20,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:20,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:03:20,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:20,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:20,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:20,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:20,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:20,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:20,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:20,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:20,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:20,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:20,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:20,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:03:20,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:20,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:20,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:20,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:20,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:20,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:20,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:20,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:20,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:20,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:20,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:20,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:03:20,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:20,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:20,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:20,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:20,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:20,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:20,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:20,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:20,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:20,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:20,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:03:20,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:20,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:20,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:20,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:20,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:20,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:03:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:20,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:20,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:20,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:03:20,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:20,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:20,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:20,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:20,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:20,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:20,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:20,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:03:20,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:20,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:20,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:20,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:20,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:20,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:03:20,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:20,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:20,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:20,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:20,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:20,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:03:20,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:20,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:20,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:20,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 14:03:20,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:20,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 14:03:20,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:20,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:20,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:20,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 14:03:20,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:21,230 INFO L134 CoverageAnalysis]: Checked inductivity of 2604 backedges. 61 proven. 8 refuted. 0 times theorem prover too weak. 2535 trivial. 0 not checked. [2020-10-12 14:03:21,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [412067622] [2020-10-12 14:03:21,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:21,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:03:21,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311092143] [2020-10-12 14:03:21,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:03:21,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:21,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:03:21,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:03:21,238 INFO L87 Difference]: Start difference. First operand 3337 states and 3589 transitions. Second operand 5 states. [2020-10-12 14:03:22,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:22,809 INFO L93 Difference]: Finished difference Result 7050 states and 7616 transitions. [2020-10-12 14:03:22,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:03:22,810 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 936 [2020-10-12 14:03:22,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:22,820 INFO L225 Difference]: With dead ends: 7050 [2020-10-12 14:03:22,820 INFO L226 Difference]: Without dead ends: 3717 [2020-10-12 14:03:22,828 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:03:22,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3717 states. [2020-10-12 14:03:22,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3717 to 3339. [2020-10-12 14:03:22,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3339 states. [2020-10-12 14:03:22,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3339 states to 3339 states and 3592 transitions. [2020-10-12 14:03:22,883 INFO L78 Accepts]: Start accepts. Automaton has 3339 states and 3592 transitions. Word has length 936 [2020-10-12 14:03:22,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:22,884 INFO L479 AbstractCegarLoop]: Abstraction has 3339 states and 3592 transitions. [2020-10-12 14:03:22,884 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:03:22,884 INFO L276 IsEmpty]: Start isEmpty. Operand 3339 states and 3592 transitions. [2020-10-12 14:03:22,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 949 [2020-10-12 14:03:22,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:22,897 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:03:22,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 14:03:22,898 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:22,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:22,898 INFO L82 PathProgramCache]: Analyzing trace with hash -794310443, now seen corresponding path program 1 times [2020-10-12 14:03:22,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:22,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730827717] [2020-10-12 14:03:22,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:23,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:23,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:23,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 972 [2020-10-12 14:03:26,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:03:26,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3130 [2020-10-12 14:03:26,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:03:26,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 14:03:26,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 270 [2020-10-12 14:03:26,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:26,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:03:26,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:26,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:26,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:26,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:26,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:26,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:26,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:26,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:26,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:26,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:03:26,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:26,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:26,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:26,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:26,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:03:26,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:26,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:26,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:26,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:26,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:26,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:03:26,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:26,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:26,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:26,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:26,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:03:26,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:26,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:26,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:26,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:03:26,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:03:26,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:03:26,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:26,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:26,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 14:03:26,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:03:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:26,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-12 14:03:26,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 14:03:26,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:26,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:03:26,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:27,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:03:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:27,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:27,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:27,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:03:27,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:27,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-12 14:03:27,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:27,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:27,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:27,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 14:03:27,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:27,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2673 backedges. 1222 proven. 6 refuted. 0 times theorem prover too weak. 1445 trivial. 0 not checked. [2020-10-12 14:03:27,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730827717] [2020-10-12 14:03:27,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:27,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 14:03:27,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381063896] [2020-10-12 14:03:27,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 14:03:27,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:27,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 14:03:27,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-12 14:03:27,580 INFO L87 Difference]: Start difference. First operand 3339 states and 3592 transitions. Second operand 9 states. [2020-10-12 14:03:30,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:30,419 INFO L93 Difference]: Finished difference Result 7913 states and 8638 transitions. [2020-10-12 14:03:30,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 14:03:30,420 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 948 [2020-10-12 14:03:30,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:30,431 INFO L225 Difference]: With dead ends: 7913 [2020-10-12 14:03:30,432 INFO L226 Difference]: Without dead ends: 4764 [2020-10-12 14:03:30,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2020-10-12 14:03:30,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4764 states. [2020-10-12 14:03:30,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4764 to 4269. [2020-10-12 14:03:30,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4269 states. [2020-10-12 14:03:30,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4269 states to 4269 states and 4657 transitions. [2020-10-12 14:03:30,517 INFO L78 Accepts]: Start accepts. Automaton has 4269 states and 4657 transitions. Word has length 948 [2020-10-12 14:03:30,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:30,518 INFO L479 AbstractCegarLoop]: Abstraction has 4269 states and 4657 transitions. [2020-10-12 14:03:30,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 14:03:30,519 INFO L276 IsEmpty]: Start isEmpty. Operand 4269 states and 4657 transitions. [2020-10-12 14:03:30,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 958 [2020-10-12 14:03:30,534 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:30,535 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:03:30,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 14:03:30,535 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:30,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:30,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1425723738, now seen corresponding path program 1 times [2020-10-12 14:03:30,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:30,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1726299297] [2020-10-12 14:03:30,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:30,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:31,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:32,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:32,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 981 [2020-10-12 14:03:32,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:03:32,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2246 [2020-10-12 14:03:32,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:32,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:32,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 968 [2020-10-12 14:03:32,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 14:03:32,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:33,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:33,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:33,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:33,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:33,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:33,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:03:33,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:33,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:33,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:33,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:33,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:33,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:33,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:33,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:33,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:33,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:33,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:33,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 14:03:33,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:33,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:33,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:33,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:33,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:33,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:33,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:33,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:33,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:33,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:33,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:33,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 14:03:33,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:33,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:33,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:33,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:33,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:33,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:33,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:33,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:33,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:33,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:33,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:03:33,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:33,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:33,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:33,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:33,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:33,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:33,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:33,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:33,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:33,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:33,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:03:33,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:33,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:33,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:33,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:33,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:33,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:33,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:33,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:33,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:33,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:33,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:33,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 14:03:33,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:33,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:33,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:33,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:33,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:33,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:03:33,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:33,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:33,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:33,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:03:33,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:33,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:03:33,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:33,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:33,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:33,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:33,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:33,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:03:33,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:33,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:33,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:33,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:33,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:33,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 14:03:33,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:33,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:33,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:33,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:33,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:33,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:03:33,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:33,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:33,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:33,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 14:03:33,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:33,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 14:03:33,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:33,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:33,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:33,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-12 14:03:33,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:34,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2718 backedges. 61 proven. 8 refuted. 0 times theorem prover too weak. 2649 trivial. 0 not checked. [2020-10-12 14:03:34,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1726299297] [2020-10-12 14:03:34,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:34,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:03:34,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715519445] [2020-10-12 14:03:34,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:03:34,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:34,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:03:34,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:03:34,456 INFO L87 Difference]: Start difference. First operand 4269 states and 4657 transitions. Second operand 5 states. [2020-10-12 14:03:35,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:35,852 INFO L93 Difference]: Finished difference Result 9994 states and 11023 transitions. [2020-10-12 14:03:35,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:03:35,853 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 957 [2020-10-12 14:03:35,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:35,868 INFO L225 Difference]: With dead ends: 9994 [2020-10-12 14:03:35,868 INFO L226 Difference]: Without dead ends: 5915 [2020-10-12 14:03:35,876 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:03:35,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5915 states. [2020-10-12 14:03:35,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5915 to 5721. [2020-10-12 14:03:35,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5721 states. [2020-10-12 14:03:35,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5721 states to 5721 states and 6309 transitions. [2020-10-12 14:03:35,976 INFO L78 Accepts]: Start accepts. Automaton has 5721 states and 6309 transitions. Word has length 957 [2020-10-12 14:03:35,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:35,978 INFO L479 AbstractCegarLoop]: Abstraction has 5721 states and 6309 transitions. [2020-10-12 14:03:35,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:03:35,978 INFO L276 IsEmpty]: Start isEmpty. Operand 5721 states and 6309 transitions. [2020-10-12 14:03:35,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1061 [2020-10-12 14:03:35,997 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:35,998 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:03:35,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 14:03:35,998 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:35,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:35,999 INFO L82 PathProgramCache]: Analyzing trace with hash -688428859, now seen corresponding path program 1 times [2020-10-12 14:03:35,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:35,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [909171654] [2020-10-12 14:03:36,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:36,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:36,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:37,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:41,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:41,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1086 [2020-10-12 14:03:41,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:03:41,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-12 14:03:41,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:41,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:41,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-12 14:03:41,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-12 14:03:41,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:41,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:41,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:41,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:41,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:41,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:41,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:03:41,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:41,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:41,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:41,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:41,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:41,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:41,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:41,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:41,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:41,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:41,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:03:41,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:41,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:41,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:41,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:41,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:41,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:41,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:41,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:41,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:41,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:41,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:41,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:03:41,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:41,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:41,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:41,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:41,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:41,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:41,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:41,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:41,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:41,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:41,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:03:41,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:41,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:41,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:41,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:41,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:41,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:41,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:41,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:41,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:41,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:41,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:41,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 14:03:41,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:41,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:41,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:41,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:41,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:41,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:41,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:41,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:41,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:41,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:41,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:41,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:03:41,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:41,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:41,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:41,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:41,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:41,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:03:41,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:41,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:41,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:41,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:03:41,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:41,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:03:41,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:41,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:41,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:41,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:41,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:41,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:03:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:41,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:41,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:41,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:41,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:41,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-12 14:03:41,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:41,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:41,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:41,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-12 14:03:41,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:41,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:03:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:41,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:41,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:41,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:03:41,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:41,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-12 14:03:41,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:41,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:41,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:41,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 14:03:41,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:41,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-12 14:03:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:41,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:41,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:41,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:03:41,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:41,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:03:41,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:41,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:41,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-12 14:03:41,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:41,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:42,438 INFO L134 CoverageAnalysis]: Checked inductivity of 3477 backedges. 803 proven. 85 refuted. 0 times theorem prover too weak. 2589 trivial. 0 not checked. [2020-10-12 14:03:42,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [909171654] [2020-10-12 14:03:42,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:42,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:03:42,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488107120] [2020-10-12 14:03:42,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:03:42,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:42,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:03:42,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:03:42,440 INFO L87 Difference]: Start difference. First operand 5721 states and 6309 transitions. Second operand 7 states. [2020-10-12 14:03:43,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:43,984 INFO L93 Difference]: Finished difference Result 11998 states and 13386 transitions. [2020-10-12 14:03:43,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 14:03:43,989 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1060 [2020-10-12 14:03:43,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:44,019 INFO L225 Difference]: With dead ends: 11998 [2020-10-12 14:03:44,019 INFO L226 Difference]: Without dead ends: 6467 [2020-10-12 14:03:44,033 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:03:44,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6467 states. [2020-10-12 14:03:44,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6467 to 6461. [2020-10-12 14:03:44,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6461 states. [2020-10-12 14:03:44,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6461 states to 6461 states and 7037 transitions. [2020-10-12 14:03:44,150 INFO L78 Accepts]: Start accepts. Automaton has 6461 states and 7037 transitions. Word has length 1060 [2020-10-12 14:03:44,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:44,151 INFO L479 AbstractCegarLoop]: Abstraction has 6461 states and 7037 transitions. [2020-10-12 14:03:44,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:03:44,151 INFO L276 IsEmpty]: Start isEmpty. Operand 6461 states and 7037 transitions. [2020-10-12 14:03:44,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1502 [2020-10-12 14:03:44,179 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:44,180 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 14:03:44,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-12 14:03:44,180 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:44,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:44,181 INFO L82 PathProgramCache]: Analyzing trace with hash -586599578, now seen corresponding path program 1 times [2020-10-12 14:03:44,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:44,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964405511] [2020-10-12 14:03:44,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:44,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:44,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:45,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:47,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:47,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1533 [2020-10-12 14:03:47,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:03:47,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3444 [2020-10-12 14:03:47,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:47,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:47,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1432 [2020-10-12 14:03:47,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-12 14:03:47,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:48,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:48,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:48,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:48,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:48,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:48,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:03:48,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:48,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:48,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:48,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:48,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:48,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:48,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:48,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:48,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:48,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:48,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:48,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:48,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:48,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:48,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:48,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:48,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:48,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:48,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:48,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:48,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:48,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:48,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:48,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:48,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:48,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:48,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:48,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:48,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:48,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:48,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:48,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:48,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:48,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:03:48,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:48,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:48,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:48,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:48,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:48,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:48,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:48,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:48,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:48,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:48,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:48,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:03:48,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:48,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:48,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:48,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:48,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:48,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:48,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:48,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:48,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:48,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:48,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:48,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:03:48,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:48,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:48,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:48,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:48,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:48,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:03:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:48,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:48,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:48,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:03:48,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:48,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:03:48,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:48,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:48,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:48,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:48,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:48,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:03:48,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:48,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:48,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:48,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:48,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:48,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:03:48,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:48,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:48,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:48,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:48,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:48,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:03:48,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:48,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:48,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:48,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:03:48,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:48,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:03:48,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:48,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:48,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:48,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:48,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:48,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:03:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:48,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:48,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:48,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:03:48,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:48,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:03:48,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:48,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:48,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:48,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:48,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:48,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:03:48,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:48,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:48,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:48,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:03:48,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:48,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 14:03:48,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:48,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:48,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:48,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:48,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:48,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:03:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:48,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:48,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:48,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-12 14:03:48,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:48,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:03:48,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:48,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:48,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:48,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-12 14:03:48,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:48,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-12 14:03:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:48,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:48,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:48,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:03:48,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:48,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 14:03:48,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:48,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:48,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:48,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 14:03:48,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:49,659 INFO L134 CoverageAnalysis]: Checked inductivity of 6822 backedges. 1020 proven. 2 refuted. 0 times theorem prover too weak. 5800 trivial. 0 not checked. [2020-10-12 14:03:49,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1964405511] [2020-10-12 14:03:49,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:49,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:03:49,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285632867] [2020-10-12 14:03:49,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:03:49,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:49,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:03:49,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:03:49,662 INFO L87 Difference]: Start difference. First operand 6461 states and 7037 transitions. Second operand 7 states. [2020-10-12 14:03:51,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:51,424 INFO L93 Difference]: Finished difference Result 13104 states and 14267 transitions. [2020-10-12 14:03:51,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:03:51,432 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1501 [2020-10-12 14:03:51,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:51,448 INFO L225 Difference]: With dead ends: 13104 [2020-10-12 14:03:51,448 INFO L226 Difference]: Without dead ends: 6833 [2020-10-12 14:03:51,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:03:51,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6833 states. [2020-10-12 14:03:51,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6833 to 6459. [2020-10-12 14:03:51,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6459 states. [2020-10-12 14:03:51,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6459 states to 6459 states and 6983 transitions. [2020-10-12 14:03:51,557 INFO L78 Accepts]: Start accepts. Automaton has 6459 states and 6983 transitions. Word has length 1501 [2020-10-12 14:03:51,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:51,558 INFO L479 AbstractCegarLoop]: Abstraction has 6459 states and 6983 transitions. [2020-10-12 14:03:51,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:03:51,559 INFO L276 IsEmpty]: Start isEmpty. Operand 6459 states and 6983 transitions. [2020-10-12 14:03:51,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1517 [2020-10-12 14:03:51,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:51,582 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 14:03:51,583 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-12 14:03:51,583 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:51,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:51,583 INFO L82 PathProgramCache]: Analyzing trace with hash 952806945, now seen corresponding path program 1 times [2020-10-12 14:03:51,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:51,584 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1748688296] [2020-10-12 14:03:51,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:51,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:52,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:53,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:53,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1548 [2020-10-12 14:03:53,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:53,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1887 [2020-10-12 14:03:53,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:53,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:53,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1535 [2020-10-12 14:03:53,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 14:03:53,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:53,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:53,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:53,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:53,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:53,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:53,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:53,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:03:53,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:53,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:53,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:53,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:53,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:53,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:53,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:53,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:53,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:53,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:53,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:03:53,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:53,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:53,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:53,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:53,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:53,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:53,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:53,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:53,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:53,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:53,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:53,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:03:53,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:53,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:53,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:53,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:53,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:53,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:53,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:53,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:53,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:53,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:53,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:53,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:03:53,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:53,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:53,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:53,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:53,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:53,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:53,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:54,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:54,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:54,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:54,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 14:03:54,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:54,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:54,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:54,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:54,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:54,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:54,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:54,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:54,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:54,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:54,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:54,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:03:54,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:54,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:54,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:54,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:54,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:54,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:03:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:54,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:54,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:54,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:03:54,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:54,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:03:54,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:54,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:54,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:54,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:54,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:54,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:03:54,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:54,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:54,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:54,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:54,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:54,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:03:54,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:54,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:54,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:54,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:54,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:54,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:03:54,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:54,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:54,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:54,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:03:54,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:54,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:03:54,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:54,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:54,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:54,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:54,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:54,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:03:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:54,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:54,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:54,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:03:54,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:54,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:03:54,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:54,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:54,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:54,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:54,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:54,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:03:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:54,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:54,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:54,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:03:54,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:54,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 14:03:54,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:54,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:54,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:54,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:54,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:54,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:03:54,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:54,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:54,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:54,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-12 14:03:54,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:54,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:03:54,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:54,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:54,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:54,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:54,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:54,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-12 14:03:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:54,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:54,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:54,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-12 14:03:54,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:54,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 14:03:54,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:54,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:54,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:54,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 14:03:54,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:55,459 INFO L134 CoverageAnalysis]: Checked inductivity of 6957 backedges. 93 proven. 12 refuted. 0 times theorem prover too weak. 6852 trivial. 0 not checked. [2020-10-12 14:03:55,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1748688296] [2020-10-12 14:03:55,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:55,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:03:55,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214708893] [2020-10-12 14:03:55,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:03:55,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:55,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:03:55,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:03:55,462 INFO L87 Difference]: Start difference. First operand 6459 states and 6983 transitions. Second operand 5 states. [2020-10-12 14:03:56,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:56,704 INFO L93 Difference]: Finished difference Result 13822 states and 14997 transitions. [2020-10-12 14:03:56,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:03:56,705 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1516 [2020-10-12 14:03:56,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:56,717 INFO L225 Difference]: With dead ends: 13822 [2020-10-12 14:03:56,718 INFO L226 Difference]: Without dead ends: 7553 [2020-10-12 14:03:56,726 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:03:56,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7553 states. [2020-10-12 14:03:56,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7553 to 7005. [2020-10-12 14:03:56,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7005 states. [2020-10-12 14:03:56,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7005 states to 7005 states and 7580 transitions. [2020-10-12 14:03:56,826 INFO L78 Accepts]: Start accepts. Automaton has 7005 states and 7580 transitions. Word has length 1516 [2020-10-12 14:03:56,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:56,828 INFO L479 AbstractCegarLoop]: Abstraction has 7005 states and 7580 transitions. [2020-10-12 14:03:56,828 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:03:56,828 INFO L276 IsEmpty]: Start isEmpty. Operand 7005 states and 7580 transitions. [2020-10-12 14:03:56,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1612 [2020-10-12 14:03:56,854 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:56,855 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 14:03:56,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-12 14:03:56,855 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:56,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:56,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1805209358, now seen corresponding path program 1 times [2020-10-12 14:03:56,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:56,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276138451] [2020-10-12 14:03:56,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:57,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:57,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:57,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:00,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:01,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:02,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1645 [2020-10-12 14:04:02,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:04:02,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5070 [2020-10-12 14:04:02,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:02,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:02,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1544 [2020-10-12 14:04:02,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-12 14:04:02,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:02,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:04:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:02,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:02,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:04:02,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:02,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:04:02,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:02,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:02,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:02,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:02,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:02,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:04:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:02,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:02,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:04:02,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:02,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:04:02,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:02,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:02,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:02,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:02,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:02,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:04:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:02,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:02,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:04:02,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:02,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:04:02,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:02,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:02,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:02,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:02,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:02,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:04:02,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:02,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:02,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:04:02,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:02,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:04:02,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:02,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:02,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:02,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:02,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:02,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:04:02,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:02,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:02,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:04:02,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:02,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:04:02,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:02,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:02,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:02,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:02,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:02,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:04:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:02,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:02,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:04:02,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:02,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:04:02,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:02,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:02,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:02,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:02,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:02,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:04:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:02,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:02,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:04:02,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:02,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:04:02,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:02,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:02,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:02,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:02,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:02,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:04:02,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:02,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:02,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:04:02,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:02,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 14:04:02,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:02,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:02,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:02,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:02,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:02,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:04:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:02,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:02,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:04:02,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:02,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:04:02,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:02,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:02,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:02,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:02,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:02,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:04:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:02,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:02,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:04:02,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:02,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 14:04:02,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:02,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:02,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:02,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:02,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:02,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:04:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:02,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:02,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:04:02,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:02,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 14:04:02,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:02,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:02,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:02,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:02,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:02,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:04:02,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:02,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:02,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 14:04:02,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:02,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:04:02,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:02,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:02,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:02,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:02,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:03,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1408 [2020-10-12 14:04:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:03,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:03,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:03,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:04:03,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:03,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-12 14:04:03,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:03,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:04:03,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:03,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-12 14:04:03,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:03,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1520 [2020-10-12 14:04:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:03,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:03,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:03,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:04:03,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:03,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 14:04:03,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:03,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:03,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:04:03,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 14:04:03,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:04,150 INFO L134 CoverageAnalysis]: Checked inductivity of 8061 backedges. 1114 proven. 2 refuted. 0 times theorem prover too weak. 6945 trivial. 0 not checked. [2020-10-12 14:04:04,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [276138451] [2020-10-12 14:04:04,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:04:04,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:04:04,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183701169] [2020-10-12 14:04:04,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:04:04,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:04:04,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:04:04,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:04:04,153 INFO L87 Difference]: Start difference. First operand 7005 states and 7580 transitions. Second operand 7 states.