/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 09:23:50,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 09:23:50,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 09:23:50,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 09:23:50,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 09:23:50,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 09:23:50,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 09:23:50,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 09:23:50,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 09:23:50,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 09:23:50,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 09:23:50,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 09:23:50,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 09:23:50,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 09:23:50,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 09:23:50,512 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 09:23:50,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 09:23:50,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 09:23:50,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 09:23:50,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 09:23:50,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 09:23:50,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 09:23:50,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 09:23:50,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 09:23:50,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 09:23:50,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 09:23:50,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 09:23:50,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 09:23:50,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 09:23:50,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 09:23:50,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 09:23:50,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 09:23:50,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 09:23:50,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 09:23:50,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 09:23:50,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 09:23:50,531 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 09:23:50,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 09:23:50,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 09:23:50,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 09:23:50,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 09:23:50,534 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 09:23:50,555 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 09:23:50,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 09:23:50,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 09:23:50,557 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 09:23:50,557 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 09:23:50,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 09:23:50,558 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 09:23:50,558 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 09:23:50,558 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 09:23:50,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 09:23:50,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 09:23:50,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 09:23:50,559 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 09:23:50,559 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 09:23:50,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 09:23:50,559 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 09:23:50,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 09:23:50,560 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 09:23:50,560 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 09:23:50,560 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 09:23:50,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 09:23:50,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 09:23:50,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 09:23:50,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 09:23:50,561 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 09:23:50,561 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 09:23:50,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 09:23:50,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 09:23:50,562 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 09:23:50,562 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 09:23:50,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 09:23:50,886 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 09:23:50,893 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 09:23:50,895 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 09:23:50,896 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 09:23:50,897 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label51.c [2020-10-13 09:23:50,953 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a022d0a07/acff85a901d04494b2d39575cffd3454/FLAGc9fdaab94 [2020-10-13 09:23:51,592 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 09:23:51,593 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label51.c [2020-10-13 09:23:51,627 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a022d0a07/acff85a901d04494b2d39575cffd3454/FLAGc9fdaab94 [2020-10-13 09:23:51,922 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a022d0a07/acff85a901d04494b2d39575cffd3454 [2020-10-13 09:23:51,931 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 09:23:51,933 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 09:23:51,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 09:23:51,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 09:23:51,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 09:23:51,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:23:51" (1/1) ... [2020-10-13 09:23:51,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f0c700e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:23:51, skipping insertion in model container [2020-10-13 09:23:51,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:23:51" (1/1) ... [2020-10-13 09:23:51,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 09:23:52,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 09:23:52,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 09:23:52,767 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 09:23:52,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 09:23:53,011 INFO L208 MainTranslator]: Completed translation [2020-10-13 09:23:53,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:23:53 WrapperNode [2020-10-13 09:23:53,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 09:23:53,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 09:23:53,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 09:23:53,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 09:23:53,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:23:53" (1/1) ... [2020-10-13 09:23:53,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:23:53" (1/1) ... [2020-10-13 09:23:53,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:23:53" (1/1) ... [2020-10-13 09:23:53,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:23:53" (1/1) ... [2020-10-13 09:23:53,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:23:53" (1/1) ... [2020-10-13 09:23:53,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:23:53" (1/1) ... [2020-10-13 09:23:53,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:23:53" (1/1) ... [2020-10-13 09:23:53,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 09:23:53,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 09:23:53,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 09:23:53,207 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 09:23:53,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:23:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 09:23:53,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 09:23:53,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 09:23:53,273 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 09:23:53,273 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-13 09:23:53,273 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 09:23:53,274 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 09:23:53,275 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-13 09:23:53,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 09:23:53,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 09:23:53,276 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 09:23:53,276 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 09:23:53,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 09:23:53,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 09:23:55,454 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 09:23:55,455 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 09:23:55,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:23:55 BoogieIcfgContainer [2020-10-13 09:23:55,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 09:23:55,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 09:23:55,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 09:23:55,468 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 09:23:55,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:23:51" (1/3) ... [2020-10-13 09:23:55,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@628b42f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:23:55, skipping insertion in model container [2020-10-13 09:23:55,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:23:53" (2/3) ... [2020-10-13 09:23:55,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@628b42f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:23:55, skipping insertion in model container [2020-10-13 09:23:55,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:23:55" (3/3) ... [2020-10-13 09:23:55,472 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label51.c [2020-10-13 09:23:55,485 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 09:23:55,494 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 09:23:55,512 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 09:23:55,539 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 09:23:55,539 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 09:23:55,540 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 09:23:55,540 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 09:23:55,540 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 09:23:55,540 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 09:23:55,540 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 09:23:55,540 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 09:23:55,567 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-13 09:23:55,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-13 09:23:55,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:23:55,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:23:55,575 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:23:55,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:23:55,581 INFO L82 PathProgramCache]: Analyzing trace with hash 848957365, now seen corresponding path program 1 times [2020-10-13 09:23:55,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:23:55,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490476738] [2020-10-13 09:23:55,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:23:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:55,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:56,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:56,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 09:23:56,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:56,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-10-13 09:23:56,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:56,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 09:23:56,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 09:23:56,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 09:23:56,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 09:23:56,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:23:56,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:23:56,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:23:56,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:23:56,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:23:56,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:23:56,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 09:23:56,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:23:56,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:23:56,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:23:56,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 09:23:56,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:23:56,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 09:23:56,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [490476738] [2020-10-13 09:23:56,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 09:23:56,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 09:23:56,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059947553] [2020-10-13 09:23:56,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 09:23:56,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:23:56,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 09:23:56,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 09:23:56,180 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-13 09:23:59,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:23:59,830 INFO L93 Difference]: Finished difference Result 1169 states and 2164 transitions. [2020-10-13 09:23:59,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 09:23:59,832 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-13 09:23:59,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:23:59,862 INFO L225 Difference]: With dead ends: 1169 [2020-10-13 09:23:59,862 INFO L226 Difference]: Without dead ends: 696 [2020-10-13 09:23:59,872 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 [2020-10-13 09:23:59,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-13 09:23:59,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 692. [2020-10-13 09:23:59,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-10-13 09:23:59,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1014 transitions. [2020-10-13 09:23:59,966 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1014 transitions. Word has length 20 [2020-10-13 09:23:59,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:23:59,966 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 1014 transitions. [2020-10-13 09:23:59,966 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 09:23:59,967 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1014 transitions. [2020-10-13 09:23:59,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-13 09:23:59,970 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:23:59,971 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:23:59,971 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 09:23:59,971 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:23:59,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:23:59,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1953526824, now seen corresponding path program 1 times [2020-10-13 09:23:59,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:23:59,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1878348114] [2020-10-13 09:23:59,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:24:00,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:00,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:00,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:01,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:01,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-13 09:24:01,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 09:24:01,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1042 [2020-10-13 09:24:01,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:01,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:24:01,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 09:24:01,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 09:24:01,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 09:24:01,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:24:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:01,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:01,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:01,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:24:01,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:01,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 09:24:01,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:01,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:01,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:01,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:01,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 09:24:01,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:24:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:01,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:01,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:01,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 09:24:01,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:01,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-13 09:24:01,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:01,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:24:01,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:01,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 09:24:01,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:01,277 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 09:24:01,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1878348114] [2020-10-13 09:24:01,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:24:01,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 09:24:01,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034858619] [2020-10-13 09:24:01,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 09:24:01,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:24:01,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 09:24:01,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 09:24:01,281 INFO L87 Difference]: Start difference. First operand 692 states and 1014 transitions. Second operand 5 states. [2020-10-13 09:24:07,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:24:07,158 INFO L93 Difference]: Finished difference Result 2063 states and 3056 transitions. [2020-10-13 09:24:07,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 09:24:07,160 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 96 [2020-10-13 09:24:07,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:24:07,170 INFO L225 Difference]: With dead ends: 2063 [2020-10-13 09:24:07,170 INFO L226 Difference]: Without dead ends: 1377 [2020-10-13 09:24:07,174 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 [2020-10-13 09:24:07,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2020-10-13 09:24:07,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1373. [2020-10-13 09:24:07,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1373 states. [2020-10-13 09:24:07,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 1805 transitions. [2020-10-13 09:24:07,227 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 1805 transitions. Word has length 96 [2020-10-13 09:24:07,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:24:07,228 INFO L479 AbstractCegarLoop]: Abstraction has 1373 states and 1805 transitions. [2020-10-13 09:24:07,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 09:24:07,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 1805 transitions. [2020-10-13 09:24:07,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-13 09:24:07,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:24:07,235 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:24:07,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 09:24:07,236 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:24:07,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:24:07,236 INFO L82 PathProgramCache]: Analyzing trace with hash 2034977208, now seen corresponding path program 1 times [2020-10-13 09:24:07,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:24:07,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1037535089] [2020-10-13 09:24:07,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:24:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:07,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:07,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:07,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:08,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:08,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:09,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:10,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:10,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-13 09:24:10,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 09:24:10,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3392 [2020-10-13 09:24:10,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:10,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:24:10,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-10-13 09:24:10,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 09:24:10,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 09:24:10,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:24:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:10,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:10,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:10,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:24:10,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:10,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 09:24:10,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:10,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:10,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:10,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:10,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 09:24:10,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:24:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:10,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:10,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:10,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-13 09:24:10,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:10,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 09:24:10,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:10,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:10,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:10,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:10,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:10,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-13 09:24:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:10,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:10,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:10,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 09:24:10,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:10,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 09:24:10,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:10,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:24:10,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:10,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 09:24:10,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 09:24:11,020 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-13 09:24:11,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1037535089] [2020-10-13 09:24:11,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:24:11,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 09:24:11,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337020650] [2020-10-13 09:24:11,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 09:24:11,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:24:11,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 09:24:11,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 09:24:11,026 INFO L87 Difference]: Start difference. First operand 1373 states and 1805 transitions. Second operand 5 states. [2020-10-13 09:24:15,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:24:15,438 INFO L93 Difference]: Finished difference Result 3425 states and 4643 transitions. [2020-10-13 09:24:15,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 09:24:15,442 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 183 [2020-10-13 09:24:15,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:24:15,458 INFO L225 Difference]: With dead ends: 3425 [2020-10-13 09:24:15,458 INFO L226 Difference]: Without dead ends: 2058 [2020-10-13 09:24:15,462 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 09:24:15,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2058 states. [2020-10-13 09:24:15,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2058 to 2054. [2020-10-13 09:24:15,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2054 states. [2020-10-13 09:24:15,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2054 states to 2054 states and 2580 transitions. [2020-10-13 09:24:15,534 INFO L78 Accepts]: Start accepts. Automaton has 2054 states and 2580 transitions. Word has length 183 [2020-10-13 09:24:15,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:24:15,540 INFO L479 AbstractCegarLoop]: Abstraction has 2054 states and 2580 transitions. [2020-10-13 09:24:15,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 09:24:15,541 INFO L276 IsEmpty]: Start isEmpty. Operand 2054 states and 2580 transitions. [2020-10-13 09:24:15,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-13 09:24:15,550 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:24:15,551 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:24:15,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 09:24:15,551 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:24:15,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:24:15,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1954737339, now seen corresponding path program 1 times [2020-10-13 09:24:15,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:24:15,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [731204576] [2020-10-13 09:24:15,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:24:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:15,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:15,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:15,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:16,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:16,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:17,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:18,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:18,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-13 09:24:18,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 09:24:18,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2845 [2020-10-13 09:24:18,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:18,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:24:18,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-13 09:24:18,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 09:24:18,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 09:24:18,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:24:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:18,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:18,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:18,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:24:18,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:18,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 09:24:18,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:18,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:18,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:18,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:18,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:18,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:24:18,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:18,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:18,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:18,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-13 09:24:18,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:18,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 09:24:18,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:18,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:18,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:18,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:18,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:18,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-13 09:24:18,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:18,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:18,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:18,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 09:24:18,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:18,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 09:24:18,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:18,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:24:18,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:18,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 09:24:18,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:18,781 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-13 09:24:18,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [731204576] [2020-10-13 09:24:18,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:24:18,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 09:24:18,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974163773] [2020-10-13 09:24:18,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 09:24:18,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:24:18,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 09:24:18,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 09:24:18,787 INFO L87 Difference]: Start difference. First operand 2054 states and 2580 transitions. Second operand 5 states. [2020-10-13 09:24:22,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:24:22,598 INFO L93 Difference]: Finished difference Result 5132 states and 6663 transitions. [2020-10-13 09:24:22,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 09:24:22,606 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 194 [2020-10-13 09:24:22,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:24:22,623 INFO L225 Difference]: With dead ends: 5132 [2020-10-13 09:24:22,623 INFO L226 Difference]: Without dead ends: 3084 [2020-10-13 09:24:22,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 09:24:22,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3084 states. [2020-10-13 09:24:22,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3084 to 3080. [2020-10-13 09:24:22,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3080 states. [2020-10-13 09:24:22,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3080 states to 3080 states and 3740 transitions. [2020-10-13 09:24:22,710 INFO L78 Accepts]: Start accepts. Automaton has 3080 states and 3740 transitions. Word has length 194 [2020-10-13 09:24:22,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:24:22,712 INFO L479 AbstractCegarLoop]: Abstraction has 3080 states and 3740 transitions. [2020-10-13 09:24:22,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 09:24:22,712 INFO L276 IsEmpty]: Start isEmpty. Operand 3080 states and 3740 transitions. [2020-10-13 09:24:22,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-13 09:24:22,717 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:24:22,717 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:24:22,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 09:24:22,718 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:24:22,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:24:22,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1169038738, now seen corresponding path program 1 times [2020-10-13 09:24:22,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:24:22,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1735865643] [2020-10-13 09:24:22,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:24:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:22,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:22,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:23,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:26,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:26,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-10-13 09:24:26,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 09:24:26,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3691 [2020-10-13 09:24:26,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:26,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:24:26,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 241 [2020-10-13 09:24:26,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 09:24:26,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:26,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:24:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:26,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:26,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:26,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:24:26,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:26,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 09:24:26,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:26,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:26,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:26,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:26,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:26,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:24:26,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:26,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:26,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:26,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-13 09:24:26,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:26,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 09:24:26,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:26,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:26,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:26,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:26,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 09:24:26,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 09:24:26,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:26,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:26,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:26,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 09:24:26,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:26,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-13 09:24:26,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:26,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:24:26,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:26,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-13 09:24:26,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:26,832 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-10-13 09:24:26,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1735865643] [2020-10-13 09:24:26,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:24:26,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 09:24:26,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004141942] [2020-10-13 09:24:26,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 09:24:26,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:24:26,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 09:24:26,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 09:24:26,835 INFO L87 Difference]: Start difference. First operand 3080 states and 3740 transitions. Second operand 5 states. [2020-10-13 09:24:31,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:24:31,110 INFO L93 Difference]: Finished difference Result 7178 states and 8976 transitions. [2020-10-13 09:24:31,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 09:24:31,116 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 249 [2020-10-13 09:24:31,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:24:31,135 INFO L225 Difference]: With dead ends: 7178 [2020-10-13 09:24:31,136 INFO L226 Difference]: Without dead ends: 4104 [2020-10-13 09:24:31,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 09:24:31,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4104 states. [2020-10-13 09:24:31,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4104 to 4100. [2020-10-13 09:24:31,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4100 states. [2020-10-13 09:24:31,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4100 states to 4100 states and 4883 transitions. [2020-10-13 09:24:31,228 INFO L78 Accepts]: Start accepts. Automaton has 4100 states and 4883 transitions. Word has length 249 [2020-10-13 09:24:31,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:24:31,229 INFO L479 AbstractCegarLoop]: Abstraction has 4100 states and 4883 transitions. [2020-10-13 09:24:31,229 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 09:24:31,229 INFO L276 IsEmpty]: Start isEmpty. Operand 4100 states and 4883 transitions. [2020-10-13 09:24:31,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2020-10-13 09:24:31,239 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:24:31,240 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:24:31,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 09:24:31,240 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:24:31,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:24:31,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1549937762, now seen corresponding path program 1 times [2020-10-13 09:24:31,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:24:31,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993620050] [2020-10-13 09:24:31,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:24:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:31,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:31,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:31,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:31,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:32,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:34,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:35,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:35,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:36,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:36,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 427 [2020-10-13 09:24:36,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 09:24:36,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-13 09:24:36,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:36,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:24:36,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 407 [2020-10-13 09:24:36,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 09:24:36,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:36,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:24:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:36,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:36,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:36,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:24:36,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:36,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 09:24:36,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:36,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:36,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:36,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:36,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:36,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:24:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:36,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:36,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:36,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-13 09:24:36,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:36,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 09:24:36,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:36,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:36,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:36,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:36,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:36,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-13 09:24:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:36,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:36,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:36,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 09:24:36,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:36,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 09:24:36,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:36,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:36,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:36,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:36,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:36,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-13 09:24:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:36,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:36,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:36,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 09:24:36,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:36,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 09:24:36,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:36,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:36,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:36,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:36,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:36,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2020-10-13 09:24:36,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:36,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:36,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:36,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-13 09:24:36,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:36,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-13 09:24:36,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:36,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:24:36,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:36,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-13 09:24:36,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 09:24:36,922 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 57 proven. 4 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2020-10-13 09:24:36,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1993620050] [2020-10-13 09:24:36,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:24:36,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 09:24:36,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767791453] [2020-10-13 09:24:36,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 09:24:36,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:24:36,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 09:24:36,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 09:24:36,928 INFO L87 Difference]: Start difference. First operand 4100 states and 4883 transitions. Second operand 5 states. [2020-10-13 09:24:41,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:24:41,166 INFO L93 Difference]: Finished difference Result 9224 states and 11293 transitions. [2020-10-13 09:24:41,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 09:24:41,171 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 411 [2020-10-13 09:24:41,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:24:41,191 INFO L225 Difference]: With dead ends: 9224 [2020-10-13 09:24:41,191 INFO L226 Difference]: Without dead ends: 5130 [2020-10-13 09:24:41,202 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 09:24:41,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5130 states. [2020-10-13 09:24:41,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5130 to 5126. [2020-10-13 09:24:41,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5126 states. [2020-10-13 09:24:41,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5126 states to 5126 states and 6049 transitions. [2020-10-13 09:24:41,314 INFO L78 Accepts]: Start accepts. Automaton has 5126 states and 6049 transitions. Word has length 411 [2020-10-13 09:24:41,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:24:41,315 INFO L479 AbstractCegarLoop]: Abstraction has 5126 states and 6049 transitions. [2020-10-13 09:24:41,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 09:24:41,315 INFO L276 IsEmpty]: Start isEmpty. Operand 5126 states and 6049 transitions. [2020-10-13 09:24:41,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2020-10-13 09:24:41,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:24:41,334 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:24:41,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 09:24:41,335 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:24:41,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:24:41,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1945920044, now seen corresponding path program 1 times [2020-10-13 09:24:41,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:24:41,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [558595391] [2020-10-13 09:24:41,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:24:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:41,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:41,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:41,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:42,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:43,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:45,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:46,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:46,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:46,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 587 [2020-10-13 09:24:46,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 09:24:46,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-13 09:24:46,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:46,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:24:46,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-13 09:24:46,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 09:24:46,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:46,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:24:46,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:46,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:46,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:46,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:24:46,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:46,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 09:24:46,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:46,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:46,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:46,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:46,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:46,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:24:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:46,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:46,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:46,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-13 09:24:46,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:46,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 09:24:46,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:46,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:24:46,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:46,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 09:24:46,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:46,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-13 09:24:46,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:46,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:46,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:47,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:47,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-13 09:24:47,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 09:24:47,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 862 [2020-10-13 09:24:47,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:47,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:24:47,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:24:47,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-13 09:24:47,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 09:24:48,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2020-10-13 09:24:48,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:48,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:48,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:48,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-13 09:24:48,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:48,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 09:24:48,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:48,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:48,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-13 09:24:48,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:48,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:48,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2020-10-13 09:24:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:48,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:48,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:48,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-13 09:24:48,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:48,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 09:24:48,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:48,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:48,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 114 [2020-10-13 09:24:48,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:48,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:48,757 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 148 proven. 183 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2020-10-13 09:24:48,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [558595391] [2020-10-13 09:24:48,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:24:48,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 09:24:48,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343192977] [2020-10-13 09:24:48,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 09:24:48,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:24:48,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 09:24:48,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 09:24:48,760 INFO L87 Difference]: Start difference. First operand 5126 states and 6049 transitions. Second operand 6 states. [2020-10-13 09:24:52,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:24:52,649 INFO L93 Difference]: Finished difference Result 10433 states and 12330 transitions. [2020-10-13 09:24:52,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 09:24:52,650 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 571 [2020-10-13 09:24:52,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:24:52,670 INFO L225 Difference]: With dead ends: 10433 [2020-10-13 09:24:52,670 INFO L226 Difference]: Without dead ends: 5188 [2020-10-13 09:24:52,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-13 09:24:52,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5188 states. [2020-10-13 09:24:52,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5188 to 5126. [2020-10-13 09:24:52,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5126 states. [2020-10-13 09:24:52,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5126 states to 5126 states and 5847 transitions. [2020-10-13 09:24:52,782 INFO L78 Accepts]: Start accepts. Automaton has 5126 states and 5847 transitions. Word has length 571 [2020-10-13 09:24:52,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:24:52,782 INFO L479 AbstractCegarLoop]: Abstraction has 5126 states and 5847 transitions. [2020-10-13 09:24:52,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 09:24:52,782 INFO L276 IsEmpty]: Start isEmpty. Operand 5126 states and 5847 transitions. [2020-10-13 09:24:52,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 647 [2020-10-13 09:24:52,806 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:24:52,807 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:24:52,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 09:24:52,808 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:24:52,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:24:52,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1574902379, now seen corresponding path program 1 times [2020-10-13 09:24:52,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:24:52,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208040006] [2020-10-13 09:24:52,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:24:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:52,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:53,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:53,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:53,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:53,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:56,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:57,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:57,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:57,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 662 [2020-10-13 09:24:57,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 09:24:57,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-13 09:24:57,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:57,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:24:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 176 [2020-10-13 09:24:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 09:24:57,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:58,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:24:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:58,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:58,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:58,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:24:58,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:58,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 09:24:58,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:58,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:58,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:58,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:58,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:58,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:24:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:58,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:58,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:58,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-13 09:24:58,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:58,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-13 09:24:58,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:58,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:24:58,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:24:58,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-10-13 09:24:58,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:58,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-13 09:24:58,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:58,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:58,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:58,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:58,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-13 09:24:58,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 09:24:58,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 321 [2020-10-13 09:24:58,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:58,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:24:58,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:24:58,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-13 09:24:58,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:58,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2020-10-13 09:24:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:58,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:58,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:58,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-13 09:24:58,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:58,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 09:24:58,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:58,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:58,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-13 09:24:58,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:58,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:58,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2020-10-13 09:24:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:24:58,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:24:58,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:24:58,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-13 09:24:58,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:24:58,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 09:24:58,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:24:58,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:24:58,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 114 [2020-10-13 09:24:58,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:24:58,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:24:59,001 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 223 proven. 183 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2020-10-13 09:24:59,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208040006] [2020-10-13 09:24:59,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:24:59,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 09:24:59,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202591954] [2020-10-13 09:24:59,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 09:24:59,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:24:59,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 09:24:59,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 09:24:59,003 INFO L87 Difference]: Start difference. First operand 5126 states and 5847 transitions. Second operand 7 states. [2020-10-13 09:25:04,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:25:04,247 INFO L93 Difference]: Finished difference Result 13142 states and 15289 transitions. [2020-10-13 09:25:04,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 09:25:04,248 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 646 [2020-10-13 09:25:04,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:25:04,279 INFO L225 Difference]: With dead ends: 13142 [2020-10-13 09:25:04,279 INFO L226 Difference]: Without dead ends: 7945 [2020-10-13 09:25:04,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 09:25:04,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7945 states. [2020-10-13 09:25:04,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7945 to 7937. [2020-10-13 09:25:04,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7937 states. [2020-10-13 09:25:04,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7937 states to 7937 states and 8881 transitions. [2020-10-13 09:25:04,515 INFO L78 Accepts]: Start accepts. Automaton has 7937 states and 8881 transitions. Word has length 646 [2020-10-13 09:25:04,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:25:04,516 INFO L479 AbstractCegarLoop]: Abstraction has 7937 states and 8881 transitions. [2020-10-13 09:25:04,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 09:25:04,516 INFO L276 IsEmpty]: Start isEmpty. Operand 7937 states and 8881 transitions. [2020-10-13 09:25:04,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 745 [2020-10-13 09:25:04,538 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:25:04,539 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 09:25:04,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 09:25:04,539 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:25:04,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:25:04,540 INFO L82 PathProgramCache]: Analyzing trace with hash 605964359, now seen corresponding path program 1 times [2020-10-13 09:25:04,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:25:04,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1035298996] [2020-10-13 09:25:04,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:25:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:04,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:04,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:05,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:05,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:06,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:07,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:09,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:09,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 760 [2020-10-13 09:25:09,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 09:25:09,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-13 09:25:09,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:09,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 09:25:09,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 274 [2020-10-13 09:25:09,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-13 09:25:09,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:09,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:25:09,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:09,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:09,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:09,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:25:09,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:09,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 09:25:09,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:09,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:09,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:09,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:09,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:09,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:25:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:09,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:09,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:09,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-10-13 09:25:09,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:09,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-13 09:25:09,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:09,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:25:09,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:09,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 259 [2020-10-13 09:25:09,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:10,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2020-10-13 09:25:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:10,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:10,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:10,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:10,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-13 09:25:10,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 09:25:10,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 666 [2020-10-13 09:25:10,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:10,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:25:10,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:25:10,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-13 09:25:10,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:10,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 545 [2020-10-13 09:25:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:10,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:10,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:10,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-13 09:25:10,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:10,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 09:25:10,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:10,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:10,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-13 09:25:10,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:10,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:10,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-13 09:25:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:10,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:10,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:10,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-13 09:25:10,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:10,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 09:25:10,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:10,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:10,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 114 [2020-10-13 09:25:10,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:10,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:11,219 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 321 proven. 183 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2020-10-13 09:25:11,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1035298996] [2020-10-13 09:25:11,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:25:11,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 09:25:11,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561795780] [2020-10-13 09:25:11,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 09:25:11,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:25:11,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 09:25:11,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 09:25:11,222 INFO L87 Difference]: Start difference. First operand 7937 states and 8881 transitions. Second operand 7 states. [2020-10-13 09:25:14,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:25:14,668 INFO L93 Difference]: Finished difference Result 13439 states and 14920 transitions. [2020-10-13 09:25:14,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 09:25:14,669 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 744 [2020-10-13 09:25:14,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:25:14,684 INFO L225 Difference]: With dead ends: 13439 [2020-10-13 09:25:14,685 INFO L226 Difference]: Without dead ends: 5184 [2020-10-13 09:25:14,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 09:25:14,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5184 states. [2020-10-13 09:25:14,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5184 to 5156. [2020-10-13 09:25:14,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5156 states. [2020-10-13 09:25:14,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5156 states to 5156 states and 5578 transitions. [2020-10-13 09:25:14,788 INFO L78 Accepts]: Start accepts. Automaton has 5156 states and 5578 transitions. Word has length 744 [2020-10-13 09:25:14,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:25:14,789 INFO L479 AbstractCegarLoop]: Abstraction has 5156 states and 5578 transitions. [2020-10-13 09:25:14,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 09:25:14,789 INFO L276 IsEmpty]: Start isEmpty. Operand 5156 states and 5578 transitions. [2020-10-13 09:25:14,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 770 [2020-10-13 09:25:14,804 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:25:14,804 INFO L422 BasicCegarLoop]: trace histogram [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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:25:14,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 09:25:14,805 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:25:14,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:25:14,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1423347351, now seen corresponding path program 1 times [2020-10-13 09:25:14,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:25:14,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [754009781] [2020-10-13 09:25:14,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:25:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:14,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:15,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:15,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:15,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:19,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:19,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 789 [2020-10-13 09:25:19,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 09:25:19,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 09:25:19,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:19,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 09:25:19,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 09:25:19,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-13 09:25:19,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:19,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:25:19,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:19,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:19,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:19,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:25:19,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:19,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 09:25:19,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:19,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:25:19,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:19,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 09:25:19,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:19,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:25:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:19,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:20,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:20,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-13 09:25:20,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:20,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-13 09:25:20,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:20,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:25:20,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:25:20,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-13 09:25:20,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:20,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 09:25:20,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:20,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:20,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:20,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 09:25:20,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:20,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 09:25:20,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:20,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:20,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-13 09:25:20,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:20,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:20,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-13 09:25:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:20,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:20,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:20,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-13 09:25:20,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:20,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 09:25:20,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:20,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:20,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-13 09:25:20,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:20,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:20,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-13 09:25:20,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:20,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:20,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:20,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 09:25:20,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:20,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 09:25:20,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:20,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:20,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-13 09:25:20,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:20,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:20,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-13 09:25:20,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:20,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:20,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:20,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-13 09:25:20,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:20,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-13 09:25:20,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:20,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:20,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-13 09:25:20,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:20,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:20,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-13 09:25:20,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:20,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:20,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:20,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 09:25:20,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:20,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 09:25:20,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:20,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:20,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:20,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:20,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:20,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 65 proven. 380 refuted. 0 times theorem prover too weak. 709 trivial. 0 not checked. [2020-10-13 09:25:20,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [754009781] [2020-10-13 09:25:20,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:25:20,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 09:25:20,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947456039] [2020-10-13 09:25:20,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 09:25:20,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:25:20,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 09:25:20,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 09:25:20,789 INFO L87 Difference]: Start difference. First operand 5156 states and 5578 transitions. Second operand 7 states. [2020-10-13 09:25:24,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:25:24,262 INFO L93 Difference]: Finished difference Result 15113 states and 16522 transitions. [2020-10-13 09:25:24,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 09:25:24,270 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 769 [2020-10-13 09:25:24,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:25:24,293 INFO L225 Difference]: With dead ends: 15113 [2020-10-13 09:25:24,294 INFO L226 Difference]: Without dead ends: 9963 [2020-10-13 09:25:24,305 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 09:25:24,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9963 states. [2020-10-13 09:25:24,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9963 to 9283. [2020-10-13 09:25:24,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9283 states. [2020-10-13 09:25:24,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9283 states to 9283 states and 10147 transitions. [2020-10-13 09:25:24,470 INFO L78 Accepts]: Start accepts. Automaton has 9283 states and 10147 transitions. Word has length 769 [2020-10-13 09:25:24,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:25:24,470 INFO L479 AbstractCegarLoop]: Abstraction has 9283 states and 10147 transitions. [2020-10-13 09:25:24,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 09:25:24,471 INFO L276 IsEmpty]: Start isEmpty. Operand 9283 states and 10147 transitions. [2020-10-13 09:25:24,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 790 [2020-10-13 09:25:24,490 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:25:24,493 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:25:24,494 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 09:25:24,494 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:25:24,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:25:24,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1532889462, now seen corresponding path program 1 times [2020-10-13 09:25:24,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:25:24,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1930432363] [2020-10-13 09:25:24,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:25:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:24,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:24,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:25,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:28,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:29,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:29,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 807 [2020-10-13 09:25:29,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 09:25:29,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-13 09:25:29,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:29,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:25:29,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 376 [2020-10-13 09:25:29,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 09:25:29,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:29,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:25:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:29,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:29,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:29,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:25:29,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:29,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 09:25:29,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:29,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:29,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:29,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:29,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:29,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:25:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:29,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:29,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:29,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-13 09:25:29,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:29,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 09:25:29,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:29,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:29,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:29,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:29,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:29,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-13 09:25:29,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:29,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:29,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:29,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-13 09:25:29,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:29,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 09:25:29,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:29,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:25:29,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:29,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-13 09:25:29,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:29,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2020-10-13 09:25:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:29,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:29,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:29,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 09:25:29,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:29,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 09:25:29,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:29,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:25:29,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:25:29,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 09:25:29,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:30,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2020-10-13 09:25:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:30,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:30,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:30,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-13 09:25:30,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:30,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-13 09:25:30,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:30,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:30,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-13 09:25:30,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:30,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:30,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-13 09:25:30,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:30,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:30,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:30,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 09:25:30,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:30,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 09:25:30,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:30,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:30,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:30,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:30,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:30,545 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 279 proven. 109 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2020-10-13 09:25:30,546 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1930432363] [2020-10-13 09:25:30,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:25:30,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 09:25:30,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141800302] [2020-10-13 09:25:30,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 09:25:30,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:25:30,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 09:25:30,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 09:25:30,548 INFO L87 Difference]: Start difference. First operand 9283 states and 10147 transitions. Second operand 7 states. [2020-10-13 09:25:33,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:25:33,926 INFO L93 Difference]: Finished difference Result 20636 states and 22668 transitions. [2020-10-13 09:25:33,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 09:25:33,927 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 789 [2020-10-13 09:25:33,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:25:33,955 INFO L225 Difference]: With dead ends: 20636 [2020-10-13 09:25:33,955 INFO L226 Difference]: Without dead ends: 11696 [2020-10-13 09:25:33,972 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 09:25:33,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11696 states. [2020-10-13 09:25:34,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11696 to 11686. [2020-10-13 09:25:34,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11686 states. [2020-10-13 09:25:34,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11686 states to 11686 states and 12758 transitions. [2020-10-13 09:25:34,148 INFO L78 Accepts]: Start accepts. Automaton has 11686 states and 12758 transitions. Word has length 789 [2020-10-13 09:25:34,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:25:34,149 INFO L479 AbstractCegarLoop]: Abstraction has 11686 states and 12758 transitions. [2020-10-13 09:25:34,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 09:25:34,150 INFO L276 IsEmpty]: Start isEmpty. Operand 11686 states and 12758 transitions. [2020-10-13 09:25:34,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1001 [2020-10-13 09:25:34,177 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:25:34,179 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:25:34,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 09:25:34,180 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:25:34,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:25:34,180 INFO L82 PathProgramCache]: Analyzing trace with hash -411930153, now seen corresponding path program 1 times [2020-10-13 09:25:34,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:25:34,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [20997454] [2020-10-13 09:25:34,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:25:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:34,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:34,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:34,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:34,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:35,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:39,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:39,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1022 [2020-10-13 09:25:39,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 09:25:39,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-13 09:25:39,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:39,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:25:39,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 591 [2020-10-13 09:25:39,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 09:25:39,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:39,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:25:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:39,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:39,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:39,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:25:39,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:39,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 09:25:39,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:39,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:39,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:39,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:39,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:39,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:25:39,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:39,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:39,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:39,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-13 09:25:39,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:39,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 09:25:39,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:39,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:39,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:39,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:39,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:39,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-13 09:25:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:39,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:39,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:39,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 09:25:39,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:39,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 09:25:39,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:39,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:39,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:39,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:39,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:39,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-13 09:25:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:39,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:39,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:39,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-13 09:25:39,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:39,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 09:25:39,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:39,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:39,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:39,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:39,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:39,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2020-10-13 09:25:39,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:39,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:39,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:39,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 09:25:39,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:39,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 09:25:39,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:39,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:25:39,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:39,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-13 09:25:39,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:39,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2020-10-13 09:25:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:39,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:39,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:39,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 09:25:39,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:39,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-13 09:25:39,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:39,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:25:39,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:25:39,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 09:25:39,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:39,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 693 [2020-10-13 09:25:40,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:40,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:40,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:40,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-13 09:25:40,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:40,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-13 09:25:40,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:40,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:40,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-13 09:25:40,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:40,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:40,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-13 09:25:40,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:40,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:40,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:40,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 09:25:40,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:40,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 09:25:40,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:40,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:40,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:40,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:40,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:40,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1741 backedges. 496 proven. 109 refuted. 0 times theorem prover too weak. 1136 trivial. 0 not checked. [2020-10-13 09:25:40,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [20997454] [2020-10-13 09:25:40,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:25:40,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 09:25:40,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595765454] [2020-10-13 09:25:40,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 09:25:40,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:25:40,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 09:25:40,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 09:25:40,634 INFO L87 Difference]: Start difference. First operand 11686 states and 12758 transitions. Second operand 7 states. [2020-10-13 09:25:44,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:25:44,666 INFO L93 Difference]: Finished difference Result 24543 states and 27460 transitions. [2020-10-13 09:25:44,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 09:25:44,668 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1000 [2020-10-13 09:25:44,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:25:44,716 INFO L225 Difference]: With dead ends: 24543 [2020-10-13 09:25:44,717 INFO L226 Difference]: Without dead ends: 13200 [2020-10-13 09:25:44,739 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 09:25:44,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13200 states. [2020-10-13 09:25:44,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13200 to 13048. [2020-10-13 09:25:44,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13048 states. [2020-10-13 09:25:44,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13048 states to 13048 states and 14170 transitions. [2020-10-13 09:25:44,973 INFO L78 Accepts]: Start accepts. Automaton has 13048 states and 14170 transitions. Word has length 1000 [2020-10-13 09:25:44,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:25:44,974 INFO L479 AbstractCegarLoop]: Abstraction has 13048 states and 14170 transitions. [2020-10-13 09:25:44,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 09:25:44,974 INFO L276 IsEmpty]: Start isEmpty. Operand 13048 states and 14170 transitions. [2020-10-13 09:25:45,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1094 [2020-10-13 09:25:45,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:25:45,013 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:25:45,013 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 09:25:45,013 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:25:45,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:25:45,014 INFO L82 PathProgramCache]: Analyzing trace with hash 677682148, now seen corresponding path program 1 times [2020-10-13 09:25:45,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:25:45,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1627290699] [2020-10-13 09:25:45,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:25:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:45,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:45,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:45,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:46,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:46,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:50,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:50,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1115 [2020-10-13 09:25:50,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 09:25:50,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-13 09:25:50,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:50,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:25:50,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-13 09:25:50,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-13 09:25:50,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:50,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:25:50,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:50,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:50,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:50,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:25:50,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:50,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 09:25:50,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:50,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:50,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:50,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:50,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:50,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:25:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:50,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:50,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:50,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-13 09:25:50,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:50,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-13 09:25:50,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:50,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:25:50,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:50,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-13 09:25:50,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:50,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-13 09:25:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:50,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:50,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:50,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 09:25:50,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:50,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 09:25:50,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:50,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:25:50,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:25:50,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 09:25:50,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:50,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-13 09:25:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:50,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:50,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:50,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-13 09:25:50,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:50,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 09:25:50,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:50,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:50,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-13 09:25:50,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:50,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:50,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2020-10-13 09:25:50,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:50,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:50,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:50,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-13 09:25:50,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:50,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-13 09:25:50,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:50,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:50,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-13 09:25:50,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:50,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:50,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 715 [2020-10-13 09:25:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:50,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:50,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:50,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-13 09:25:50,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:50,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 09:25:50,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:50,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:50,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-13 09:25:50,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:50,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:50,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2020-10-13 09:25:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:50,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:51,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:51,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-13 09:25:51,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:51,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-13 09:25:51,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:51,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:51,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-13 09:25:51,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:51,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:51,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-13 09:25:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:51,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:51,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:25:51,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 09:25:51,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:25:51,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 09:25:51,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:25:51,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:25:51,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:25:51,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:25:51,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:25:51,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1828 backedges. 161 proven. 270 refuted. 0 times theorem prover too weak. 1397 trivial. 0 not checked. [2020-10-13 09:25:51,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1627290699] [2020-10-13 09:25:51,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:25:51,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 09:25:51,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463583792] [2020-10-13 09:25:51,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 09:25:51,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:25:51,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 09:25:51,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 09:25:51,638 INFO L87 Difference]: Start difference. First operand 13048 states and 14170 transitions. Second operand 7 states. [2020-10-13 09:25:56,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:25:56,842 INFO L93 Difference]: Finished difference Result 30019 states and 33383 transitions. [2020-10-13 09:25:56,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 09:25:56,843 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1093 [2020-10-13 09:25:56,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:25:56,890 INFO L225 Difference]: With dead ends: 30019 [2020-10-13 09:25:56,891 INFO L226 Difference]: Without dead ends: 17314 [2020-10-13 09:25:56,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 09:25:56,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17314 states. [2020-10-13 09:25:57,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17314 to 16111. [2020-10-13 09:25:57,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16111 states. [2020-10-13 09:25:57,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16111 states to 16111 states and 17470 transitions. [2020-10-13 09:25:57,172 INFO L78 Accepts]: Start accepts. Automaton has 16111 states and 17470 transitions. Word has length 1093 [2020-10-13 09:25:57,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:25:57,173 INFO L479 AbstractCegarLoop]: Abstraction has 16111 states and 17470 transitions. [2020-10-13 09:25:57,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 09:25:57,173 INFO L276 IsEmpty]: Start isEmpty. Operand 16111 states and 17470 transitions. [2020-10-13 09:25:57,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1119 [2020-10-13 09:25:57,205 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:25:57,205 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:25:57,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 09:25:57,206 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:25:57,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:25:57,206 INFO L82 PathProgramCache]: Analyzing trace with hash 110061997, now seen corresponding path program 1 times [2020-10-13 09:25:57,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:25:57,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1007538334] [2020-10-13 09:25:57,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:25:57,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:25:57,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:57,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:57,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:58,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:25:59,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:02,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:02,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1140 [2020-10-13 09:26:02,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 09:26:02,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-13 09:26:02,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:02,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:26:02,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 748 [2020-10-13 09:26:02,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 09:26:02,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:02,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:26:02,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:02,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:02,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:02,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:26:02,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:02,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 09:26:02,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:02,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:02,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:26:02,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:02,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:02,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:26:02,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:02,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:02,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:02,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-13 09:26:02,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:02,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 09:26:02,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:02,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:02,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:26:02,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:02,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:02,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-13 09:26:02,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:02,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:02,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:02,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-13 09:26:02,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:02,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 09:26:02,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:02,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:02,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:26:02,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:02,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:02,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-13 09:26:02,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:02,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:02,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:02,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-13 09:26:02,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:02,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 09:26:02,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:02,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:02,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:26:02,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:02,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:02,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2020-10-13 09:26:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:02,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:02,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:02,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-13 09:26:02,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:02,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-13 09:26:02,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:02,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:26:02,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:26:02,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-13 09:26:02,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:03,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 740 [2020-10-13 09:26:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:03,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:03,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:03,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-13 09:26:03,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:03,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-13 09:26:03,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:03,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:26:03,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:26:03,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 09:26:03,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:03,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 811 [2020-10-13 09:26:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:03,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:03,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:03,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-13 09:26:03,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:03,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-13 09:26:03,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:03,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:03,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-13 09:26:03,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:03,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:03,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-13 09:26:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:03,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:03,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:03,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 09:26:03,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:03,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 09:26:03,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:03,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:03,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:26:03,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:03,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:04,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1929 backedges. 381 proven. 70 refuted. 0 times theorem prover too weak. 1478 trivial. 0 not checked. [2020-10-13 09:26:04,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1007538334] [2020-10-13 09:26:04,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:26:04,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 09:26:04,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922144244] [2020-10-13 09:26:04,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 09:26:04,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:26:04,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 09:26:04,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 09:26:04,007 INFO L87 Difference]: Start difference. First operand 16111 states and 17470 transitions. Second operand 7 states. [2020-10-13 09:26:07,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:26:07,336 INFO L93 Difference]: Finished difference Result 33227 states and 36058 transitions. [2020-10-13 09:26:07,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 09:26:07,336 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1118 [2020-10-13 09:26:07,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:26:07,370 INFO L225 Difference]: With dead ends: 33227 [2020-10-13 09:26:07,371 INFO L226 Difference]: Without dead ends: 17798 [2020-10-13 09:26:07,393 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-13 09:26:07,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17798 states. [2020-10-13 09:26:07,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17798 to 16450. [2020-10-13 09:26:07,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16450 states. [2020-10-13 09:26:07,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16450 states to 16450 states and 17801 transitions. [2020-10-13 09:26:07,616 INFO L78 Accepts]: Start accepts. Automaton has 16450 states and 17801 transitions. Word has length 1118 [2020-10-13 09:26:07,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:26:07,617 INFO L479 AbstractCegarLoop]: Abstraction has 16450 states and 17801 transitions. [2020-10-13 09:26:07,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 09:26:07,617 INFO L276 IsEmpty]: Start isEmpty. Operand 16450 states and 17801 transitions. [2020-10-13 09:26:07,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1135 [2020-10-13 09:26:07,653 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:26:07,654 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:26:07,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 09:26:07,654 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:26:07,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:26:07,655 INFO L82 PathProgramCache]: Analyzing trace with hash 797458971, now seen corresponding path program 1 times [2020-10-13 09:26:07,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:26:07,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2050311868] [2020-10-13 09:26:07,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:26:07,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:07,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:07,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:08,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:08,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:08,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:12,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:12,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1156 [2020-10-13 09:26:12,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 09:26:12,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-13 09:26:12,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:12,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:26:12,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-13 09:26:12,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-13 09:26:12,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:12,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:26:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:12,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:12,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:12,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:26:12,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:12,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 09:26:12,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:12,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:12,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:26:12,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:12,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:12,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:26:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:13,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:13,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:13,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-13 09:26:13,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:13,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-10-13 09:26:13,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:13,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:26:13,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:26:13,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-13 09:26:13,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:13,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-13 09:26:13,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:13,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:13,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:13,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-13 09:26:13,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:13,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 09:26:13,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:13,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:26:13,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:26:13,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-13 09:26:13,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:13,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-13 09:26:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:13,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:13,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:13,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-13 09:26:13,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:13,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 09:26:13,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:13,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:13,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-13 09:26:13,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:13,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:13,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2020-10-13 09:26:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:13,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:13,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:13,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-13 09:26:13,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:13,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-13 09:26:13,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:13,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:13,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-13 09:26:13,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:13,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:13,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2020-10-13 09:26:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:13,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:13,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:13,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 09:26:13,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:13,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 09:26:13,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:13,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:13,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-13 09:26:13,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:13,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:13,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 827 [2020-10-13 09:26:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:13,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:13,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:13,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-13 09:26:13,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:13,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-13 09:26:13,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:13,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:13,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-13 09:26:13,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:13,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:13,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-13 09:26:13,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:13,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:13,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:13,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 09:26:13,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:13,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 09:26:13,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:13,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:13,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:26:13,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:13,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:14,494 INFO L134 CoverageAnalysis]: Checked inductivity of 2086 backedges. 186 proven. 370 refuted. 0 times theorem prover too weak. 1530 trivial. 0 not checked. [2020-10-13 09:26:14,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2050311868] [2020-10-13 09:26:14,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:26:14,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 09:26:14,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569656169] [2020-10-13 09:26:14,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 09:26:14,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:26:14,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 09:26:14,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 09:26:14,497 INFO L87 Difference]: Start difference. First operand 16450 states and 17801 transitions. Second operand 8 states. [2020-10-13 09:26:19,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:26:19,801 INFO L93 Difference]: Finished difference Result 36944 states and 40115 transitions. [2020-10-13 09:26:19,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 09:26:19,802 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1134 [2020-10-13 09:26:19,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:26:19,838 INFO L225 Difference]: With dead ends: 36944 [2020-10-13 09:26:19,839 INFO L226 Difference]: Without dead ends: 21178 [2020-10-13 09:26:19,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2020-10-13 09:26:19,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21178 states. [2020-10-13 09:26:20,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21178 to 19830. [2020-10-13 09:26:20,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19830 states. [2020-10-13 09:26:20,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19830 states to 19830 states and 21507 transitions. [2020-10-13 09:26:20,111 INFO L78 Accepts]: Start accepts. Automaton has 19830 states and 21507 transitions. Word has length 1134 [2020-10-13 09:26:20,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:26:20,112 INFO L479 AbstractCegarLoop]: Abstraction has 19830 states and 21507 transitions. [2020-10-13 09:26:20,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 09:26:20,112 INFO L276 IsEmpty]: Start isEmpty. Operand 19830 states and 21507 transitions. [2020-10-13 09:26:20,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1193 [2020-10-13 09:26:20,138 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:26:20,138 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:26:20,139 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 09:26:20,139 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:26:20,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:26:20,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1938889972, now seen corresponding path program 1 times [2020-10-13 09:26:20,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:26:20,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794987427] [2020-10-13 09:26:20,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:26:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:20,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:20,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:20,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:20,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:25,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:25,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1216 [2020-10-13 09:26:25,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 09:26:25,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-13 09:26:25,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:25,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:26:25,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 510 [2020-10-13 09:26:25,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 09:26:25,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:25,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:26:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:25,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:25,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:25,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:26:25,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:25,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 09:26:25,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:25,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:25,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:26:25,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:25,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:25,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:26:25,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:25,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:25,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:25,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-13 09:26:25,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:25,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 09:26:25,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:25,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:25,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:26:25,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:25,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:25,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-13 09:26:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:25,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:25,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:25,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-13 09:26:25,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:25,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 09:26:25,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:25,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:25,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:26:25,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:25,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:25,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2020-10-13 09:26:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:25,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:25,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:25,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-13 09:26:25,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:25,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 09:26:25,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:25,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:26:25,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:26:25,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-13 09:26:25,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:25,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-13 09:26:25,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:25,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:25,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:25,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 09:26:25,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:25,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 09:26:25,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:25,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:26:25,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:26:25,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 09:26:25,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:25,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 587 [2020-10-13 09:26:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:25,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:25,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:25,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 09:26:25,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:25,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 09:26:25,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:25,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:25,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-13 09:26:25,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:25,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:25,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 775 [2020-10-13 09:26:25,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:25,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:25,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:25,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 09:26:25,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:25,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 09:26:25,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:25,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:25,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-13 09:26:25,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:25,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:25,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 885 [2020-10-13 09:26:25,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:25,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:25,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:25,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-13 09:26:25,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:25,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-13 09:26:25,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:25,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:25,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-13 09:26:25,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:25,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:25,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-13 09:26:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:25,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:25,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:25,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 09:26:25,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:25,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 09:26:25,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:25,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:25,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:26:25,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:25,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:26,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2620 backedges. 377 proven. 242 refuted. 0 times theorem prover too weak. 2001 trivial. 0 not checked. [2020-10-13 09:26:26,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [794987427] [2020-10-13 09:26:26,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:26:26,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 09:26:26,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526919866] [2020-10-13 09:26:26,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 09:26:26,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:26:26,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 09:26:26,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 09:26:26,586 INFO L87 Difference]: Start difference. First operand 19830 states and 21507 transitions. Second operand 7 states. [2020-10-13 09:26:31,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:26:31,345 INFO L93 Difference]: Finished difference Result 41592 states and 45908 transitions. [2020-10-13 09:26:31,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 09:26:31,346 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1192 [2020-10-13 09:26:31,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:26:31,396 INFO L225 Difference]: With dead ends: 41592 [2020-10-13 09:26:31,396 INFO L226 Difference]: Without dead ends: 22446 [2020-10-13 09:26:31,422 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 09:26:31,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22446 states. [2020-10-13 09:26:31,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22446 to 22101. [2020-10-13 09:26:31,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22101 states. [2020-10-13 09:26:31,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22101 states to 22101 states and 24463 transitions. [2020-10-13 09:26:31,717 INFO L78 Accepts]: Start accepts. Automaton has 22101 states and 24463 transitions. Word has length 1192 [2020-10-13 09:26:31,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:26:31,717 INFO L479 AbstractCegarLoop]: Abstraction has 22101 states and 24463 transitions. [2020-10-13 09:26:31,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 09:26:31,718 INFO L276 IsEmpty]: Start isEmpty. Operand 22101 states and 24463 transitions. [2020-10-13 09:26:31,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1222 [2020-10-13 09:26:31,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:26:31,755 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:26:31,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 09:26:31,755 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:26:31,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:26:31,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1809063802, now seen corresponding path program 1 times [2020-10-13 09:26:31,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:26:31,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1321740244] [2020-10-13 09:26:31,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:26:31,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:31,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:32,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:37,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:37,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1243 [2020-10-13 09:26:37,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 09:26:37,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5135 [2020-10-13 09:26:37,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:37,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 09:26:37,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 09:26:37,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-13 09:26:37,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 09:26:37,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:26:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:37,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:37,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:37,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:26:37,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:37,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 09:26:37,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:37,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:26:37,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:26:37,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 09:26:37,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:37,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:26:37,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:37,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:37,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:37,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:37,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-13 09:26:37,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 09:26:37,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 506 [2020-10-13 09:26:37,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:37,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 09:26:37,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:26:37,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-13 09:26:37,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:38,754 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 44 [2020-10-13 09:26:39,220 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 78 [2020-10-13 09:26:39,601 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 82 [2020-10-13 09:26:40,008 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 84 [2020-10-13 09:26:40,468 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2020-10-13 09:26:40,950 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 90 [2020-10-13 09:26:42,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-13 09:26:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:42,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:42,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:42,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-13 09:26:42,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:42,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-13 09:26:42,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:42,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:42,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 274 [2020-10-13 09:26:42,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:42,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:42,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-13 09:26:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:42,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:42,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:42,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 09:26:42,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:42,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 09:26:42,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:42,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:42,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-13 09:26:42,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:42,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:42,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-13 09:26:42,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:42,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:42,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:42,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 09:26:42,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:42,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 09:26:42,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:42,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:42,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-13 09:26:42,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:42,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:42,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-13 09:26:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:42,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:42,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:42,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 09:26:42,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:42,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 09:26:42,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:42,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:42,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-13 09:26:42,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:42,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:42,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-13 09:26:42,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:42,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:42,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:42,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-13 09:26:42,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:42,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 09:26:42,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:42,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:42,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-13 09:26:42,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:42,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:42,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-13 09:26:42,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:42,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:26:42,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:26:42,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 09:26:42,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:26:42,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 09:26:42,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:26:42,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:26:42,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:26:42,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:26:42,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:26:49,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2271 backedges. 78 proven. 854 refuted. 0 times theorem prover too weak. 1339 trivial. 0 not checked. [2020-10-13 09:26:49,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1321740244] [2020-10-13 09:26:49,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:26:49,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 09:26:49,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18172242] [2020-10-13 09:26:49,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 09:26:49,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:26:49,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 09:26:49,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 09:26:49,235 INFO L87 Difference]: Start difference. First operand 22101 states and 24463 transitions. Second operand 13 states. [2020-10-13 09:26:49,563 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2020-10-13 09:26:50,357 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 54 [2020-10-13 09:26:50,960 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 60 [2020-10-13 09:26:51,467 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 63 [2020-10-13 09:26:52,147 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 66 [2020-10-13 09:26:52,838 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 69 [2020-10-13 09:26:53,006 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 42 [2020-10-13 09:26:53,427 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 72 [2020-10-13 09:26:54,385 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 65 [2020-10-13 09:26:54,851 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 70 [2020-10-13 09:26:55,250 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 73 [2020-10-13 09:26:55,734 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 76 [2020-10-13 09:26:56,247 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 79 [2020-10-13 09:26:56,703 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 96 [2020-10-13 09:26:57,588 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 106 [2020-10-13 09:26:58,954 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 93 [2020-10-13 09:26:59,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:26:59,230 INFO L93 Difference]: Finished difference Result 43644 states and 47594 transitions. [2020-10-13 09:26:59,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 09:26:59,231 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1221 [2020-10-13 09:26:59,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:26:59,258 INFO L225 Difference]: With dead ends: 43644 [2020-10-13 09:26:59,258 INFO L226 Difference]: Without dead ends: 21457 [2020-10-13 09:26:59,282 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=265, Invalid=665, Unknown=0, NotChecked=0, Total=930 [2020-10-13 09:26:59,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21457 states. [2020-10-13 09:26:59,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21457 to 21455. [2020-10-13 09:26:59,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21455 states. [2020-10-13 09:26:59,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21455 states to 21455 states and 23040 transitions. [2020-10-13 09:26:59,558 INFO L78 Accepts]: Start accepts. Automaton has 21455 states and 23040 transitions. Word has length 1221 [2020-10-13 09:26:59,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:26:59,559 INFO L479 AbstractCegarLoop]: Abstraction has 21455 states and 23040 transitions. [2020-10-13 09:26:59,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 09:26:59,559 INFO L276 IsEmpty]: Start isEmpty. Operand 21455 states and 23040 transitions. [2020-10-13 09:26:59,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1469 [2020-10-13 09:26:59,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:26:59,592 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 09:26:59,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 09:26:59,592 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:26:59,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:26:59,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1798273622, now seen corresponding path program 1 times [2020-10-13 09:26:59,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:26:59,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [982344672] [2020-10-13 09:26:59,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:26:59,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:26:59,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:00,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:04,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:04,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1492 [2020-10-13 09:27:04,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 09:27:04,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-13 09:27:04,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:04,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:27:04,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 257 [2020-10-13 09:27:04,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 252 [2020-10-13 09:27:04,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:04,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:27:04,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:04,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:04,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:04,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:27:04,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:04,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 09:27:04,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:04,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:27:04,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:27:04,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:27:04,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:04,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:27:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:04,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:05,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:05,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-13 09:27:05,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:05,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-13 09:27:05,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:05,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:27:05,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:27:05,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-13 09:27:05,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:05,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-13 09:27:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:05,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:05,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:05,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-13 09:27:05,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:05,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-13 09:27:05,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:05,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:27:05,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:27:05,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-13 09:27:05,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:05,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-13 09:27:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:05,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:05,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:05,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-13 09:27:05,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:05,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-13 09:27:05,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:05,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:27:05,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 274 [2020-10-13 09:27:05,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:27:05,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:05,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 780 [2020-10-13 09:27:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:05,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:05,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:05,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 09:27:05,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:05,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 09:27:05,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:05,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:27:05,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-13 09:27:05,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:27:05,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:05,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 863 [2020-10-13 09:27:05,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:05,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:05,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:05,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 09:27:05,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:05,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 09:27:05,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:05,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:27:05,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-13 09:27:05,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:27:05,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:05,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1051 [2020-10-13 09:27:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:05,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:05,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:05,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 09:27:05,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:05,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 09:27:05,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:05,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:27:05,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-13 09:27:05,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:27:05,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:06,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1161 [2020-10-13 09:27:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:06,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:06,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:06,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-13 09:27:06,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:06,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-13 09:27:06,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:06,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:27:06,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-13 09:27:06,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:27:06,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:06,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-13 09:27:06,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:06,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:06,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:06,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 09:27:06,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:06,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 09:27:06,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:06,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:27:06,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:27:06,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:27:06,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:07,510 INFO L134 CoverageAnalysis]: Checked inductivity of 3406 backedges. 355 proven. 866 refuted. 0 times theorem prover too weak. 2185 trivial. 0 not checked. [2020-10-13 09:27:07,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [982344672] [2020-10-13 09:27:07,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:27:07,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 09:27:07,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509365914] [2020-10-13 09:27:07,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 09:27:07,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:27:07,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 09:27:07,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 09:27:07,512 INFO L87 Difference]: Start difference. First operand 21455 states and 23040 transitions. Second operand 7 states. [2020-10-13 09:27:11,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:27:11,305 INFO L93 Difference]: Finished difference Result 42321 states and 45486 transitions. [2020-10-13 09:27:11,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 09:27:11,306 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1468 [2020-10-13 09:27:11,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:27:11,334 INFO L225 Difference]: With dead ends: 42321 [2020-10-13 09:27:11,334 INFO L226 Difference]: Without dead ends: 21457 [2020-10-13 09:27:11,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-13 09:27:11,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21457 states. [2020-10-13 09:27:11,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21457 to 21455. [2020-10-13 09:27:11,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21455 states. [2020-10-13 09:27:11,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21455 states to 21455 states and 23038 transitions. [2020-10-13 09:27:11,557 INFO L78 Accepts]: Start accepts. Automaton has 21455 states and 23038 transitions. Word has length 1468 [2020-10-13 09:27:11,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:27:11,558 INFO L479 AbstractCegarLoop]: Abstraction has 21455 states and 23038 transitions. [2020-10-13 09:27:11,558 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 09:27:11,558 INFO L276 IsEmpty]: Start isEmpty. Operand 21455 states and 23038 transitions. [2020-10-13 09:27:11,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1485 [2020-10-13 09:27:11,588 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:27:11,589 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:27:11,589 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 09:27:11,589 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:27:11,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:27:11,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1945114307, now seen corresponding path program 1 times [2020-10-13 09:27:11,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:27:11,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [165198234] [2020-10-13 09:27:11,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:27:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:11,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:12,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:12,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:16,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:16,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1510 [2020-10-13 09:27:16,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 09:27:16,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-13 09:27:16,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:16,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:27:16,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 804 [2020-10-13 09:27:16,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 09:27:16,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:16,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:27:16,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:16,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:16,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:16,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:27:16,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:16,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 09:27:16,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:16,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:27:16,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:27:16,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:27:16,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:16,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:27:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:16,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:16,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:16,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-13 09:27:16,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:16,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 09:27:16,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:16,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:27:16,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:27:16,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:27:16,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:17,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-13 09:27:17,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:17,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:17,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:17,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-13 09:27:17,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:17,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 09:27:17,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:17,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:27:17,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:27:17,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:27:17,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:17,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-13 09:27:17,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:17,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:17,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:17,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 09:27:17,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:17,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 09:27:17,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:17,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:27:17,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:27:17,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:27:17,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:17,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-13 09:27:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:17,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:17,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:17,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-13 09:27:17,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:17,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-13 09:27:17,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:17,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:27:17,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:27:17,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-13 09:27:17,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:17,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2020-10-13 09:27:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:17,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:17,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:17,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 09:27:17,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:17,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 09:27:17,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:17,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:27:17,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:27:17,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 09:27:17,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:17,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 879 [2020-10-13 09:27:17,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:17,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:17,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:17,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 09:27:17,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:17,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-13 09:27:17,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:17,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:27:17,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-13 09:27:17,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:27:17,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:17,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-13 09:27:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:17,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:17,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:17,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 09:27:17,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:17,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 09:27:17,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:17,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:27:17,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-13 09:27:17,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:27:17,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:17,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1177 [2020-10-13 09:27:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:17,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:17,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:17,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-13 09:27:17,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:17,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-13 09:27:17,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:17,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:27:17,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-13 09:27:17,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:27:17,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:17,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-13 09:27:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:17,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:17,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:17,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 09:27:17,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:17,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 09:27:17,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:17,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:27:17,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:27:17,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:27:17,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:18,693 INFO L134 CoverageAnalysis]: Checked inductivity of 4016 backedges. 487 proven. 242 refuted. 0 times theorem prover too weak. 3287 trivial. 0 not checked. [2020-10-13 09:27:18,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [165198234] [2020-10-13 09:27:18,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 09:27:18,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 09:27:18,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036384659] [2020-10-13 09:27:18,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 09:27:18,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 09:27:18,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 09:27:18,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 09:27:18,695 INFO L87 Difference]: Start difference. First operand 21455 states and 23038 transitions. Second operand 7 states. [2020-10-13 09:27:23,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 09:27:23,281 INFO L93 Difference]: Finished difference Result 47066 states and 50630 transitions. [2020-10-13 09:27:23,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 09:27:23,282 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1484 [2020-10-13 09:27:23,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 09:27:23,329 INFO L225 Difference]: With dead ends: 47066 [2020-10-13 09:27:23,329 INFO L226 Difference]: Without dead ends: 26202 [2020-10-13 09:27:23,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-13 09:27:23,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26202 states. [2020-10-13 09:27:23,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26202 to 25185. [2020-10-13 09:27:23,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25185 states. [2020-10-13 09:27:23,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25185 states to 25185 states and 27008 transitions. [2020-10-13 09:27:23,602 INFO L78 Accepts]: Start accepts. Automaton has 25185 states and 27008 transitions. Word has length 1484 [2020-10-13 09:27:23,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 09:27:23,603 INFO L479 AbstractCegarLoop]: Abstraction has 25185 states and 27008 transitions. [2020-10-13 09:27:23,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 09:27:23,604 INFO L276 IsEmpty]: Start isEmpty. Operand 25185 states and 27008 transitions. [2020-10-13 09:27:23,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1531 [2020-10-13 09:27:23,630 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 09:27:23,631 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 09:27:23,631 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 09:27:23,631 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 09:27:23,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 09:27:23,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1336113729, now seen corresponding path program 1 times [2020-10-13 09:27:23,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 09:27:23,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1019165314] [2020-10-13 09:27:23,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 09:27:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:23,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:24,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:24,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:24,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:28,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:28,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1558 [2020-10-13 09:27:28,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 09:27:28,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5086 [2020-10-13 09:27:28,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:28,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:27:28,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1124 [2020-10-13 09:27:28,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-13 09:27:28,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:29,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 09:27:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:29,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:29,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:29,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 09:27:29,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:29,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 09:27:29,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:29,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:27:29,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:27:29,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:27:29,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:29,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 09:27:29,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:29,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:29,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:29,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-13 09:27:29,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:29,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 09:27:29,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:29,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:27:29,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:27:29,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:27:29,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:29,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-13 09:27:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:29,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:29,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:29,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-13 09:27:29,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:29,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 09:27:29,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:29,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:27:29,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:27:29,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:27:29,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:29,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-13 09:27:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:29,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:29,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:29,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 09:27:29,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:29,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 09:27:29,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:29,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:27:29,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:27:29,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:27:29,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:29,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-13 09:27:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:29,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:29,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:29,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 09:27:29,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:29,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 09:27:29,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:29,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:27:29,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:27:29,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:27:29,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:29,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-13 09:27:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:29,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:29,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:29,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-13 09:27:29,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:29,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 09:27:29,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:29,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:27:29,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:27:29,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:27:29,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:29,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2020-10-13 09:27:29,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:29,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:29,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:29,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-13 09:27:29,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:29,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 317 [2020-10-13 09:27:29,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:29,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:27:29,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:27:29,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 321 [2020-10-13 09:27:29,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:29,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-13 09:27:29,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:29,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:29,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:29,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 09:27:29,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:29,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 09:27:29,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:29,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 09:27:29,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:27:29,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 09:27:29,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:29,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1113 [2020-10-13 09:27:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:29,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:29,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:29,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 09:27:29,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:29,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 09:27:29,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:29,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 09:27:29,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 09:27:29,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 09:27:29,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:29,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1223 [2020-10-13 09:27:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:30,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:30,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:30,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-13 09:27:30,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:30,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 09:27:30,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:30,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:27:30,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-13 09:27:30,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:27:30,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 09:27:30,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-13 09:27:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 09:27:30,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 09:27:30,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 09:27:30,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 09:27:30,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 09:27:30,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 09:27:30,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 09:27:30,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 09:27:30,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 09:27:30,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 09:27:30,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0