/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/Problem14_label55.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 08:55:37,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 08:55:37,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 08:55:37,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 08:55:37,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 08:55:37,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 08:55:37,450 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 08:55:37,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 08:55:37,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 08:55:37,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 08:55:37,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 08:55:37,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 08:55:37,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 08:55:37,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 08:55:37,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 08:55:37,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 08:55:37,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 08:55:37,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 08:55:37,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 08:55:37,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 08:55:37,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 08:55:37,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 08:55:37,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 08:55:37,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 08:55:37,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 08:55:37,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 08:55:37,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 08:55:37,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 08:55:37,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 08:55:37,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 08:55:37,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 08:55:37,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 08:55:37,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 08:55:37,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 08:55:37,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 08:55:37,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 08:55:37,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 08:55:37,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 08:55:37,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 08:55:37,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 08:55:37,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 08:55:37,485 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 08:55:37,508 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 08:55:37,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 08:55:37,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 08:55:37,510 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 08:55:37,510 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 08:55:37,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 08:55:37,510 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 08:55:37,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 08:55:37,511 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 08:55:37,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 08:55:37,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 08:55:37,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 08:55:37,512 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 08:55:37,512 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 08:55:37,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 08:55:37,512 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 08:55:37,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 08:55:37,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 08:55:37,513 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 08:55:37,513 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 08:55:37,513 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 08:55:37,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 08:55:37,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 08:55:37,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 08:55:37,514 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 08:55:37,514 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 08:55:37,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 08:55:37,515 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 08:55:37,515 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 08:55:37,515 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 08:55:37,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 08:55:37,865 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 08:55:37,869 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 08:55:37,871 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 08:55:37,871 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 08:55:37,872 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label55.c [2020-10-13 08:55:37,933 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fd71085a1/598b52205b4545538113eeab671855ce/FLAGe5bd5e43e [2020-10-13 08:55:38,508 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 08:55:38,509 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label55.c [2020-10-13 08:55:38,524 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fd71085a1/598b52205b4545538113eeab671855ce/FLAGe5bd5e43e [2020-10-13 08:55:38,782 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fd71085a1/598b52205b4545538113eeab671855ce [2020-10-13 08:55:38,790 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 08:55:38,792 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 08:55:38,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 08:55:38,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 08:55:38,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 08:55:38,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:55:38" (1/1) ... [2020-10-13 08:55:38,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc9c326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:38, skipping insertion in model container [2020-10-13 08:55:38,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:55:38" (1/1) ... [2020-10-13 08:55:38,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 08:55:38,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 08:55:39,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:55:39,461 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 08:55:39,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:55:39,656 INFO L208 MainTranslator]: Completed translation [2020-10-13 08:55:39,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:39 WrapperNode [2020-10-13 08:55:39,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 08:55:39,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 08:55:39,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 08:55:39,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 08:55:39,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:39" (1/1) ... [2020-10-13 08:55:39,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:39" (1/1) ... [2020-10-13 08:55:39,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:39" (1/1) ... [2020-10-13 08:55:39,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:39" (1/1) ... [2020-10-13 08:55:39,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:39" (1/1) ... [2020-10-13 08:55:39,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:39" (1/1) ... [2020-10-13 08:55:39,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:39" (1/1) ... [2020-10-13 08:55:39,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 08:55:39,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 08:55:39,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 08:55:39,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 08:55:39,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:39" (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 08:55:39,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 08:55:39,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 08:55:39,873 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 08:55:39,873 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 08:55:39,874 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 08:55:39,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 08:55:39,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 08:55:39,874 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 08:55:39,874 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 08:55:39,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 08:55:39,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 08:55:41,460 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 08:55:41,460 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 08:55:41,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:55:41 BoogieIcfgContainer [2020-10-13 08:55:41,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 08:55:41,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 08:55:41,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 08:55:41,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 08:55:41,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:55:38" (1/3) ... [2020-10-13 08:55:41,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a90cff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:55:41, skipping insertion in model container [2020-10-13 08:55:41,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:39" (2/3) ... [2020-10-13 08:55:41,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a90cff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:55:41, skipping insertion in model container [2020-10-13 08:55:41,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:55:41" (3/3) ... [2020-10-13 08:55:41,477 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label55.c [2020-10-13 08:55:41,489 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 08:55:41,498 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 08:55:41,514 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 08:55:41,544 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 08:55:41,545 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 08:55:41,545 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 08:55:41,545 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 08:55:41,545 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 08:55:41,546 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 08:55:41,546 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 08:55:41,546 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 08:55:41,571 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-13 08:55:41,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-13 08:55:41,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:41,582 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:55:41,583 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:41,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:41,589 INFO L82 PathProgramCache]: Analyzing trace with hash 606791250, now seen corresponding path program 1 times [2020-10-13 08:55:41,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:41,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1365527904] [2020-10-13 08:55:41,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:41,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:42,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:42,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 08:55:42,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:42,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 510 [2020-10-13 08:55:42,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:42,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:55:42,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:55:42,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 08:55:42,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 08:55:42,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:42,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:42,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:42,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:42,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:42,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:42,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:55:42,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:42,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:42,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:42,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:55:42,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:55:42,503 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 08:55:42,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1365527904] [2020-10-13 08:55:42,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 08:55:42,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 08:55:42,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590379278] [2020-10-13 08:55:42,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 08:55:42,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:42,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 08:55:42,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 08:55:42,533 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2020-10-13 08:55:44,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:44,284 INFO L93 Difference]: Finished difference Result 698 states and 1241 transitions. [2020-10-13 08:55:44,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:55:44,286 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2020-10-13 08:55:44,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:44,305 INFO L225 Difference]: With dead ends: 698 [2020-10-13 08:55:44,306 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:55:44,314 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 08:55:44,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:55:44,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:55:44,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:55:44,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 604 transitions. [2020-10-13 08:55:44,400 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 604 transitions. Word has length 63 [2020-10-13 08:55:44,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:44,401 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 604 transitions. [2020-10-13 08:55:44,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 08:55:44,401 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 604 transitions. [2020-10-13 08:55:44,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-13 08:55:44,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:44,408 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 08:55:44,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 08:55:44,409 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:44,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:44,409 INFO L82 PathProgramCache]: Analyzing trace with hash 142706633, now seen corresponding path program 1 times [2020-10-13 08:55:44,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:44,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1968284989] [2020-10-13 08:55:44,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:44,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:44,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:44,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:45,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:46,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:46,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-13 08:55:46,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:55:46,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1643 [2020-10-13 08:55:46,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:46,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:46,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-13 08:55:46,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 08:55:46,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:55:46,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:46,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:46,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:46,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:46,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:46,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:55:46,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:46,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:46,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:46,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:46,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:55:46,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:46,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:46,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:46,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:46,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:55:46,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:46,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-13 08:55:46,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:46,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:46,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:46,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 08:55:46,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:46,459 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:55:46,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1968284989] [2020-10-13 08:55:46,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:46,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:55:46,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897681512] [2020-10-13 08:55:46,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:55:46,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:46,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:55:46,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:55:46,472 INFO L87 Difference]: Start difference. First operand 374 states and 604 transitions. Second operand 5 states. [2020-10-13 08:55:47,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:47,648 INFO L93 Difference]: Finished difference Result 781 states and 1250 transitions. [2020-10-13 08:55:47,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:55:47,649 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2020-10-13 08:55:47,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:47,653 INFO L225 Difference]: With dead ends: 781 [2020-10-13 08:55:47,653 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:55:47,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 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 08:55:47,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:55:47,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:55:47,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:55:47,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 550 transitions. [2020-10-13 08:55:47,712 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 550 transitions. Word has length 132 [2020-10-13 08:55:47,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:47,715 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 550 transitions. [2020-10-13 08:55:47,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:55:47,715 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 550 transitions. [2020-10-13 08:55:47,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-13 08:55:47,718 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:47,719 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 08:55:47,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 08:55:47,721 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:47,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:47,722 INFO L82 PathProgramCache]: Analyzing trace with hash -624812690, now seen corresponding path program 1 times [2020-10-13 08:55:47,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:47,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1346067736] [2020-10-13 08:55:47,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:47,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:47,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:48,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:49,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:49,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:49,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 08:55:49,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:55:49,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1379 [2020-10-13 08:55:49,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:49,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:49,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-13 08:55:49,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 08:55:49,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:49,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:49,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:49,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:49,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:49,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:49,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:49,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:55:49,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:49,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:49,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:49,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:49,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:49,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:49,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:49,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:49,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:49,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 08:55:49,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:49,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 08:55:49,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:49,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:49,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:49,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 08:55:49,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:49,434 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:55:49,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1346067736] [2020-10-13 08:55:49,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:49,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:55:49,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253794125] [2020-10-13 08:55:49,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:55:49,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:49,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:55:49,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:55:49,438 INFO L87 Difference]: Start difference. First operand 374 states and 550 transitions. Second operand 5 states. [2020-10-13 08:55:50,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:50,508 INFO L93 Difference]: Finished difference Result 781 states and 1142 transitions. [2020-10-13 08:55:50,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:55:50,509 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2020-10-13 08:55:50,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:50,517 INFO L225 Difference]: With dead ends: 781 [2020-10-13 08:55:50,517 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:55:50,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 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 08:55:50,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:55:50,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:55:50,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:55:50,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 490 transitions. [2020-10-13 08:55:50,547 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 490 transitions. Word has length 133 [2020-10-13 08:55:50,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:50,549 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 490 transitions. [2020-10-13 08:55:50,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:55:50,550 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 490 transitions. [2020-10-13 08:55:50,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-13 08:55:50,557 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:50,557 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 08:55:50,557 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 08:55:50,557 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:50,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:50,558 INFO L82 PathProgramCache]: Analyzing trace with hash 209804561, now seen corresponding path program 1 times [2020-10-13 08:55:50,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:50,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1975723777] [2020-10-13 08:55:50,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:50,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:50,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:50,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:51,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:51,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:51,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-13 08:55:51,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:55:51,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1121 [2020-10-13 08:55:51,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:51,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:55:51,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-13 08:55:51,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-13 08:55:51,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:51,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:51,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:51,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:51,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:51,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:51,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:51,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:55:51,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:51,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:51,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:51,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:51,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:51,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:51,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:51,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:51,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:55:51,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:51,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 08:55:51,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:51,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:51,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:51,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 08:55:51,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:51,988 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:55:51,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1975723777] [2020-10-13 08:55:51,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:51,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:55:51,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493062101] [2020-10-13 08:55:51,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:55:51,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:51,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:55:51,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:55:51,991 INFO L87 Difference]: Start difference. First operand 374 states and 490 transitions. Second operand 8 states. [2020-10-13 08:55:52,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:52,999 INFO L93 Difference]: Finished difference Result 802 states and 1043 transitions. [2020-10-13 08:55:53,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 08:55:53,000 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 136 [2020-10-13 08:55:53,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:53,004 INFO L225 Difference]: With dead ends: 802 [2020-10-13 08:55:53,004 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:55:53,007 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:55:53,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:55:53,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:55:53,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:55:53,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 474 transitions. [2020-10-13 08:55:53,027 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 474 transitions. Word has length 136 [2020-10-13 08:55:53,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:53,029 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 474 transitions. [2020-10-13 08:55:53,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:55:53,029 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 474 transitions. [2020-10-13 08:55:53,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-13 08:55:53,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:53,034 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 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 08:55:53,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 08:55:53,034 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:53,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:53,035 INFO L82 PathProgramCache]: Analyzing trace with hash -32048842, now seen corresponding path program 1 times [2020-10-13 08:55:53,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:53,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733826299] [2020-10-13 08:55:53,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:53,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:53,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:53,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:53,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:54,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:54,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-13 08:55:54,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:55:54,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1155 [2020-10-13 08:55:54,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:54,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:54,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 08:55:54,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 08:55:54,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:54,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:54,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:54,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:54,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:54,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:54,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:55:54,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:54,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:54,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:54,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:54,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:54,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:54,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:54,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:54,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:54,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-13 08:55:54,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:54,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 08:55:54,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:54,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:54,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:54,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 08:55:54,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:54,495 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:55:54,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733826299] [2020-10-13 08:55:54,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:54,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:55:54,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589335233] [2020-10-13 08:55:54,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:55:54,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:54,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:55:54,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:55:54,499 INFO L87 Difference]: Start difference. First operand 374 states and 474 transitions. Second operand 5 states. [2020-10-13 08:55:55,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:55,301 INFO L93 Difference]: Finished difference Result 766 states and 975 transitions. [2020-10-13 08:55:55,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:55:55,302 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 137 [2020-10-13 08:55:55,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:55,305 INFO L225 Difference]: With dead ends: 766 [2020-10-13 08:55:55,305 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:55:55,307 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 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 08:55:55,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:55:55,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:55:55,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:55:55,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 472 transitions. [2020-10-13 08:55:55,324 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 472 transitions. Word has length 137 [2020-10-13 08:55:55,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:55,325 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 472 transitions. [2020-10-13 08:55:55,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:55:55,325 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 472 transitions. [2020-10-13 08:55:55,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-13 08:55:55,327 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:55,327 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:55:55,327 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 08:55:55,328 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:55,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:55,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1821849314, now seen corresponding path program 1 times [2020-10-13 08:55:55,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:55,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [688388727] [2020-10-13 08:55:55,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:55,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:55,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:55,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:55,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:56,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:56,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:56,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-13 08:55:56,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:55:56,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1009 [2020-10-13 08:55:56,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:56,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:56,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-13 08:55:56,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 08:55:56,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:55:56,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:56,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:56,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:56,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:56,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:56,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:56,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:55:56,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:56,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:56,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:56,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:56,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:55:56,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:56,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:56,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:56,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 08:55:56,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:56,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 08:55:56,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:56,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:56,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:56,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 08:55:56,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:56,633 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:55:56,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [688388727] [2020-10-13 08:55:56,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:56,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:55:56,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183701785] [2020-10-13 08:55:56,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:55:56,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:56,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:55:56,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:55:56,636 INFO L87 Difference]: Start difference. First operand 374 states and 472 transitions. Second operand 5 states. [2020-10-13 08:55:57,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:57,484 INFO L93 Difference]: Finished difference Result 779 states and 984 transitions. [2020-10-13 08:55:57,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:55:57,485 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2020-10-13 08:55:57,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:57,487 INFO L225 Difference]: With dead ends: 779 [2020-10-13 08:55:57,488 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:55:57,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:55:57,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:55:57,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:55:57,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:55:57,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 470 transitions. [2020-10-13 08:55:57,502 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 470 transitions. Word has length 143 [2020-10-13 08:55:57,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:57,503 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 470 transitions. [2020-10-13 08:55:57,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:55:57,503 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 470 transitions. [2020-10-13 08:55:57,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-13 08:55:57,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:57,506 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:55:57,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 08:55:57,506 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:57,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:57,506 INFO L82 PathProgramCache]: Analyzing trace with hash 346918469, now seen corresponding path program 1 times [2020-10-13 08:55:57,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:57,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1822828884] [2020-10-13 08:55:57,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:57,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:57,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:57,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:58,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:58,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-13 08:55:58,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:55:58,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1026 [2020-10-13 08:55:58,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:58,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:58,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 08:55:58,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 08:55:58,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:55:58,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:58,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:58,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:58,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:58,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:58,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:58,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:55:58,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:58,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:58,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:58,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:58,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:58,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:58,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:58,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:58,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 08:55:58,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:58,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-13 08:55:58,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:58,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:58,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:58,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 08:55:58,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:58,795 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:55:58,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1822828884] [2020-10-13 08:55:58,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:58,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:55:58,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958375132] [2020-10-13 08:55:58,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:55:58,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:58,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:55:58,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:55:58,798 INFO L87 Difference]: Start difference. First operand 374 states and 470 transitions. Second operand 5 states. [2020-10-13 08:55:59,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:59,566 INFO L93 Difference]: Finished difference Result 760 states and 961 transitions. [2020-10-13 08:55:59,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:55:59,567 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2020-10-13 08:55:59,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:59,569 INFO L225 Difference]: With dead ends: 760 [2020-10-13 08:55:59,570 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:55:59,571 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 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 08:55:59,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:55:59,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:55:59,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:55:59,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 468 transitions. [2020-10-13 08:55:59,584 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 468 transitions. Word has length 146 [2020-10-13 08:55:59,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:59,585 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 468 transitions. [2020-10-13 08:55:59,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:55:59,585 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 468 transitions. [2020-10-13 08:55:59,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-13 08:55:59,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:59,587 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:55:59,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 08:55:59,587 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:59,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:59,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1346646898, now seen corresponding path program 1 times [2020-10-13 08:55:59,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:59,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623355161] [2020-10-13 08:55:59,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:59,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:59,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:59,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:00,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:00,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-13 08:56:00,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:56:00,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1223 [2020-10-13 08:56:00,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:00,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:56:00,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-13 08:56:00,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-13 08:56:00,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:00,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:00,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:00,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:00,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:00,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:00,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:56:00,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:00,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:00,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:00,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:00,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:00,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:00,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:01,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:01,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:56:01,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:01,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 08:56:01,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:01,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:01,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:01,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 08:56:01,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:01,127 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:56:01,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623355161] [2020-10-13 08:56:01,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:01,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:56:01,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228467391] [2020-10-13 08:56:01,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:56:01,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:01,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:56:01,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:56:01,130 INFO L87 Difference]: Start difference. First operand 374 states and 468 transitions. Second operand 8 states. [2020-10-13 08:56:02,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:02,211 INFO L93 Difference]: Finished difference Result 799 states and 996 transitions. [2020-10-13 08:56:02,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 08:56:02,211 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 149 [2020-10-13 08:56:02,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:02,213 INFO L225 Difference]: With dead ends: 799 [2020-10-13 08:56:02,214 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:56:02,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:56:02,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:56:02,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:56:02,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:56:02,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 464 transitions. [2020-10-13 08:56:02,230 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 464 transitions. Word has length 149 [2020-10-13 08:56:02,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:02,231 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 464 transitions. [2020-10-13 08:56:02,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:56:02,231 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 464 transitions. [2020-10-13 08:56:02,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-13 08:56:02,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:02,233 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:02,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 08:56:02,234 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:02,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:02,234 INFO L82 PathProgramCache]: Analyzing trace with hash -522012102, now seen corresponding path program 1 times [2020-10-13 08:56:02,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:02,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1544178640] [2020-10-13 08:56:02,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:02,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:02,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:02,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:02,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:03,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:03,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-13 08:56:03,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:56:03,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 820 [2020-10-13 08:56:03,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:03,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:03,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-13 08:56:03,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 08:56:03,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:56:03,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:03,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:03,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:03,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:03,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:03,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:03,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:56:03,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:03,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:03,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:03,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:03,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:03,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:03,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:03,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:03,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:03,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-13 08:56:03,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:03,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-13 08:56:03,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:03,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:03,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:03,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 08:56:03,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:03,357 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:56:03,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1544178640] [2020-10-13 08:56:03,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:03,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:56:03,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000016264] [2020-10-13 08:56:03,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:56:03,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:03,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:56:03,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:56:03,360 INFO L87 Difference]: Start difference. First operand 374 states and 464 transitions. Second operand 5 states. [2020-10-13 08:56:04,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:04,397 INFO L93 Difference]: Finished difference Result 763 states and 952 transitions. [2020-10-13 08:56:04,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:56:04,398 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-10-13 08:56:04,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:04,402 INFO L225 Difference]: With dead ends: 763 [2020-10-13 08:56:04,402 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:56:04,404 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 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 08:56:04,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:56:04,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:56:04,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:56:04,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 462 transitions. [2020-10-13 08:56:04,420 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 462 transitions. Word has length 155 [2020-10-13 08:56:04,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:04,420 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 462 transitions. [2020-10-13 08:56:04,420 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:56:04,420 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 462 transitions. [2020-10-13 08:56:04,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-13 08:56:04,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:04,422 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:04,423 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 08:56:04,423 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:04,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:04,423 INFO L82 PathProgramCache]: Analyzing trace with hash -939596770, now seen corresponding path program 1 times [2020-10-13 08:56:04,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:04,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [955469648] [2020-10-13 08:56:04,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:04,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:04,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:04,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:04,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:05,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:05,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-13 08:56:05,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:56:05,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 938 [2020-10-13 08:56:05,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:05,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:05,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-13 08:56:05,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 08:56:05,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:05,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:05,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:05,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:05,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:05,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:05,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:05,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:56:05,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:05,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:05,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:05,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:05,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:05,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:05,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:05,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:05,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:05,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-13 08:56:05,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:05,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 08:56:05,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:05,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:05,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:05,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 08:56:05,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:56:05,752 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:56:05,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [955469648] [2020-10-13 08:56:05,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:05,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:56:05,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720738562] [2020-10-13 08:56:05,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:56:05,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:05,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:56:05,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:56:05,755 INFO L87 Difference]: Start difference. First operand 374 states and 462 transitions. Second operand 5 states. [2020-10-13 08:56:06,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:06,690 INFO L93 Difference]: Finished difference Result 773 states and 958 transitions. [2020-10-13 08:56:06,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:56:06,691 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-10-13 08:56:06,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:06,693 INFO L225 Difference]: With dead ends: 773 [2020-10-13 08:56:06,694 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:56:06,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:56:06,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:56:06,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:56:06,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:56:06,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 460 transitions. [2020-10-13 08:56:06,708 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 460 transitions. Word has length 157 [2020-10-13 08:56:06,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:06,709 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 460 transitions. [2020-10-13 08:56:06,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:56:06,709 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 460 transitions. [2020-10-13 08:56:06,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-13 08:56:06,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:06,711 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:06,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 08:56:06,712 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:06,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:06,712 INFO L82 PathProgramCache]: Analyzing trace with hash -521994723, now seen corresponding path program 1 times [2020-10-13 08:56:06,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:06,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [288545268] [2020-10-13 08:56:06,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:06,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:06,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:06,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:07,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:07,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-13 08:56:07,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:56:07,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1029 [2020-10-13 08:56:07,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:07,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:07,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-13 08:56:07,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 08:56:07,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:07,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:07,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:07,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:07,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:07,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:07,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:56:07,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:07,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:07,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:07,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:07,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:07,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:07,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:07,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:07,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-13 08:56:07,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:07,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-13 08:56:07,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:07,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:07,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:07,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 08:56:07,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:07,993 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:56:07,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [288545268] [2020-10-13 08:56:07,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:07,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:56:07,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516977095] [2020-10-13 08:56:07,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:56:07,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:07,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:56:07,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:56:07,996 INFO L87 Difference]: Start difference. First operand 374 states and 460 transitions. Second operand 5 states. [2020-10-13 08:56:08,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:08,736 INFO L93 Difference]: Finished difference Result 761 states and 942 transitions. [2020-10-13 08:56:08,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:56:08,737 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 158 [2020-10-13 08:56:08,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:08,740 INFO L225 Difference]: With dead ends: 761 [2020-10-13 08:56:08,740 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:56:08,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 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 08:56:08,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:56:08,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:56:08,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:56:08,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 458 transitions. [2020-10-13 08:56:08,755 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 458 transitions. Word has length 158 [2020-10-13 08:56:08,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:08,756 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 458 transitions. [2020-10-13 08:56:08,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:56:08,756 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 458 transitions. [2020-10-13 08:56:08,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-13 08:56:08,758 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:08,758 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:08,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 08:56:08,759 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:08,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:08,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1833606299, now seen corresponding path program 1 times [2020-10-13 08:56:08,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:08,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [710549467] [2020-10-13 08:56:08,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:08,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:08,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:08,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:09,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:09,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:09,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:09,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-13 08:56:09,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:56:09,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 962 [2020-10-13 08:56:09,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:09,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:09,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-10-13 08:56:09,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 08:56:09,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:56:09,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:09,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:09,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:09,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:09,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:09,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:56:09,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:09,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:09,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:09,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:09,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:56:09,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:09,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:09,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:09,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:09,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:56:09,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:09,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 08:56:09,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:09,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:09,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:09,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-13 08:56:09,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:10,065 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:56:10,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [710549467] [2020-10-13 08:56:10,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:10,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:56:10,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715152789] [2020-10-13 08:56:10,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:56:10,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:10,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:56:10,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:56:10,070 INFO L87 Difference]: Start difference. First operand 374 states and 458 transitions. Second operand 5 states. [2020-10-13 08:56:10,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:10,952 INFO L93 Difference]: Finished difference Result 771 states and 948 transitions. [2020-10-13 08:56:10,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:56:10,953 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 162 [2020-10-13 08:56:10,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:10,956 INFO L225 Difference]: With dead ends: 771 [2020-10-13 08:56:10,956 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:56:10,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:56:10,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:56:10,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:56:10,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:56:10,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 456 transitions. [2020-10-13 08:56:10,974 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 456 transitions. Word has length 162 [2020-10-13 08:56:10,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:10,975 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 456 transitions. [2020-10-13 08:56:10,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:56:10,975 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 456 transitions. [2020-10-13 08:56:10,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-13 08:56:10,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:10,977 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:10,977 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 08:56:10,978 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:10,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:10,978 INFO L82 PathProgramCache]: Analyzing trace with hash -344083959, now seen corresponding path program 1 times [2020-10-13 08:56:10,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:10,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1076509027] [2020-10-13 08:56:10,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:11,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:11,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:11,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:11,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:11,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-13 08:56:11,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:56:11,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 924 [2020-10-13 08:56:11,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:11,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:11,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-10-13 08:56:11,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 08:56:11,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:12,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:12,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:12,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:12,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:12,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:12,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:56:12,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:12,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:12,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:12,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:12,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:12,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:12,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:12,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:12,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-13 08:56:12,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:12,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-13 08:56:12,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:12,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:12,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:12,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-13 08:56:12,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:12,256 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:56:12,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1076509027] [2020-10-13 08:56:12,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:12,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:56:12,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284749418] [2020-10-13 08:56:12,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:56:12,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:12,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:56:12,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:56:12,259 INFO L87 Difference]: Start difference. First operand 374 states and 456 transitions. Second operand 5 states. [2020-10-13 08:56:13,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:13,047 INFO L93 Difference]: Finished difference Result 775 states and 948 transitions. [2020-10-13 08:56:13,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:56:13,047 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 164 [2020-10-13 08:56:13,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:13,050 INFO L225 Difference]: With dead ends: 775 [2020-10-13 08:56:13,050 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:56:13,054 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 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 08:56:13,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:56:13,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:56:13,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:56:13,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 454 transitions. [2020-10-13 08:56:13,076 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 454 transitions. Word has length 164 [2020-10-13 08:56:13,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:13,076 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 454 transitions. [2020-10-13 08:56:13,076 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:56:13,076 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 454 transitions. [2020-10-13 08:56:13,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-13 08:56:13,078 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:13,078 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:13,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 08:56:13,079 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:13,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:13,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1513069970, now seen corresponding path program 1 times [2020-10-13 08:56:13,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:13,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [824245857] [2020-10-13 08:56:13,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:13,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:13,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:13,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:13,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:13,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:14,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:14,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-13 08:56:14,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:56:14,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1015 [2020-10-13 08:56:14,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:14,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:14,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 114 [2020-10-13 08:56:14,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 08:56:14,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:14,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:14,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:14,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:14,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:14,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:14,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:14,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:56:14,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:14,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:14,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:14,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:14,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:14,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:14,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:14,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:14,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 08:56:14,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:14,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 08:56:14,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:14,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:14,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:14,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-13 08:56:14,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:14,368 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:56:14,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [824245857] [2020-10-13 08:56:14,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:14,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:56:14,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140912713] [2020-10-13 08:56:14,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:56:14,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:14,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:56:14,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:56:14,371 INFO L87 Difference]: Start difference. First operand 374 states and 454 transitions. Second operand 5 states. [2020-10-13 08:56:15,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:15,186 INFO L93 Difference]: Finished difference Result 774 states and 943 transitions. [2020-10-13 08:56:15,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:56:15,189 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-10-13 08:56:15,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:15,191 INFO L225 Difference]: With dead ends: 774 [2020-10-13 08:56:15,191 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:56:15,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 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 08:56:15,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:56:15,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:56:15,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:56:15,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 452 transitions. [2020-10-13 08:56:15,215 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 452 transitions. Word has length 167 [2020-10-13 08:56:15,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:15,215 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 452 transitions. [2020-10-13 08:56:15,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:56:15,215 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 452 transitions. [2020-10-13 08:56:15,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-13 08:56:15,217 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:15,218 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:15,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 08:56:15,218 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:15,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:15,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1221949615, now seen corresponding path program 1 times [2020-10-13 08:56:15,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:15,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1293881455] [2020-10-13 08:56:15,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:15,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:15,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:16,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:16,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:16,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:56:16,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:56:16,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1638 [2020-10-13 08:56:16,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:16,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:56:16,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-10-13 08:56:16,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 08:56:16,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:17,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:17,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:17,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:17,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:17,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:17,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:56:17,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:17,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:17,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:17,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:17,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:17,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:17,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:17,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:17,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:17,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-13 08:56:17,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:17,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 08:56:17,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:17,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:17,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:17,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-13 08:56:17,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:17,414 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:56:17,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1293881455] [2020-10-13 08:56:17,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:17,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:56:17,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200997951] [2020-10-13 08:56:17,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:56:17,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:17,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:56:17,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:56:17,416 INFO L87 Difference]: Start difference. First operand 374 states and 452 transitions. Second operand 8 states. [2020-10-13 08:56:18,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:18,409 INFO L93 Difference]: Finished difference Result 798 states and 968 transitions. [2020-10-13 08:56:18,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:56:18,411 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 168 [2020-10-13 08:56:18,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:18,413 INFO L225 Difference]: With dead ends: 798 [2020-10-13 08:56:18,413 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:56:18,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:56:18,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:56:18,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:56:18,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:56:18,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 448 transitions. [2020-10-13 08:56:18,434 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 448 transitions. Word has length 168 [2020-10-13 08:56:18,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:18,434 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 448 transitions. [2020-10-13 08:56:18,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:56:18,434 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 448 transitions. [2020-10-13 08:56:18,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-13 08:56:18,436 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:18,436 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:18,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 08:56:18,437 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:18,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:18,437 INFO L82 PathProgramCache]: Analyzing trace with hash 2081313597, now seen corresponding path program 1 times [2020-10-13 08:56:18,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:18,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [191684407] [2020-10-13 08:56:18,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:18,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:18,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:18,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:18,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:19,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:19,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-13 08:56:19,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:56:19,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 941 [2020-10-13 08:56:19,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:19,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:19,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 121 [2020-10-13 08:56:19,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 08:56:19,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:19,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:19,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:19,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:19,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:19,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:19,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:19,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:56:19,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:19,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:19,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:19,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:19,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:19,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:19,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:19,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:19,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-13 08:56:19,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:19,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 08:56:19,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:19,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:19,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:19,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-13 08:56:19,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:19,646 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:56:19,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [191684407] [2020-10-13 08:56:19,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:19,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:56:19,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776558598] [2020-10-13 08:56:19,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:56:19,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:19,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:56:19,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:56:19,649 INFO L87 Difference]: Start difference. First operand 374 states and 448 transitions. Second operand 5 states. [2020-10-13 08:56:20,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:20,427 INFO L93 Difference]: Finished difference Result 780 states and 937 transitions. [2020-10-13 08:56:20,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:56:20,430 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 174 [2020-10-13 08:56:20,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:20,433 INFO L225 Difference]: With dead ends: 780 [2020-10-13 08:56:20,433 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:56:20,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 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 08:56:20,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:56:20,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:56:20,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:56:20,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 446 transitions. [2020-10-13 08:56:20,447 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 446 transitions. Word has length 174 [2020-10-13 08:56:20,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:20,448 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 446 transitions. [2020-10-13 08:56:20,448 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:56:20,448 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 446 transitions. [2020-10-13 08:56:20,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-13 08:56:20,450 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:20,451 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:20,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 08:56:20,451 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:20,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:20,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1533394381, now seen corresponding path program 1 times [2020-10-13 08:56:20,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:20,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1989037848] [2020-10-13 08:56:20,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:20,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:20,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:20,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:20,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-13 08:56:20,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:20,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 403 [2020-10-13 08:56:20,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:20,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:56:20,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:56:20,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-13 08:56:20,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 08:56:20,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:20,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:20,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:20,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:20,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:20,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 08:56:20,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:20,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:20,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:20,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:56:20,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:56:20,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:21,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:21,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:21,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:21,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:56:21,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:21,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-13 08:56:21,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:21,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:21,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:56:21,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 08:56:21,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:21,295 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:56:21,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1989037848] [2020-10-13 08:56:21,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 08:56:21,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 08:56:21,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137959865] [2020-10-13 08:56:21,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:56:21,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:21,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:56:21,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:56:21,298 INFO L87 Difference]: Start difference. First operand 374 states and 446 transitions. Second operand 8 states. [2020-10-13 08:56:22,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:22,727 INFO L93 Difference]: Finished difference Result 950 states and 1154 transitions. [2020-10-13 08:56:22,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:56:22,729 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 182 [2020-10-13 08:56:22,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:22,738 INFO L225 Difference]: With dead ends: 950 [2020-10-13 08:56:22,738 INFO L226 Difference]: Without dead ends: 582 [2020-10-13 08:56:22,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:56:22,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2020-10-13 08:56:22,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 564. [2020-10-13 08:56:22,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2020-10-13 08:56:22,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 634 transitions. [2020-10-13 08:56:22,764 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 634 transitions. Word has length 182 [2020-10-13 08:56:22,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:22,764 INFO L479 AbstractCegarLoop]: Abstraction has 564 states and 634 transitions. [2020-10-13 08:56:22,764 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:56:22,764 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 634 transitions. [2020-10-13 08:56:22,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-13 08:56:22,767 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:22,768 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:22,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 08:56:22,768 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:22,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:22,768 INFO L82 PathProgramCache]: Analyzing trace with hash -944896375, now seen corresponding path program 1 times [2020-10-13 08:56:22,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:22,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [292595874] [2020-10-13 08:56:22,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:22,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:23,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:23,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:24,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:24,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-10-13 08:56:24,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:56:24,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1995 [2020-10-13 08:56:24,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:24,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:24,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-10-13 08:56:24,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 08:56:24,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:24,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:24,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:24,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:24,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:24,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:24,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:24,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:56:24,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:24,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:24,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:24,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:24,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:24,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:24,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:25,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:25,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-13 08:56:25,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:25,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-13 08:56:25,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:25,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:25,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:25,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-13 08:56:25,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:25,211 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:56:25,211 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [292595874] [2020-10-13 08:56:25,211 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:25,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:56:25,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925548948] [2020-10-13 08:56:25,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:56:25,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:25,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:56:25,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:56:25,219 INFO L87 Difference]: Start difference. First operand 564 states and 634 transitions. Second operand 5 states. [2020-10-13 08:56:25,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:25,987 INFO L93 Difference]: Finished difference Result 1141 states and 1291 transitions. [2020-10-13 08:56:25,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:56:25,988 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 228 [2020-10-13 08:56:25,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:25,993 INFO L225 Difference]: With dead ends: 1141 [2020-10-13 08:56:25,993 INFO L226 Difference]: Without dead ends: 570 [2020-10-13 08:56:25,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 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 08:56:25,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-10-13 08:56:26,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 564. [2020-10-13 08:56:26,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2020-10-13 08:56:26,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 631 transitions. [2020-10-13 08:56:26,016 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 631 transitions. Word has length 228 [2020-10-13 08:56:26,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:26,016 INFO L479 AbstractCegarLoop]: Abstraction has 564 states and 631 transitions. [2020-10-13 08:56:26,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:56:26,017 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 631 transitions. [2020-10-13 08:56:26,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-13 08:56:26,019 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:26,020 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:26,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 08:56:26,020 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:26,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:26,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1704696358, now seen corresponding path program 1 times [2020-10-13 08:56:26,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:26,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1819138701] [2020-10-13 08:56:26,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:26,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:26,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:26,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:29,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:29,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-10-13 08:56:29,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:56:29,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3282 [2020-10-13 08:56:29,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:29,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:29,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 182 [2020-10-13 08:56:29,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 08:56:29,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 08:56:29,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:29,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:29,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:29,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:29,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:29,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:29,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:56:29,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:29,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:29,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:29,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:29,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:29,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:29,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:29,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:29,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-13 08:56:29,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:29,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-13 08:56:29,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:29,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:29,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:29,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-13 08:56:29,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:29,702 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:56:29,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1819138701] [2020-10-13 08:56:29,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:29,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 08:56:29,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365658619] [2020-10-13 08:56:29,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 08:56:29,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:29,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 08:56:29,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:56:29,704 INFO L87 Difference]: Start difference. First operand 564 states and 631 transitions. Second operand 6 states. [2020-10-13 08:56:30,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:30,892 INFO L93 Difference]: Finished difference Result 1312 states and 1469 transitions. [2020-10-13 08:56:30,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:56:30,892 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 235 [2020-10-13 08:56:30,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:30,897 INFO L225 Difference]: With dead ends: 1312 [2020-10-13 08:56:30,897 INFO L226 Difference]: Without dead ends: 754 [2020-10-13 08:56:30,899 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:56:30,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2020-10-13 08:56:30,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 748. [2020-10-13 08:56:30,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 748 states. [2020-10-13 08:56:30,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 820 transitions. [2020-10-13 08:56:30,919 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 820 transitions. Word has length 235 [2020-10-13 08:56:30,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:30,920 INFO L479 AbstractCegarLoop]: Abstraction has 748 states and 820 transitions. [2020-10-13 08:56:30,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 08:56:30,920 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 820 transitions. [2020-10-13 08:56:30,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2020-10-13 08:56:30,925 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:30,926 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:56:30,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 08:56:30,926 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:30,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:30,926 INFO L82 PathProgramCache]: Analyzing trace with hash -366566147, now seen corresponding path program 1 times [2020-10-13 08:56:30,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:30,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1340582559] [2020-10-13 08:56:30,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:30,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:31,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:32,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:32,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-10-13 08:56:32,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:56:32,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1357 [2020-10-13 08:56:32,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:32,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:56:32,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:56:32,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-13 08:56:32,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:32,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:32,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:32,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:32,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:32,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:32,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:32,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:56:32,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:32,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:32,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:32,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:56:32,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:32,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:32,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:32,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:32,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:56:32,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:32,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-13 08:56:32,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:32,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:32,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:56:32,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:56:32,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:32,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-13 08:56:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:32,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:32,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:32,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:56:32,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:32,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 08:56:32,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:32,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:32,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-13 08:56:32,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:32,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:32,708 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 112 proven. 107 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 08:56:32,708 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1340582559] [2020-10-13 08:56:32,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:32,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:56:32,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407625961] [2020-10-13 08:56:32,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:56:32,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:32,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:56:32,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:56:32,710 INFO L87 Difference]: Start difference. First operand 748 states and 820 transitions. Second operand 8 states. [2020-10-13 08:56:33,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:33,965 INFO L93 Difference]: Finished difference Result 1504 states and 1660 transitions. [2020-10-13 08:56:33,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:56:33,966 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 294 [2020-10-13 08:56:33,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:33,971 INFO L225 Difference]: With dead ends: 1504 [2020-10-13 08:56:33,971 INFO L226 Difference]: Without dead ends: 762 [2020-10-13 08:56:33,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:56:33,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2020-10-13 08:56:33,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 748. [2020-10-13 08:56:33,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 748 states. [2020-10-13 08:56:34,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 812 transitions. [2020-10-13 08:56:34,000 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 812 transitions. Word has length 294 [2020-10-13 08:56:34,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:34,000 INFO L479 AbstractCegarLoop]: Abstraction has 748 states and 812 transitions. [2020-10-13 08:56:34,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:56:34,001 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 812 transitions. [2020-10-13 08:56:34,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2020-10-13 08:56:34,003 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:34,004 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:56:34,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 08:56:34,004 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:34,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:34,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1162780230, now seen corresponding path program 1 times [2020-10-13 08:56:34,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:34,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1705882415] [2020-10-13 08:56:34,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:34,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:34,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:34,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:37,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:37,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 373 [2020-10-13 08:56:37,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:56:37,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3171 [2020-10-13 08:56:37,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:37,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:37,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-13 08:56:37,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-13 08:56:37,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:37,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:37,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:37,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:37,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:37,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:37,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:37,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:56:37,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:37,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:37,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:37,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:37,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:37,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:37,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:37,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:37,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:56:37,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:37,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-13 08:56:37,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:37,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:37,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:37,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-13 08:56:37,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:56:37,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:56:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:37,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:37,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:37,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:56:37,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:37,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-13 08:56:37,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:37,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:37,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:56:37,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 08:56:37,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:56:38,020 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 228 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 08:56:38,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1705882415] [2020-10-13 08:56:38,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:38,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:56:38,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067611077] [2020-10-13 08:56:38,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:56:38,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:38,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:56:38,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:56:38,024 INFO L87 Difference]: Start difference. First operand 748 states and 812 transitions. Second operand 7 states. [2020-10-13 08:56:39,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:39,608 INFO L93 Difference]: Finished difference Result 1904 states and 2142 transitions. [2020-10-13 08:56:39,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:56:39,608 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 361 [2020-10-13 08:56:39,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:39,614 INFO L225 Difference]: With dead ends: 1904 [2020-10-13 08:56:39,614 INFO L226 Difference]: Without dead ends: 1162 [2020-10-13 08:56:39,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:56:39,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2020-10-13 08:56:39,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1124. [2020-10-13 08:56:39,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1124 states. [2020-10-13 08:56:39,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1212 transitions. [2020-10-13 08:56:39,653 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1212 transitions. Word has length 361 [2020-10-13 08:56:39,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:39,654 INFO L479 AbstractCegarLoop]: Abstraction has 1124 states and 1212 transitions. [2020-10-13 08:56:39,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:56:39,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1212 transitions. [2020-10-13 08:56:39,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2020-10-13 08:56:39,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:39,658 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 08:56:39,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 08:56:39,658 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:39,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:39,659 INFO L82 PathProgramCache]: Analyzing trace with hash 79365806, now seen corresponding path program 1 times [2020-10-13 08:56:39,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:39,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [817497978] [2020-10-13 08:56:39,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:39,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:39,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:39,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:40,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:42,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:43,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:43,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 383 [2020-10-13 08:56:43,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:56:43,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3854 [2020-10-13 08:56:43,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:43,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:43,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 320 [2020-10-13 08:56:43,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 08:56:43,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:43,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:43,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:43,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:43,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:43,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:43,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:56:43,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:43,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:43,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:43,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:43,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:43,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:43,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:43,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:43,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:43,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:56:43,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:43,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:56:43,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:43,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:43,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:43,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:43,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:43,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:56:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:43,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:43,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:43,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 08:56:43,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:43,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 08:56:43,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:43,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:43,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:43,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-13 08:56:43,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:44,092 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 113 proven. 2 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-13 08:56:44,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [817497978] [2020-10-13 08:56:44,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:44,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:56:44,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671438548] [2020-10-13 08:56:44,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:56:44,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:44,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:56:44,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:56:44,094 INFO L87 Difference]: Start difference. First operand 1124 states and 1212 transitions. Second operand 5 states. [2020-10-13 08:56:44,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:44,932 INFO L93 Difference]: Finished difference Result 2264 states and 2451 transitions. [2020-10-13 08:56:44,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:56:44,935 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 371 [2020-10-13 08:56:44,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:44,940 INFO L225 Difference]: With dead ends: 2264 [2020-10-13 08:56:44,940 INFO L226 Difference]: Without dead ends: 1132 [2020-10-13 08:56:44,943 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:56:44,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2020-10-13 08:56:44,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1124. [2020-10-13 08:56:44,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1124 states. [2020-10-13 08:56:44,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1210 transitions. [2020-10-13 08:56:44,969 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1210 transitions. Word has length 371 [2020-10-13 08:56:44,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:44,969 INFO L479 AbstractCegarLoop]: Abstraction has 1124 states and 1210 transitions. [2020-10-13 08:56:44,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:56:44,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1210 transitions. [2020-10-13 08:56:44,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2020-10-13 08:56:44,974 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:44,974 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:56:44,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 08:56:44,974 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:44,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:44,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1548918954, now seen corresponding path program 1 times [2020-10-13 08:56:44,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:44,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [462620285] [2020-10-13 08:56:44,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:45,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:45,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:45,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:45,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:45,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:47,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:47,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 429 [2020-10-13 08:56:47,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:56:47,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2947 [2020-10-13 08:56:47,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:47,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:47,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 366 [2020-10-13 08:56:47,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 08:56:47,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:48,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:48,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:48,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:48,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:48,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:48,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:48,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:56:48,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:48,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:48,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:48,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:48,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:48,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:48,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:48,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:48,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:48,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:56:48,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:48,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:56:48,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:48,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:48,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:48,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:48,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:48,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:56:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:48,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:48,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:48,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-13 08:56:48,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:48,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-13 08:56:48,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:48,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:48,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:48,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-13 08:56:48,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:48,420 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 113 proven. 2 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2020-10-13 08:56:48,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [462620285] [2020-10-13 08:56:48,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:48,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:56:48,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949745928] [2020-10-13 08:56:48,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:56:48,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:48,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:56:48,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:56:48,422 INFO L87 Difference]: Start difference. First operand 1124 states and 1210 transitions. Second operand 5 states. [2020-10-13 08:56:49,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:49,183 INFO L93 Difference]: Finished difference Result 2272 states and 2454 transitions. [2020-10-13 08:56:49,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:56:49,184 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 417 [2020-10-13 08:56:49,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:49,188 INFO L225 Difference]: With dead ends: 2272 [2020-10-13 08:56:49,188 INFO L226 Difference]: Without dead ends: 1130 [2020-10-13 08:56:49,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:56:49,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2020-10-13 08:56:49,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 1122. [2020-10-13 08:56:49,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1122 states. [2020-10-13 08:56:49,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1205 transitions. [2020-10-13 08:56:49,215 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1205 transitions. Word has length 417 [2020-10-13 08:56:49,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:49,215 INFO L479 AbstractCegarLoop]: Abstraction has 1122 states and 1205 transitions. [2020-10-13 08:56:49,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:56:49,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1205 transitions. [2020-10-13 08:56:49,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2020-10-13 08:56:49,219 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:49,220 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:49,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 08:56:49,220 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:49,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:49,221 INFO L82 PathProgramCache]: Analyzing trace with hash 182139701, now seen corresponding path program 1 times [2020-10-13 08:56:49,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:49,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1257792689] [2020-10-13 08:56:49,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:49,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:49,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:49,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:53,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:53,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 454 [2020-10-13 08:56:53,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:56:53,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4369 [2020-10-13 08:56:53,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:53,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:53,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 270 [2020-10-13 08:56:53,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-13 08:56:53,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:53,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:53,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:53,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:53,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:53,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:53,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:53,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:56:53,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:53,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:53,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:53,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:53,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:53,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:53,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:53,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:53,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:53,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:56:53,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:53,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:56:53,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:53,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:53,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:53,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:53,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:53,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:56:53,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:53,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:53,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:53,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:56:53,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:53,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:56:53,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:53,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:53,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:53,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 08:56:53,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:53,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-10-13 08:56:53,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:53,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:53,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:53,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:56:53,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:53,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-13 08:56:53,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:53,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:53,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:56:53,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 08:56:53,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:54,093 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 365 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2020-10-13 08:56:54,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1257792689] [2020-10-13 08:56:54,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:54,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:56:54,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423682897] [2020-10-13 08:56:54,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:56:54,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:54,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:56:54,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:56:54,096 INFO L87 Difference]: Start difference. First operand 1122 states and 1205 transitions. Second operand 7 states. [2020-10-13 08:56:55,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:55,697 INFO L93 Difference]: Finished difference Result 2842 states and 3172 transitions. [2020-10-13 08:56:55,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:56:55,698 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 440 [2020-10-13 08:56:55,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:55,704 INFO L225 Difference]: With dead ends: 2842 [2020-10-13 08:56:55,704 INFO L226 Difference]: Without dead ends: 1726 [2020-10-13 08:56:55,707 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-13 08:56:55,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2020-10-13 08:56:55,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 1500. [2020-10-13 08:56:55,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1500 states. [2020-10-13 08:56:55,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1610 transitions. [2020-10-13 08:56:55,745 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1610 transitions. Word has length 440 [2020-10-13 08:56:55,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:55,746 INFO L479 AbstractCegarLoop]: Abstraction has 1500 states and 1610 transitions. [2020-10-13 08:56:55,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:56:55,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1610 transitions. [2020-10-13 08:56:55,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2020-10-13 08:56:55,752 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:55,752 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:55,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 08:56:55,753 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:55,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:55,753 INFO L82 PathProgramCache]: Analyzing trace with hash -217326854, now seen corresponding path program 1 times [2020-10-13 08:56:55,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:55,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [627747469] [2020-10-13 08:56:55,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:55,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:55,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:56,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:58,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:00,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:00,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 479 [2020-10-13 08:57:00,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:57:00,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4515 [2020-10-13 08:57:00,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:00,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:57:00,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 416 [2020-10-13 08:57:00,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 08:57:00,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:00,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:57:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:00,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:00,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:00,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:57:00,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:00,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:57:00,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:00,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:00,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:00,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:00,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:00,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:57:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:00,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:00,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:00,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:57:00,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:00,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:57:00,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:00,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:00,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:00,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:00,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:00,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:57:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:00,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:00,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:00,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:57:00,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:00,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:57:00,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:00,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:00,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:00,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:00,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:00,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-10-13 08:57:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:00,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:00,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:00,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 08:57:00,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:00,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-13 08:57:00,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:00,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:57:00,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:00,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-13 08:57:00,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:00,722 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 171 proven. 3 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2020-10-13 08:57:00,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [627747469] [2020-10-13 08:57:00,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:57:00,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:57:00,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501945201] [2020-10-13 08:57:00,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:57:00,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:57:00,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:57:00,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:57:00,724 INFO L87 Difference]: Start difference. First operand 1500 states and 1610 transitions. Second operand 5 states. [2020-10-13 08:57:01,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:57:01,460 INFO L93 Difference]: Finished difference Result 3010 states and 3245 transitions. [2020-10-13 08:57:01,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:57:01,466 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 465 [2020-10-13 08:57:01,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:57:01,472 INFO L225 Difference]: With dead ends: 3010 [2020-10-13 08:57:01,472 INFO L226 Difference]: Without dead ends: 1508 [2020-10-13 08:57:01,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 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 08:57:01,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2020-10-13 08:57:01,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1500. [2020-10-13 08:57:01,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1500 states. [2020-10-13 08:57:01,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1608 transitions. [2020-10-13 08:57:01,516 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1608 transitions. Word has length 465 [2020-10-13 08:57:01,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:57:01,517 INFO L479 AbstractCegarLoop]: Abstraction has 1500 states and 1608 transitions. [2020-10-13 08:57:01,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:57:01,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1608 transitions. [2020-10-13 08:57:01,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2020-10-13 08:57:01,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:57:01,523 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:57:01,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 08:57:01,523 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:57:01,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:57:01,523 INFO L82 PathProgramCache]: Analyzing trace with hash 67782005, now seen corresponding path program 1 times [2020-10-13 08:57:01,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:57:01,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1031810293] [2020-10-13 08:57:01,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:57:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:01,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:01,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:02,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:04,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:04,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:06,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:06,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 486 [2020-10-13 08:57:06,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:57:06,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-13 08:57:06,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:06,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:57:06,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 423 [2020-10-13 08:57:06,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 08:57:06,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:06,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:57:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:06,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:06,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:06,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:57:06,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:06,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:57:06,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:06,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:06,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:06,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:06,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:06,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:57:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:06,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:06,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:06,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:57:06,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:06,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 08:57:06,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:06,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:06,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:06,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:06,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:06,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:57:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:06,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:06,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:06,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:57:06,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:06,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:57:06,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:06,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:06,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-10-13 08:57:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:06,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:06,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:06,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:57:06,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:06,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 08:57:06,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:06,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:57:06,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:06,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-13 08:57:06,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:07,096 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 171 proven. 3 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-13 08:57:07,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1031810293] [2020-10-13 08:57:07,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:57:07,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:57:07,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032698220] [2020-10-13 08:57:07,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:57:07,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:57:07,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:57:07,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:57:07,099 INFO L87 Difference]: Start difference. First operand 1500 states and 1608 transitions. Second operand 5 states. [2020-10-13 08:57:07,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:57:07,778 INFO L93 Difference]: Finished difference Result 3010 states and 3240 transitions. [2020-10-13 08:57:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:57:07,784 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 472 [2020-10-13 08:57:07,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:57:07,789 INFO L225 Difference]: With dead ends: 3010 [2020-10-13 08:57:07,789 INFO L226 Difference]: Without dead ends: 1506 [2020-10-13 08:57:07,792 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:57:07,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2020-10-13 08:57:07,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1498. [2020-10-13 08:57:07,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1498 states. [2020-10-13 08:57:07,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 1603 transitions. [2020-10-13 08:57:07,823 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 1603 transitions. Word has length 472 [2020-10-13 08:57:07,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:57:07,824 INFO L479 AbstractCegarLoop]: Abstraction has 1498 states and 1603 transitions. [2020-10-13 08:57:07,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:57:07,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 1603 transitions. [2020-10-13 08:57:07,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2020-10-13 08:57:07,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:57:07,830 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:57:07,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 08:57:07,831 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:57:07,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:57:07,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1406100990, now seen corresponding path program 1 times [2020-10-13 08:57:07,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:57:07,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [971414760] [2020-10-13 08:57:07,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:57:07,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:07,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:07,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:08,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:12,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:12,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 493 [2020-10-13 08:57:12,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:57:12,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4244 [2020-10-13 08:57:12,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:12,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:57:12,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 309 [2020-10-13 08:57:12,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-13 08:57:12,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:12,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:57:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:12,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:12,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:12,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:57:12,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:12,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:57:12,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:12,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:12,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:12,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:12,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:12,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:57:12,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:12,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:12,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:12,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:57:12,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:12,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 08:57:12,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:12,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:12,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:12,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:12,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:12,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:57:12,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:12,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:12,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:12,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:57:12,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:12,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 08:57:12,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:12,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:57:12,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:12,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:57:12,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:12,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2020-10-13 08:57:12,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:12,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:12,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:12,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:57:12,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:12,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-13 08:57:12,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:12,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:57:12,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:57:12,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 08:57:12,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:12,711 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 404 proven. 2 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2020-10-13 08:57:12,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [971414760] [2020-10-13 08:57:12,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:57:12,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:57:12,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385589056] [2020-10-13 08:57:12,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:57:12,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:57:12,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:57:12,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:57:12,713 INFO L87 Difference]: Start difference. First operand 1498 states and 1603 transitions. Second operand 7 states. [2020-10-13 08:57:14,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:57:14,032 INFO L93 Difference]: Finished difference Result 3450 states and 3970 transitions. [2020-10-13 08:57:14,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:57:14,033 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 479 [2020-10-13 08:57:14,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:57:14,042 INFO L225 Difference]: With dead ends: 3450 [2020-10-13 08:57:14,042 INFO L226 Difference]: Without dead ends: 1958 [2020-10-13 08:57:14,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:57:14,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1958 states. [2020-10-13 08:57:14,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1958 to 1872. [2020-10-13 08:57:14,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1872 states. [2020-10-13 08:57:14,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1872 states to 1872 states and 2006 transitions. [2020-10-13 08:57:14,098 INFO L78 Accepts]: Start accepts. Automaton has 1872 states and 2006 transitions. Word has length 479 [2020-10-13 08:57:14,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:57:14,099 INFO L479 AbstractCegarLoop]: Abstraction has 1872 states and 2006 transitions. [2020-10-13 08:57:14,099 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:57:14,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1872 states and 2006 transitions. [2020-10-13 08:57:14,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 598 [2020-10-13 08:57:14,106 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:57:14,106 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-13 08:57:14,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 08:57:14,107 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:57:14,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:57:14,107 INFO L82 PathProgramCache]: Analyzing trace with hash -2004266130, now seen corresponding path program 1 times [2020-10-13 08:57:14,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:57:14,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [950225310] [2020-10-13 08:57:14,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:57:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:14,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:14,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:14,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:18,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:18,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:19,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:19,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 613 [2020-10-13 08:57:19,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:57:19,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-13 08:57:19,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:57:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:57:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-13 08:57:19,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:19,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:57:19,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:19,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:19,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:19,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:57:19,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:19,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:57:19,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:19,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:57:19,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:19,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:57:19,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:19,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:57:19,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:19,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:19,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:19,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:57:19,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:19,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-13 08:57:19,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:19,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:57:19,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:57:19,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-13 08:57:19,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:19,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-13 08:57:19,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:19,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:19,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:19,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:57:19,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:19,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-13 08:57:19,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:19,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:19,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 08:57:19,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:19,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:19,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2020-10-13 08:57:19,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:19,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:19,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:19,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-13 08:57:19,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:19,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-13 08:57:19,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:19,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:19,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-13 08:57:19,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:19,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:19,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2020-10-13 08:57:19,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:19,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:19,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:19,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:57:19,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:19,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 08:57:19,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:19,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:19,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-13 08:57:19,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:19,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:20,105 INFO L134 CoverageAnalysis]: Checked inductivity of 916 backedges. 224 proven. 312 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-10-13 08:57:20,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [950225310] [2020-10-13 08:57:20,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:57:20,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:57:20,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786046070] [2020-10-13 08:57:20,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:57:20,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:57:20,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:57:20,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:57:20,109 INFO L87 Difference]: Start difference. First operand 1872 states and 2006 transitions. Second operand 7 states. [2020-10-13 08:57:21,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:57:21,321 INFO L93 Difference]: Finished difference Result 4478 states and 4846 transitions. [2020-10-13 08:57:21,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 08:57:21,322 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 597 [2020-10-13 08:57:21,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:57:21,329 INFO L225 Difference]: With dead ends: 4478 [2020-10-13 08:57:21,330 INFO L226 Difference]: Without dead ends: 2612 [2020-10-13 08:57:21,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 1 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 08:57:21,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2612 states. [2020-10-13 08:57:21,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2612 to 2606. [2020-10-13 08:57:21,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2606 states. [2020-10-13 08:57:21,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2606 states to 2606 states and 2774 transitions. [2020-10-13 08:57:21,386 INFO L78 Accepts]: Start accepts. Automaton has 2606 states and 2774 transitions. Word has length 597 [2020-10-13 08:57:21,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:57:21,387 INFO L479 AbstractCegarLoop]: Abstraction has 2606 states and 2774 transitions. [2020-10-13 08:57:21,387 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:57:21,387 INFO L276 IsEmpty]: Start isEmpty. Operand 2606 states and 2774 transitions. [2020-10-13 08:57:21,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2020-10-13 08:57:21,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:57:21,398 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:57:21,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-13 08:57:21,398 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:57:21,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:57:21,399 INFO L82 PathProgramCache]: Analyzing trace with hash 370330026, now seen corresponding path program 1 times [2020-10-13 08:57:21,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:57:21,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237773081] [2020-10-13 08:57:21,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:57:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:21,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:21,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:21,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:23,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:26,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:26,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 749 [2020-10-13 08:57:26,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:57:26,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-13 08:57:26,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:26,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:57:26,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-10-13 08:57:26,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-13 08:57:26,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:26,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:57:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:26,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:26,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:26,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:57:26,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:26,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:57:26,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:26,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:26,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:26,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:26,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:26,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:57:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:26,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:26,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:26,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:57:26,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:26,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 08:57:26,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:26,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:57:26,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:26,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-13 08:57:26,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:26,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:57:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:26,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:26,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:26,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-13 08:57:26,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:26,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 08:57:26,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:26,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:57:26,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:57:26,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-13 08:57:26,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:26,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2020-10-13 08:57:26,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:26,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:26,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:26,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:57:26,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:26,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 08:57:26,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:26,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:26,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 08:57:26,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:26,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:27,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2020-10-13 08:57:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:27,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:27,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:27,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-13 08:57:27,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:27,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 08:57:27,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:27,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:27,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-13 08:57:27,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:27,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:27,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 557 [2020-10-13 08:57:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:27,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:27,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:27,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:57:27,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:27,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 08:57:27,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:27,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:27,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-13 08:57:27,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:27,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:27,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1464 backedges. 399 proven. 372 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2020-10-13 08:57:27,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1237773081] [2020-10-13 08:57:27,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:57:27,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:57:27,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086047682] [2020-10-13 08:57:27,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:57:27,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:57:27,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:57:27,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:57:27,524 INFO L87 Difference]: Start difference. First operand 2606 states and 2774 transitions. Second operand 8 states. [2020-10-13 08:57:29,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:57:29,445 INFO L93 Difference]: Finished difference Result 5026 states and 5360 transitions. [2020-10-13 08:57:29,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:57:29,447 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 731 [2020-10-13 08:57:29,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:57:29,456 INFO L225 Difference]: With dead ends: 5026 [2020-10-13 08:57:29,456 INFO L226 Difference]: Without dead ends: 2608 [2020-10-13 08:57:29,461 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:57:29,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2608 states. [2020-10-13 08:57:29,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2608 to 2606. [2020-10-13 08:57:29,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2606 states. [2020-10-13 08:57:29,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2606 states to 2606 states and 2758 transitions. [2020-10-13 08:57:29,516 INFO L78 Accepts]: Start accepts. Automaton has 2606 states and 2758 transitions. Word has length 731 [2020-10-13 08:57:29,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:57:29,517 INFO L479 AbstractCegarLoop]: Abstraction has 2606 states and 2758 transitions. [2020-10-13 08:57:29,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:57:29,517 INFO L276 IsEmpty]: Start isEmpty. Operand 2606 states and 2758 transitions. [2020-10-13 08:57:29,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 825 [2020-10-13 08:57:29,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:57:29,529 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:57:29,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-13 08:57:29,530 INFO L427 AbstractCegarLoop]: === Iteration 30 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:57:29,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:57:29,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1195971193, now seen corresponding path program 1 times [2020-10-13 08:57:29,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:57:29,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1848135405] [2020-10-13 08:57:29,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:57:29,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:29,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:30,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:30,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:32,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:33,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:34,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:34,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 844 [2020-10-13 08:57:34,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:57:34,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-13 08:57:34,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:34,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:57:34,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 660 [2020-10-13 08:57:34,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-13 08:57:34,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:34,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:57:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:34,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:34,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:34,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:57:34,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:34,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:57:34,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:34,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:34,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:34,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:34,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:34,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:57:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:34,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:34,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:34,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:57:34,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:34,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 08:57:34,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:34,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:34,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:34,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:34,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:34,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:57:34,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:34,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:34,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:34,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:57:34,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:34,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:57:34,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:34,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:34,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:34,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:34,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:34,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:57:34,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:34,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:35,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:35,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:57:35,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:35,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:57:35,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:35,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:35,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:35,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:35,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:35,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:57:35,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:35,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:35,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:35,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:57:35,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:35,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 08:57:35,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:35,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:35,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:35,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:35,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:35,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2020-10-13 08:57:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:35,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:35,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:35,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-13 08:57:35,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:35,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 08:57:35,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:35,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:57:35,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:35,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-13 08:57:35,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:35,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 650 [2020-10-13 08:57:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:35,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:35,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:35,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:57:35,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:35,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-13 08:57:35,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:35,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 08:57:35,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:57:35,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 08:57:35,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:35,730 INFO L134 CoverageAnalysis]: Checked inductivity of 2037 backedges. 891 proven. 26 refuted. 0 times theorem prover too weak. 1120 trivial. 0 not checked. [2020-10-13 08:57:35,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1848135405] [2020-10-13 08:57:35,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:57:35,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:57:35,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058063423] [2020-10-13 08:57:35,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:57:35,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:57:35,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:57:35,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:57:35,732 INFO L87 Difference]: Start difference. First operand 2606 states and 2758 transitions. Second operand 8 states. [2020-10-13 08:57:37,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:57:37,610 INFO L93 Difference]: Finished difference Result 5609 states and 6007 transitions. [2020-10-13 08:57:37,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 08:57:37,611 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 824 [2020-10-13 08:57:37,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:57:37,620 INFO L225 Difference]: With dead ends: 5609 [2020-10-13 08:57:37,620 INFO L226 Difference]: Without dead ends: 3170 [2020-10-13 08:57:37,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:57:37,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3170 states. [2020-10-13 08:57:37,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3170 to 3158. [2020-10-13 08:57:37,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3158 states. [2020-10-13 08:57:37,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3158 states to 3158 states and 3352 transitions. [2020-10-13 08:57:37,686 INFO L78 Accepts]: Start accepts. Automaton has 3158 states and 3352 transitions. Word has length 824 [2020-10-13 08:57:37,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:57:37,687 INFO L479 AbstractCegarLoop]: Abstraction has 3158 states and 3352 transitions. [2020-10-13 08:57:37,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:57:37,687 INFO L276 IsEmpty]: Start isEmpty. Operand 3158 states and 3352 transitions. [2020-10-13 08:57:37,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 880 [2020-10-13 08:57:37,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:57:37,701 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:57:37,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-13 08:57:37,702 INFO L427 AbstractCegarLoop]: === Iteration 31 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:57:37,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:57:37,702 INFO L82 PathProgramCache]: Analyzing trace with hash 223925338, now seen corresponding path program 1 times [2020-10-13 08:57:37,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:57:37,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2121115632] [2020-10-13 08:57:37,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:57:37,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:38,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:38,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:38,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:40,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:41,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:43,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:43,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 899 [2020-10-13 08:57:43,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:57:43,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5122 [2020-10-13 08:57:43,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:43,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:57:43,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 715 [2020-10-13 08:57:43,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-13 08:57:43,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:43,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:57:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:43,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:43,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:43,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:57:43,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:43,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:57:43,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:43,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:43,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:43,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:43,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:57:43,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:57:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:43,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:43,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:43,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:57:43,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:43,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 08:57:43,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:43,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:43,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:43,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:43,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:57:43,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:57:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:43,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:43,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:43,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:57:43,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:43,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 08:57:43,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:43,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:43,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:43,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:43,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:57:43,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:57:43,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:43,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:43,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:43,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:57:43,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:43,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 08:57:43,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:43,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:43,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:43,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:43,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:57:43,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:57:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:43,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:43,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:43,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:57:43,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:43,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 08:57:43,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:43,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:43,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:43,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:43,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:57:43,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2020-10-13 08:57:43,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:43,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:43,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:43,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:57:43,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:43,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-13 08:57:43,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:43,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:57:43,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:43,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-10-13 08:57:43,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:57:43,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 705 [2020-10-13 08:57:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:43,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:44,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:44,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:57:44,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:44,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-13 08:57:44,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:44,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:57:44,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:57:44,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 08:57:44,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:57:45,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2089 backedges. 915 proven. 2 refuted. 0 times theorem prover too weak. 1172 trivial. 0 not checked. [2020-10-13 08:57:45,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2121115632] [2020-10-13 08:57:45,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:57:45,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:57:45,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40167826] [2020-10-13 08:57:45,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:57:45,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:57:45,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:57:45,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:57:45,138 INFO L87 Difference]: Start difference. First operand 3158 states and 3352 transitions. Second operand 7 states. [2020-10-13 08:57:46,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:57:46,724 INFO L93 Difference]: Finished difference Result 6322 states and 6735 transitions. [2020-10-13 08:57:46,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:57:46,725 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 879 [2020-10-13 08:57:46,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:57:46,739 INFO L225 Difference]: With dead ends: 6322 [2020-10-13 08:57:46,739 INFO L226 Difference]: Without dead ends: 3352 [2020-10-13 08:57:46,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:57:46,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3352 states. [2020-10-13 08:57:46,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3352 to 3340. [2020-10-13 08:57:46,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3340 states. [2020-10-13 08:57:46,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3340 states to 3340 states and 3498 transitions. [2020-10-13 08:57:46,811 INFO L78 Accepts]: Start accepts. Automaton has 3340 states and 3498 transitions. Word has length 879 [2020-10-13 08:57:46,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:57:46,812 INFO L479 AbstractCegarLoop]: Abstraction has 3340 states and 3498 transitions. [2020-10-13 08:57:46,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:57:46,812 INFO L276 IsEmpty]: Start isEmpty. Operand 3340 states and 3498 transitions. [2020-10-13 08:57:46,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 914 [2020-10-13 08:57:46,826 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:57:46,827 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:57:46,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-13 08:57:46,828 INFO L427 AbstractCegarLoop]: === Iteration 32 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:57:46,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:57:46,828 INFO L82 PathProgramCache]: Analyzing trace with hash -660964866, now seen corresponding path program 1 times [2020-10-13 08:57:46,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:57:46,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [974178729] [2020-10-13 08:57:46,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:57:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:47,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:47,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:48,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:51,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:52,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:52,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 933 [2020-10-13 08:57:52,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:57:52,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-13 08:57:52,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:52,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:57:52,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 870 [2020-10-13 08:57:52,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 08:57:52,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:52,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:57:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:52,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:52,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:52,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:57:52,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:52,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:57:52,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:52,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:52,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:52,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:52,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:52,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:57:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:52,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:52,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:52,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:57:52,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:52,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 08:57:52,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:52,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:52,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:52,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:52,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:52,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:57:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:52,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:52,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:52,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:57:52,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:52,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:57:52,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:52,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:52,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:52,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:52,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:52,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:57:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:52,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:52,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:52,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:57:52,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:52,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:57:52,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:52,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:52,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:52,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:52,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:52,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:57:52,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:52,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:52,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:52,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:57:52,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:52,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 08:57:52,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:52,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:52,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:52,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:52,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:52,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2020-10-13 08:57:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:52,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:52,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:52,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:57:52,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:52,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:57:52,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:52,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:52,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:52,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:52,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:52,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 705 [2020-10-13 08:57:52,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:52,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:52,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:52,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:57:52,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:52,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-13 08:57:52,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:52,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:57:52,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:52,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-13 08:57:52,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:52,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2157 backedges. 345 proven. 6 refuted. 0 times theorem prover too weak. 1806 trivial. 0 not checked. [2020-10-13 08:57:52,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [974178729] [2020-10-13 08:57:52,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:57:52,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:57:52,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063867627] [2020-10-13 08:57:52,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:57:52,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:57:52,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:57:52,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:57:52,943 INFO L87 Difference]: Start difference. First operand 3340 states and 3498 transitions. Second operand 5 states. [2020-10-13 08:57:54,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:57:54,006 INFO L93 Difference]: Finished difference Result 6678 states and 6996 transitions. [2020-10-13 08:57:54,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:57:54,007 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 913 [2020-10-13 08:57:54,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:57:54,016 INFO L225 Difference]: With dead ends: 6678 [2020-10-13 08:57:54,016 INFO L226 Difference]: Without dead ends: 3158 [2020-10-13 08:57:54,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 2 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 08:57:54,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3158 states. [2020-10-13 08:57:54,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3158 to 3156. [2020-10-13 08:57:54,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3156 states. [2020-10-13 08:57:54,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3156 states to 3156 states and 3304 transitions. [2020-10-13 08:57:54,075 INFO L78 Accepts]: Start accepts. Automaton has 3156 states and 3304 transitions. Word has length 913 [2020-10-13 08:57:54,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:57:54,076 INFO L479 AbstractCegarLoop]: Abstraction has 3156 states and 3304 transitions. [2020-10-13 08:57:54,076 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:57:54,076 INFO L276 IsEmpty]: Start isEmpty. Operand 3156 states and 3304 transitions. [2020-10-13 08:57:54,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 939 [2020-10-13 08:57:54,092 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:57:54,093 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 08:57:54,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-13 08:57:54,094 INFO L427 AbstractCegarLoop]: === Iteration 33 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:57:54,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:57:54,094 INFO L82 PathProgramCache]: Analyzing trace with hash -547284775, now seen corresponding path program 1 times [2020-10-13 08:57:54,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:57:54,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1670950811] [2020-10-13 08:57:54,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:57:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:54,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:54,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:55,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:57,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:58,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:59,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:59,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 958 [2020-10-13 08:57:59,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:57:59,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-13 08:57:59,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:59,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:57:59,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 895 [2020-10-13 08:57:59,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-13 08:57:59,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:59,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:57:59,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:59,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:59,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:59,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:57:59,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:59,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:57:59,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:59,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:59,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:59,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:59,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:59,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:57:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:59,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:59,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:59,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:57:59,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:59,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:57:59,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:59,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:59,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:59,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:59,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:59,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:57:59,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:59,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:59,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:59,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:57:59,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:59,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:57:59,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:59,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:59,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:59,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:59,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:59,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:57:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:59,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:59,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:59,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:57:59,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:59,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:57:59,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:59,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:59,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:59,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:59,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:59,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:57:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:59,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:59,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:59,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:57:59,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:59,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:57:59,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:59,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:59,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:59,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:59,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:59,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2020-10-13 08:57:59,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:59,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:59,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:59,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:57:59,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:59,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 08:57:59,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:59,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:59,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:59,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:59,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:59,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 705 [2020-10-13 08:57:59,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:59,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:59,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:59,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-13 08:57:59,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:59,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-13 08:57:59,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:59,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:57:59,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:59,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-13 08:57:59,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:00,268 INFO L134 CoverageAnalysis]: Checked inductivity of 2207 backedges. 345 proven. 6 refuted. 0 times theorem prover too weak. 1856 trivial. 0 not checked. [2020-10-13 08:58:00,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1670950811] [2020-10-13 08:58:00,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:58:00,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:58:00,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980972031] [2020-10-13 08:58:00,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:58:00,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:58:00,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:58:00,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:58:00,270 INFO L87 Difference]: Start difference. First operand 3156 states and 3304 transitions. Second operand 5 states. [2020-10-13 08:58:01,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:58:01,032 INFO L93 Difference]: Finished difference Result 5969 states and 6253 transitions. [2020-10-13 08:58:01,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:58:01,033 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 938 [2020-10-13 08:58:01,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:58:01,034 INFO L225 Difference]: With dead ends: 5969 [2020-10-13 08:58:01,034 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 08:58:01,044 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 2 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 08:58:01,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 08:58:01,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 08:58:01,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 08:58:01,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 08:58:01,046 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 938 [2020-10-13 08:58:01,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:58:01,046 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 08:58:01,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:58:01,047 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 08:58:01,047 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 08:58:01,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-13 08:58:01,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 08:58:02,696 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 305 DAG size of output: 229 [2020-10-13 08:58:03,741 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 305 DAG size of output: 229 [2020-10-13 08:58:07,065 WARN L193 SmtUtils]: Spent 3.23 s on a formula simplification. DAG size of input: 321 DAG size of output: 208 [2020-10-13 08:58:08,981 WARN L193 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 231 DAG size of output: 131 [2020-10-13 08:58:10,839 WARN L193 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 231 DAG size of output: 131 [2020-10-13 08:58:10,846 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 08:58:10,846 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a21~0 |old(~a21~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a15~0 |old(~a15~0)|)) [2020-10-13 08:58:10,846 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 08:58:10,847 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-10-13 08:58:10,847 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-10-13 08:58:10,847 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,847 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,847 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,847 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-10-13 08:58:10,847 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-10-13 08:58:10,847 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-10-13 08:58:10,848 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-10-13 08:58:10,848 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-10-13 08:58:10,848 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-10-13 08:58:10,848 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-10-13 08:58:10,848 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-10-13 08:58:10,848 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,848 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,848 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,849 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-10-13 08:58:10,849 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-10-13 08:58:10,849 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-10-13 08:58:10,849 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-10-13 08:58:10,849 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-10-13 08:58:10,849 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-10-13 08:58:10,849 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-10-13 08:58:10,849 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-10-13 08:58:10,849 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,852 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,852 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,852 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-10-13 08:58:10,852 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-10-13 08:58:10,852 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-10-13 08:58:10,852 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-10-13 08:58:10,852 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-10-13 08:58:10,852 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-10-13 08:58:10,852 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-10-13 08:58:10,853 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-10-13 08:58:10,853 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-10-13 08:58:10,853 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,855 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,856 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,856 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-10-13 08:58:10,856 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-10-13 08:58:10,856 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-10-13 08:58:10,856 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-10-13 08:58:10,856 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-10-13 08:58:10,856 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-10-13 08:58:10,856 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-10-13 08:58:10,856 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,857 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,857 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,857 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-10-13 08:58:10,857 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-10-13 08:58:10,857 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-10-13 08:58:10,857 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-10-13 08:58:10,857 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-10-13 08:58:10,857 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-10-13 08:58:10,857 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-10-13 08:58:10,857 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-10-13 08:58:10,858 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-10-13 08:58:10,858 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,858 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,858 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,858 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,859 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-10-13 08:58:10,859 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-10-13 08:58:10,859 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-10-13 08:58:10,859 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-10-13 08:58:10,859 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-10-13 08:58:10,859 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-10-13 08:58:10,859 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-10-13 08:58:10,859 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-10-13 08:58:10,859 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,859 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,860 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,860 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-10-13 08:58:10,860 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-10-13 08:58:10,860 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-10-13 08:58:10,861 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-10-13 08:58:10,861 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-10-13 08:58:10,862 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-10-13 08:58:10,862 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-10-13 08:58:10,862 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-10-13 08:58:10,862 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,862 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,862 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,862 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-10-13 08:58:10,862 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-10-13 08:58:10,862 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-10-13 08:58:10,862 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-10-13 08:58:10,863 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-10-13 08:58:10,863 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-10-13 08:58:10,863 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse20 (= 7 ~a15~0)) (.cse23 (= ~a21~0 6)) (.cse41 (<= 6 ~a15~0)) (.cse44 (<= ~a15~0 6)) (.cse21 (= ~a24~0 1)) (.cse12 (= ~a15~0 |old(~a15~0)|)) (.cse37 (<= ~a15~0 5)) (.cse9 (= ~a24~0 |old(~a24~0)|)) (.cse17 (= ~a21~0 |old(~a21~0)|)) (.cse10 (= ~a12~0 |old(~a12~0)|)) (.cse38 (<= 5 ~a15~0))) (let ((.cse7 (not (<= |old(~a12~0)| 11))) (.cse32 (not (<= 81 |old(~a12~0)|))) (.cse3 (not (<= |old(~a21~0)| 9))) (.cse6 (not (<= 9 |old(~a21~0)|))) (.cse34 (and .cse37 .cse9 .cse17 .cse10 .cse38)) (.cse35 (not (<= 5 |old(~a15~0)|))) (.cse36 (not (<= |old(~a15~0)| 5))) (.cse26 (and .cse17 .cse21 .cse10 .cse12)) (.cse25 (not (<= |old(~a15~0)| 7))) (.cse39 (not (<= 6 |old(~a21~0)|))) (.cse40 (not (<= |old(~a21~0)| 6))) (.cse28 (not (<= 7 |old(~a15~0)|))) (.cse42 (<= 6 ~a21~0)) (.cse43 (<= ~a21~0 6)) (.cse14 (not (= 10 |old(~a21~0)|))) (.cse29 (not (<= 8 |old(~a21~0)|))) (.cse0 (not (<= 1 |old(~a24~0)|))) (.cse1 (not (<= |old(~a24~0)| 1))) (.cse2 (not (<= |old(~a15~0)| 6))) (.cse4 (not (<= 6 |old(~a15~0)|))) (.cse5 (and .cse41 .cse9 .cse17 .cse10 .cse44)) (.cse27 (not (<= 12 |old(~a12~0)|))) (.cse33 (not (<= |old(~a12~0)| 80))) (.cse30 (not (<= |old(~a21~0)| 8))) (.cse8 (not (= 7 |old(~a21~0)|))) (.cse16 (= 5 ~a15~0)) (.cse11 (= 7 ~a21~0)) (.cse18 (not (= 5 |old(~a15~0)|))) (.cse15 (and .cse9 .cse17 .cse10 .cse12)) (.cse13 (not (<= 8 |old(~a15~0)|))) (.cse45 (not (= 6 |old(~a15~0)|))) (.cse31 (and .cse20 .cse23 .cse21 .cse10)) (.cse19 (not (= |old(~a24~0)| 1))) (.cse46 (not (<= |old(~a12~0)| 10))) (.cse47 (not (<= 0 (+ |old(~a12~0)| 41)))) (.cse24 (not (= 6 |old(~a21~0)|))) (.cse22 (not (= 7 |old(~a15~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (not (<= 0 (+ |old(~a12~0)| 42)))) (or .cse8 (and .cse9 .cse10 .cse11 .cse12) .cse13) (or .cse14 .cse15 .cse13 .cse7) (or (not (<= 2 |old(~a24~0)|)) (and .cse16 .cse9 .cse17 .cse10) (not (<= (+ |old(~a12~0)| 43) 0)) .cse18) (or .cse0 .cse1 .cse2 .cse3 (not (<= (+ |old(~a12~0)| 45) 0)) .cse4 .cse5 .cse6) (or .cse8 (not (<= (+ |old(~a12~0)| 460226) 0)) .cse19 (and .cse20 .cse21 .cse10 .cse11) .cse22) (or (and .cse16 .cse23 .cse21 .cse10) .cse19 .cse24 .cse18) (or .cse25 .cse19 .cse3 .cse26 .cse6 .cse27 .cse28) (or .cse29 .cse15 .cse13 .cse30) (or .cse31 .cse19 .cse32 .cse24 .cse22) (or .cse29 .cse0 .cse1 .cse27 .cse33 .cse34 .cse30 .cse35 .cse36) (or .cse19 .cse13 (not (<= |old(~a15~0)| 8)) (and (<= 8 ~a15~0) .cse17 .cse21 (<= ~a15~0 8) .cse10)) (or .cse19 (not (<= (+ |old(~a12~0)| 1) 0)) (not (<= 10 |old(~a21~0)|)) (and .cse37 .cse21 (<= 10 ~a21~0) .cse10 (<= ~a21~0 10) .cse38) (not (<= |old(~a21~0)| 10)) (not (<= 0 (+ |old(~a12~0)| 7))) .cse35 .cse36) (or .cse19 .cse32 .cse26 .cse6) (or .cse0 (not (<= |old(~a12~0)| 46)) .cse1 .cse2 .cse4 (not (<= 13 |old(~a12~0)|)) .cse39 .cse40 (and .cse41 .cse9 .cse42 .cse10 .cse43 .cse44)) (or .cse32 .cse15 .cse13 .cse6) (or .cse14 .cse19 (and .cse20 .cse17 .cse21 .cse10) .cse22) (or (not (<= |old(~a12~0)| 78)) .cse19 .cse27 (not (= 9 |old(~a21~0)|)) (and .cse16 .cse21 (= ~a21~0 9) .cse10) .cse18) (or .cse0 (not (<= (+ |old(~a12~0)| 7499) 0)) .cse3 .cse6 .cse34 .cse35 .cse36) (or .cse29 .cse0 .cse1 .cse15 .cse30 .cse28) (or .cse14 .cse45 .cse19 .cse26 .cse46 .cse47) (or .cse25 .cse0 .cse1 .cse39 .cse40 .cse28 (and .cse9 .cse42 .cse10 .cse43 .cse12) (not (<= (+ |old(~a12~0)| 2797) 0))) (or .cse14 .cse19 (and .cse16 .cse17 .cse21 .cse10) .cse27 .cse18) (or .cse29 .cse0 .cse1 .cse2 .cse4 .cse5 .cse27 .cse33 .cse30) (or .cse8 .cse19 (and .cse16 .cse21 .cse10 .cse11) .cse18) (or (not (<= |old(~a12~0)| 95442)) .cse15 (not (<= 95374 |old(~a12~0)|)) .cse13) (or .cse45 .cse19 (not (<= 12849 |old(~a12~0)|)) (and .cse21 .cse10 (= ~a21~0 ~a15~0) .cse12) (not (= |old(~a15~0)| |old(~a21~0)|))) (or .cse31 .cse19 .cse46 .cse47 .cse24 .cse22)))) [2020-10-13 08:58:10,864 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-10-13 08:58:10,864 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-10-13 08:58:10,864 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,864 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,864 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,864 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-10-13 08:58:10,864 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-10-13 08:58:10,864 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-10-13 08:58:10,864 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-10-13 08:58:10,865 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-10-13 08:58:10,865 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-10-13 08:58:10,865 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-10-13 08:58:10,866 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-10-13 08:58:10,866 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,866 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,866 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,866 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-10-13 08:58:10,866 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-10-13 08:58:10,866 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-10-13 08:58:10,866 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-10-13 08:58:10,866 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-10-13 08:58:10,867 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-10-13 08:58:10,867 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-10-13 08:58:10,867 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-10-13 08:58:10,867 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,867 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,867 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,867 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-10-13 08:58:10,867 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-10-13 08:58:10,867 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-10-13 08:58:10,867 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-10-13 08:58:10,868 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-10-13 08:58:10,868 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-10-13 08:58:10,868 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-10-13 08:58:10,868 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-10-13 08:58:10,868 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,868 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,868 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,868 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-10-13 08:58:10,868 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-10-13 08:58:10,868 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-10-13 08:58:10,869 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-10-13 08:58:10,869 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-10-13 08:58:10,869 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-10-13 08:58:10,869 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-10-13 08:58:10,869 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-10-13 08:58:10,869 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,869 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,869 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-10-13 08:58:10,869 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-10-13 08:58:10,869 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-10-13 08:58:10,869 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-10-13 08:58:10,870 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-10-13 08:58:10,870 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-10-13 08:58:10,870 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-10-13 08:58:10,870 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-10-13 08:58:10,870 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-10-13 08:58:10,870 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,870 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,870 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-10-13 08:58:10,870 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-10-13 08:58:10,871 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-10-13 08:58:10,871 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-10-13 08:58:10,871 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-10-13 08:58:10,871 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-10-13 08:58:10,871 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,871 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,871 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-10-13 08:58:10,871 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-10-13 08:58:10,871 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-10-13 08:58:10,872 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-10-13 08:58:10,872 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-10-13 08:58:10,872 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-10-13 08:58:10,872 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-10-13 08:58:10,872 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-10-13 08:58:10,872 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,872 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,872 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-10-13 08:58:10,872 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-10-13 08:58:10,872 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-10-13 08:58:10,873 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-10-13 08:58:10,873 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-10-13 08:58:10,873 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-10-13 08:58:10,873 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-10-13 08:58:10,873 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,873 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,873 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,873 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-10-13 08:58:10,873 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-10-13 08:58:10,873 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-10-13 08:58:10,873 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-10-13 08:58:10,874 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-10-13 08:58:10,874 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-10-13 08:58:10,874 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,874 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,874 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-10-13 08:58:10,874 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,874 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-10-13 08:58:10,874 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-10-13 08:58:10,874 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-10-13 08:58:10,874 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-10-13 08:58:10,875 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-10-13 08:58:10,875 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-10-13 08:58:10,875 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-10-13 08:58:10,875 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-10-13 08:58:10,875 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-10-13 08:58:10,875 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-10-13 08:58:10,875 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,875 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,875 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,875 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-10-13 08:58:10,875 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-10-13 08:58:10,876 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-10-13 08:58:10,876 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-10-13 08:58:10,876 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-10-13 08:58:10,876 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-10-13 08:58:10,876 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-10-13 08:58:10,876 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-10-13 08:58:10,876 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,876 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,876 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,876 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-10-13 08:58:10,877 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-10-13 08:58:10,877 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-10-13 08:58:10,877 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-10-13 08:58:10,877 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-10-13 08:58:10,877 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-10-13 08:58:10,877 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-10-13 08:58:10,877 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-10-13 08:58:10,877 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,877 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,877 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,877 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-10-13 08:58:10,878 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-10-13 08:58:10,878 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-10-13 08:58:10,878 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-10-13 08:58:10,878 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-10-13 08:58:10,878 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-10-13 08:58:10,878 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-10-13 08:58:10,879 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-10-13 08:58:10,879 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-10-13 08:58:10,880 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,880 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,880 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:58:10,880 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-10-13 08:58:10,880 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-10-13 08:58:10,880 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-10-13 08:58:10,880 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-10-13 08:58:10,880 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-10-13 08:58:10,880 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 08:58:10,880 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 8 ~a15~0) (<= (+ ~a12~0 43) 0) (= ~a24~0 1) (<= ~a15~0 8) (= 7 ~a21~0)) [2020-10-13 08:58:10,881 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 08:58:10,882 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 08:58:10,882 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 7 |old(~a21~0)|)) (not (= |old(~a24~0)| 1)) (not (<= 8 |old(~a15~0)|)) (not (<= |old(~a15~0)| 8)) (and (<= 8 ~a15~0) (= ~a24~0 1) (<= ~a15~0 8) (= ~a12~0 |old(~a12~0)|) (= 7 ~a21~0)) (not (<= (+ |old(~a12~0)| 43) 0))) [2020-10-13 08:58:10,883 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-10-13 08:58:10,883 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse2 (= ~a15~0 6)) (.cse21 (<= 0 (+ ~a12~0 41))) (.cse22 (<= ~a12~0 10)) (.cse6 (<= ~a12~0 11)) (.cse18 (<= 8 ~a15~0)) (.cse15 (<= 7 ~a15~0)) (.cse11 (<= 8 ~a21~0)) (.cse13 (<= ~a21~0 8)) (.cse20 (<= 81 ~a12~0)) (.cse24 (= ~a21~0 6)) (.cse3 (<= 9 ~a21~0)) (.cse8 (<= ~a21~0 9)) (.cse12 (<= 5 ~a15~0)) (.cse10 (<= 12 ~a12~0)) (.cse4 (<= 6 ~a15~0)) (.cse5 (<= ~a24~0 1)) (.cse7 (<= 1 ~a24~0)) (.cse16 (<= 6 ~a21~0)) (.cse17 (<= ~a21~0 6)) (.cse9 (<= ~a15~0 6)) (.cse25 (= 7 ~a15~0)) (.cse23 (= ~a21~0 10)) (.cse14 (= 5 ~a15~0)) (.cse0 (= ~a24~0 1)) (.cse1 (<= ~a15~0 8)) (.cse19 (= 7 ~a21~0))) (or (and (<= 12849 ~a12~0) .cse0 .cse1 .cse2 (= ~a21~0 ~a15~0)) (and .cse3 .cse4 .cse5 (<= 0 (+ ~a12~0 42)) .cse6 .cse7 .cse8 .cse9) (not (= |old(~a24~0)| 1)) (and .cse5 .cse10 .cse11 .cse7 (<= ~a12~0 80) .cse12 .cse13) (and .cse14 .cse10 .cse0 .cse1 (= ~a21~0 9) (<= ~a12~0 78)) (and (<= ~a15~0 7) .cse5 .cse15 .cse7 .cse16 (<= (+ ~a12~0 2797) 0) .cse17) (and .cse18 .cse19) (and .cse3 .cse18 .cse20) (and .cse3 .cse4 .cse5 (<= (+ ~a12~0 45) 0) .cse7 .cse8 .cse9) (and .cse3 .cse10 .cse15 .cse0 .cse1 .cse8) (and .cse3 .cse20 .cse0) (and .cse21 .cse22 .cse23 .cse0 .cse2) (not (<= |old(~a15~0)| 8)) (and .cse18 .cse11 .cse13) (and .cse18 .cse0 .cse1) (and .cse14 .cse24 .cse0) (not (<= (+ |old(~a12~0)| 43) 0)) (and .cse25 .cse21 .cse22 .cse24 .cse0) (and (<= (+ ~a12~0 1) 0) (<= 0 (+ ~a12~0 7)) .cse0 (<= 10 ~a21~0) (<= ~a21~0 10) .cse12) (not (<= 8 |old(~a15~0)|)) (and .cse18 .cse23 .cse6) (and .cse18 (<= ~a12~0 95442) (<= 95374 ~a12~0)) (and .cse5 .cse15 .cse11 .cse7 .cse13) (not (= 7 |old(~a21~0)|)) (and .cse25 .cse0 .cse1 (<= (+ ~a12~0 460226) 0) .cse19) (and .cse14 (<= (+ ~a12~0 43) 0) (<= 2 ~a24~0)) (and .cse25 .cse20 .cse24 .cse0 .cse1) (and .cse3 (<= ~a15~0 5) .cse7 .cse8 (<= (+ ~a12~0 7499) 0) .cse12) (and .cse14 .cse10 .cse23 .cse0) (and (<= ~a12~0 46) (<= 13 ~a12~0) .cse4 .cse5 .cse7 .cse16 .cse17 .cse9) (and .cse25 .cse23 .cse0) (and .cse14 .cse0 .cse1 .cse19))) [2020-10-13 08:58:10,883 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-10-13 08:58:10,884 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-10-13 08:58:10,884 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse2 (= ~a15~0 6)) (.cse21 (<= 0 (+ ~a12~0 41))) (.cse22 (<= ~a12~0 10)) (.cse6 (<= ~a12~0 11)) (.cse18 (<= 8 ~a15~0)) (.cse15 (<= 7 ~a15~0)) (.cse11 (<= 8 ~a21~0)) (.cse13 (<= ~a21~0 8)) (.cse20 (<= 81 ~a12~0)) (.cse24 (= ~a21~0 6)) (.cse3 (<= 9 ~a21~0)) (.cse8 (<= ~a21~0 9)) (.cse12 (<= 5 ~a15~0)) (.cse10 (<= 12 ~a12~0)) (.cse4 (<= 6 ~a15~0)) (.cse5 (<= ~a24~0 1)) (.cse7 (<= 1 ~a24~0)) (.cse16 (<= 6 ~a21~0)) (.cse17 (<= ~a21~0 6)) (.cse9 (<= ~a15~0 6)) (.cse25 (= 7 ~a15~0)) (.cse23 (= ~a21~0 10)) (.cse14 (= 5 ~a15~0)) (.cse0 (= ~a24~0 1)) (.cse1 (<= ~a15~0 8)) (.cse19 (= 7 ~a21~0))) (or (and (<= 12849 ~a12~0) .cse0 .cse1 .cse2 (= ~a21~0 ~a15~0)) (and .cse3 .cse4 .cse5 (<= 0 (+ ~a12~0 42)) .cse6 .cse7 .cse8 .cse9) (not (= |old(~a24~0)| 1)) (and .cse5 .cse10 .cse11 .cse7 (<= ~a12~0 80) .cse12 .cse13) (and .cse14 .cse10 .cse0 .cse1 (= ~a21~0 9) (<= ~a12~0 78)) (and (<= ~a15~0 7) .cse5 .cse15 .cse7 .cse16 (<= (+ ~a12~0 2797) 0) .cse17) (and .cse18 .cse19) (and .cse3 .cse18 .cse20) (and .cse3 .cse4 .cse5 (<= (+ ~a12~0 45) 0) .cse7 .cse8 .cse9) (and .cse3 .cse10 .cse15 .cse0 .cse1 .cse8) (and .cse3 .cse20 .cse0) (and .cse21 .cse22 .cse23 .cse0 .cse2) (not (<= |old(~a15~0)| 8)) (and .cse18 .cse11 .cse13) (and .cse18 .cse0 .cse1) (and .cse14 .cse24 .cse0) (not (<= (+ |old(~a12~0)| 43) 0)) (and .cse25 .cse21 .cse22 .cse24 .cse0) (and (<= (+ ~a12~0 1) 0) (<= 0 (+ ~a12~0 7)) .cse0 (<= 10 ~a21~0) (<= ~a21~0 10) .cse12) (not (<= 8 |old(~a15~0)|)) (and .cse18 .cse23 .cse6) (and .cse18 (<= ~a12~0 95442) (<= 95374 ~a12~0)) (and .cse5 .cse15 .cse11 .cse7 .cse13) (not (= 7 |old(~a21~0)|)) (and .cse25 .cse0 .cse1 (<= (+ ~a12~0 460226) 0) .cse19) (and .cse14 (<= (+ ~a12~0 43) 0) (<= 2 ~a24~0)) (and .cse25 .cse20 .cse24 .cse0 .cse1) (and .cse3 (<= ~a15~0 5) .cse7 .cse8 (<= (+ ~a12~0 7499) 0) .cse12) (and .cse14 .cse10 .cse23 .cse0) (and (<= ~a12~0 46) (<= 13 ~a12~0) .cse4 .cse5 .cse7 .cse16 .cse17 .cse9) (and .cse25 .cse23 .cse0) (and .cse14 .cse0 .cse1 .cse19))) [2020-10-13 08:58:10,884 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-10-13 08:58:10,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:58:10 BoogieIcfgContainer [2020-10-13 08:58:10,917 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 08:58:10,919 INFO L168 Benchmark]: Toolchain (without parser) took 152127.24 ms. Allocated memory was 145.8 MB in the beginning and 2.0 GB in the end (delta: 1.9 GB). Free memory was 101.3 MB in the beginning and 847.8 MB in the end (delta: -746.5 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2020-10-13 08:58:10,919 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 145.8 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 08:58:10,920 INFO L168 Benchmark]: CACSL2BoogieTranslator took 864.11 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 100.9 MB in the beginning and 163.4 MB in the end (delta: -62.5 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. [2020-10-13 08:58:10,920 INFO L168 Benchmark]: Boogie Preprocessor took 135.77 ms. Allocated memory is still 204.5 MB. Free memory was 163.4 MB in the beginning and 155.9 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 7.1 GB. [2020-10-13 08:58:10,921 INFO L168 Benchmark]: RCFGBuilder took 1674.35 ms. Allocated memory was 204.5 MB in the beginning and 238.0 MB in the end (delta: 33.6 MB). Free memory was 155.9 MB in the beginning and 148.1 MB in the end (delta: 7.8 MB). Peak memory consumption was 74.1 MB. Max. memory is 7.1 GB. [2020-10-13 08:58:10,921 INFO L168 Benchmark]: TraceAbstraction took 149448.23 ms. Allocated memory was 238.0 MB in the beginning and 2.0 GB in the end (delta: 1.8 GB). Free memory was 148.1 MB in the beginning and 847.8 MB in the end (delta: -699.7 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2020-10-13 08:58:10,923 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 145.8 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 864.11 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 100.9 MB in the beginning and 163.4 MB in the end (delta: -62.5 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 135.77 ms. Allocated memory is still 204.5 MB. Free memory was 163.4 MB in the beginning and 155.9 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1674.35 ms. Allocated memory was 204.5 MB in the beginning and 238.0 MB in the end (delta: 33.6 MB). Free memory was 155.9 MB in the beginning and 148.1 MB in the end (delta: 7.8 MB). Peak memory consumption was 74.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 149448.23 ms. Allocated memory was 238.0 MB in the beginning and 2.0 GB in the end (delta: 1.8 GB). Free memory was 148.1 MB in the beginning and 847.8 MB in the end (delta: -699.7 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 175]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((12849 <= a12 && a24 == 1) && a15 <= 8) && a15 == 6) && a21 == a15) || (((((((9 <= a21 && 6 <= a15) && a24 <= 1) && 0 <= a12 + 42) && a12 <= 11) && 1 <= a24) && a21 <= 9) && a15 <= 6)) || !(\old(a24) == 1)) || ((((((a24 <= 1 && 12 <= a12) && 8 <= a21) && 1 <= a24) && a12 <= 80) && 5 <= a15) && a21 <= 8)) || (((((5 == a15 && 12 <= a12) && a24 == 1) && a15 <= 8) && a21 == 9) && a12 <= 78)) || ((((((a15 <= 7 && a24 <= 1) && 7 <= a15) && 1 <= a24) && 6 <= a21) && a12 + 2797 <= 0) && a21 <= 6)) || (8 <= a15 && 7 == a21)) || ((9 <= a21 && 8 <= a15) && 81 <= a12)) || ((((((9 <= a21 && 6 <= a15) && a24 <= 1) && a12 + 45 <= 0) && 1 <= a24) && a21 <= 9) && a15 <= 6)) || (((((9 <= a21 && 12 <= a12) && 7 <= a15) && a24 == 1) && a15 <= 8) && a21 <= 9)) || ((9 <= a21 && 81 <= a12) && a24 == 1)) || ((((0 <= a12 + 41 && a12 <= 10) && a21 == 10) && a24 == 1) && a15 == 6)) || !(\old(a15) <= 8)) || ((8 <= a15 && 8 <= a21) && a21 <= 8)) || ((8 <= a15 && a24 == 1) && a15 <= 8)) || ((5 == a15 && a21 == 6) && a24 == 1)) || !(\old(a12) + 43 <= 0)) || ((((7 == a15 && 0 <= a12 + 41) && a12 <= 10) && a21 == 6) && a24 == 1)) || (((((a12 + 1 <= 0 && 0 <= a12 + 7) && a24 == 1) && 10 <= a21) && a21 <= 10) && 5 <= a15)) || !(8 <= \old(a15))) || ((8 <= a15 && a21 == 10) && a12 <= 11)) || ((8 <= a15 && a12 <= 95442) && 95374 <= a12)) || ((((a24 <= 1 && 7 <= a15) && 8 <= a21) && 1 <= a24) && a21 <= 8)) || !(7 == \old(a21))) || ((((7 == a15 && a24 == 1) && a15 <= 8) && a12 + 460226 <= 0) && 7 == a21)) || ((5 == a15 && a12 + 43 <= 0) && 2 <= a24)) || ((((7 == a15 && 81 <= a12) && a21 == 6) && a24 == 1) && a15 <= 8)) || (((((9 <= a21 && a15 <= 5) && 1 <= a24) && a21 <= 9) && a12 + 7499 <= 0) && 5 <= a15)) || (((5 == a15 && 12 <= a12) && a21 == 10) && a24 == 1)) || (((((((a12 <= 46 && 13 <= a12) && 6 <= a15) && a24 <= 1) && 1 <= a24) && 6 <= a21) && a21 <= 6) && a15 <= 6)) || ((7 == a15 && a21 == 10) && a24 == 1)) || (((5 == a15 && a24 == 1) && a15 <= 8) && 7 == a21) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 139.5s, OverallIterations: 33, TraceHistogramMax: 7, AutomataDifference: 36.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 873 SDtfs, 11490 SDslu, 887 SDs, 0 SdLazy, 23515 SolverSat, 1028 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 499 GetRequests, 269 SyntacticMatches, 31 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3340occurred in iteration=31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 33 MinimizatonAttempts, 556 StatesRemovedByMinimization, 32 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 221 PreInvPairs, 303 NumberOfFragments, 1975 HoareAnnotationTreeSize, 221 FomulaSimplifications, 650368353646 FormulaSimplificationTreeSizeReduction, 2.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 138313 FormulaSimplificationTreeSizeReductionInter, 7.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 95.3s InterpolantComputationTime, 11170 NumberOfCodeBlocks, 11170 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 11137 ConstructedInterpolants, 0 QuantifiedInterpolants, 13031464 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 33 InterpolantComputations, 2 PerfectInterpolantSequences, 13912/14776 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...