/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/Problem02_label25.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:10:40,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:10:40,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:10:40,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:10:40,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:10:40,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:10:40,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:10:40,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:10:40,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:10:40,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:10:40,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:10:40,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:10:40,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:10:40,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:10:40,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:10:40,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:10:40,414 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:10:40,415 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:10:40,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:10:40,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:10:40,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:10:40,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:10:40,423 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:10:40,424 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:10:40,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:10:40,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:10:40,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:10:40,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:10:40,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:10:40,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:10:40,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:10:40,439 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:10:40,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:10:40,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:10:40,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:10:40,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:10:40,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:10:40,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:10:40,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:10:40,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:10:40,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:10:40,450 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 06:10:40,492 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:10:40,492 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:10:40,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:10:40,495 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:10:40,495 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:10:40,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:10:40,496 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:10:40,496 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:10:40,496 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:10:40,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:10:40,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:10:40,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:10:40,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:10:40,498 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:10:40,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:10:40,499 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:10:40,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:10:40,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:10:40,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:10:40,500 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:10:40,500 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:10:40,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:10:40,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:10:40,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:10:40,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:10:40,501 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:10:40,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:10:40,501 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:10:40,502 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:10:40,502 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 06:10:40,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:10:40,869 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:10:40,873 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:10:40,875 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:10:40,877 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:10:40,878 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label25.c [2020-10-13 06:10:40,947 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13e45cb6c/b7e0f0e523bd428883585c19274e0a94/FLAGed18dd3e9 [2020-10-13 06:10:41,586 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:10:41,586 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label25.c [2020-10-13 06:10:41,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13e45cb6c/b7e0f0e523bd428883585c19274e0a94/FLAGed18dd3e9 [2020-10-13 06:10:41,795 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13e45cb6c/b7e0f0e523bd428883585c19274e0a94 [2020-10-13 06:10:41,803 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:10:41,804 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:10:41,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:10:41,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:10:41,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:10:41,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:10:41" (1/1) ... [2020-10-13 06:10:41,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59b5b041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:41, skipping insertion in model container [2020-10-13 06:10:41,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:10:41" (1/1) ... [2020-10-13 06:10:41,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:10:41,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:10:42,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:10:42,355 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:10:42,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:10:42,656 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:10:42,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:42 WrapperNode [2020-10-13 06:10:42,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:10:42,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:10:42,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:10:42,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:10:42,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:42" (1/1) ... [2020-10-13 06:10:42,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:42" (1/1) ... [2020-10-13 06:10:42,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:42" (1/1) ... [2020-10-13 06:10:42,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:42" (1/1) ... [2020-10-13 06:10:42,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:42" (1/1) ... [2020-10-13 06:10:42,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:42" (1/1) ... [2020-10-13 06:10:42,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:42" (1/1) ... [2020-10-13 06:10:42,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:10:42,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:10:42,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:10:42,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:10:42,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:42" (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 06:10:42,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:10:42,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:10:42,836 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:10:42,836 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:10:42,837 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:10:42,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:10:42,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:10:42,837 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:10:42,837 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:10:42,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:10:42,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:10:43,962 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:10:43,963 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:10:43,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:10:43 BoogieIcfgContainer [2020-10-13 06:10:43,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:10:43,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:10:43,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:10:43,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:10:43,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:10:41" (1/3) ... [2020-10-13 06:10:43,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb02282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:10:43, skipping insertion in model container [2020-10-13 06:10:43,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:42" (2/3) ... [2020-10-13 06:10:43,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb02282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:10:43, skipping insertion in model container [2020-10-13 06:10:43,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:10:43" (3/3) ... [2020-10-13 06:10:43,978 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label25.c [2020-10-13 06:10:43,988 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:10:43,996 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:10:44,010 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:10:44,036 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:10:44,037 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:10:44,037 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:10:44,037 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:10:44,038 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:10:44,038 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:10:44,038 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:10:44,038 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:10:44,062 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-10-13 06:10:44,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-13 06:10:44,085 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:44,086 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:44,087 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:44,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:44,094 INFO L82 PathProgramCache]: Analyzing trace with hash 167533094, now seen corresponding path program 1 times [2020-10-13 06:10:44,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:44,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1170423446] [2020-10-13 06:10:44,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:44,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:44,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:44,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:46,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:46,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-13 06:10:46,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:10:46,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1596 [2020-10-13 06:10:46,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:46,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 06:10:46,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:10:46,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:10:46,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 06:10:46,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:46,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:46,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:46,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:46,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:46,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:10:46,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:46,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:46,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:46,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:10:46,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:10:46,836 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 06:10:46,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1170423446] [2020-10-13 06:10:46,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:10:46,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 06:10:46,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060569542] [2020-10-13 06:10:46,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 06:10:46,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:46,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 06:10:46,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:10:46,874 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 11 states. [2020-10-13 06:10:47,524 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2020-10-13 06:10:47,772 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2020-10-13 06:10:48,214 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-10-13 06:10:48,568 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2020-10-13 06:10:49,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:49,498 INFO L93 Difference]: Finished difference Result 536 states and 892 transitions. [2020-10-13 06:10:49,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:10:49,500 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 140 [2020-10-13 06:10:49,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:49,516 INFO L225 Difference]: With dead ends: 536 [2020-10-13 06:10:49,516 INFO L226 Difference]: Without dead ends: 236 [2020-10-13 06:10:49,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:10:49,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-13 06:10:49,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-13 06:10:49,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-13 06:10:49,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 323 transitions. [2020-10-13 06:10:49,589 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 323 transitions. Word has length 140 [2020-10-13 06:10:49,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:49,590 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 323 transitions. [2020-10-13 06:10:49,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 06:10:49,590 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 323 transitions. [2020-10-13 06:10:49,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-13 06:10:49,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:49,595 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:49,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:10:49,596 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:49,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:49,596 INFO L82 PathProgramCache]: Analyzing trace with hash -2141178473, now seen corresponding path program 1 times [2020-10-13 06:10:49,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:49,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1049898259] [2020-10-13 06:10:49,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:49,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:49,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:49,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:50,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:51,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:51,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-13 06:10:51,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:10:51,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1695 [2020-10-13 06:10:51,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:51,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:10:51,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 06:10:51,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:10:51,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:10:51,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:51,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:51,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:51,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:51,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:51,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:51,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:10:51,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:51,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:51,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:51,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:51,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 06:10:51,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:51,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:51,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:51,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:10:51,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:51,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:10:51,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:51,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:51,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:51,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 06:10:51,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-13 06:10:51,876 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:10:51,876 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1049898259] [2020-10-13 06:10:51,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:51,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:10:51,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090556686] [2020-10-13 06:10:51,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:10:51,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:51,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:10:51,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:10:51,881 INFO L87 Difference]: Start difference. First operand 233 states and 323 transitions. Second operand 12 states. [2020-10-13 06:10:53,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:53,740 INFO L93 Difference]: Finished difference Result 549 states and 794 transitions. [2020-10-13 06:10:53,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 06:10:53,741 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 149 [2020-10-13 06:10:53,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:53,746 INFO L225 Difference]: With dead ends: 549 [2020-10-13 06:10:53,746 INFO L226 Difference]: Without dead ends: 236 [2020-10-13 06:10:53,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:10:53,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-13 06:10:53,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-13 06:10:53,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-13 06:10:53,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 308 transitions. [2020-10-13 06:10:53,793 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 308 transitions. Word has length 149 [2020-10-13 06:10:53,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:53,796 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 308 transitions. [2020-10-13 06:10:53,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:10:53,796 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 308 transitions. [2020-10-13 06:10:53,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-13 06:10:53,804 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:53,804 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:10:53,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:10:53,805 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:53,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:53,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1220941839, now seen corresponding path program 1 times [2020-10-13 06:10:53,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:53,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1008935069] [2020-10-13 06:10:53,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:53,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:53,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:53,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:54,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:55,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:55,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-13 06:10:55,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:10:55,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1548 [2020-10-13 06:10:55,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:55,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:10:55,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 06:10:55,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:10:55,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:55,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:55,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:55,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:55,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:55,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:55,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:55,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:10:55,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:55,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:55,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:55,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:55,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 06:10:55,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:55,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:55,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:55,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:10:55,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:55,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:10:55,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:55,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:55,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:55,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:10:55,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:10:56,029 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:10:56,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1008935069] [2020-10-13 06:10:56,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:56,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:10:56,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359556822] [2020-10-13 06:10:56,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:10:56,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:56,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:10:56,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:10:56,034 INFO L87 Difference]: Start difference. First operand 233 states and 308 transitions. Second operand 12 states. [2020-10-13 06:10:57,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:57,750 INFO L93 Difference]: Finished difference Result 554 states and 772 transitions. [2020-10-13 06:10:57,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:10:57,751 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 153 [2020-10-13 06:10:57,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:57,757 INFO L225 Difference]: With dead ends: 554 [2020-10-13 06:10:57,757 INFO L226 Difference]: Without dead ends: 327 [2020-10-13 06:10:57,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-10-13 06:10:57,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-13 06:10:57,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 318. [2020-10-13 06:10:57,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-13 06:10:57,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 397 transitions. [2020-10-13 06:10:57,789 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 397 transitions. Word has length 153 [2020-10-13 06:10:57,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:10:57,789 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 397 transitions. [2020-10-13 06:10:57,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:10:57,790 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 397 transitions. [2020-10-13 06:10:57,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-13 06:10:57,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:10:57,793 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:57,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:10:57,793 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:10:57,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:10:57,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1868563865, now seen corresponding path program 1 times [2020-10-13 06:10:57,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:10:57,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1027567399] [2020-10-13 06:10:57,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:10:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:57,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:57,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:58,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:58,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-13 06:10:58,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:10:58,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 459 [2020-10-13 06:10:58,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:58,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:10:58,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-13 06:10:58,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-13 06:10:58,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:10:58,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:10:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:58,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:58,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:58,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:10:58,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:58,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:10:58,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:58,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:58,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:58,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:58,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:10:58,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:10:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:58,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:58,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:58,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:10:58,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:58,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:10:58,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:58,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:10:58,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:58,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:10:58,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:58,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 06:10:58,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:10:58,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:10:58,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:10:58,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 06:10:58,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:10:58,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:10:58,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:10:58,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:10:58,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:10:58,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 06:10:58,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:10:58,654 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:10:58,654 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1027567399] [2020-10-13 06:10:58,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:10:58,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:10:58,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798414973] [2020-10-13 06:10:58,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:10:58,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:10:58,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:10:58,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:10:58,657 INFO L87 Difference]: Start difference. First operand 318 states and 397 transitions. Second operand 5 states. [2020-10-13 06:10:59,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:10:59,961 INFO L93 Difference]: Finished difference Result 724 states and 951 transitions. [2020-10-13 06:10:59,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:10:59,962 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 175 [2020-10-13 06:10:59,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:10:59,994 INFO L225 Difference]: With dead ends: 724 [2020-10-13 06:10:59,995 INFO L226 Difference]: Without dead ends: 323 [2020-10-13 06:10:59,999 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 06:11:00,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-10-13 06:11:00,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 318. [2020-10-13 06:11:00,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-13 06:11:00,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 395 transitions. [2020-10-13 06:11:00,023 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 395 transitions. Word has length 175 [2020-10-13 06:11:00,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:00,024 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 395 transitions. [2020-10-13 06:11:00,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:11:00,024 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 395 transitions. [2020-10-13 06:11:00,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-13 06:11:00,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:00,027 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:00,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:11:00,028 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:00,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:00,028 INFO L82 PathProgramCache]: Analyzing trace with hash 564024486, now seen corresponding path program 1 times [2020-10-13 06:11:00,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:00,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1080577082] [2020-10-13 06:11:00,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:00,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:00,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:00,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:01,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:01,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-13 06:11:01,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:11:01,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1456 [2020-10-13 06:11:01,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:01,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:11:01,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-13 06:11:01,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:11:01,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:02,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:02,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:02,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:02,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:02,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:02,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:11:02,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:02,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:02,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:02,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:02,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:02,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:02,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:02,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:02,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:02,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:11:02,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:02,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 06:11:02,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:02,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:02,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:11:02,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:02,577 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:11:02,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1080577082] [2020-10-13 06:11:02,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:02,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:11:02,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24502088] [2020-10-13 06:11:02,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:11:02,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:02,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:11:02,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:11:02,593 INFO L87 Difference]: Start difference. First operand 318 states and 395 transitions. Second operand 12 states. [2020-10-13 06:11:03,244 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-13 06:11:03,701 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-13 06:11:04,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:04,433 INFO L93 Difference]: Finished difference Result 723 states and 948 transitions. [2020-10-13 06:11:04,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 06:11:04,433 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 174 [2020-10-13 06:11:04,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:04,438 INFO L225 Difference]: With dead ends: 723 [2020-10-13 06:11:04,439 INFO L226 Difference]: Without dead ends: 401 [2020-10-13 06:11:04,441 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2020-10-13 06:11:04,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-13 06:11:04,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 394. [2020-10-13 06:11:04,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-13 06:11:04,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 475 transitions. [2020-10-13 06:11:04,471 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 475 transitions. Word has length 174 [2020-10-13 06:11:04,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:04,473 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 475 transitions. [2020-10-13 06:11:04,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:11:04,474 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 475 transitions. [2020-10-13 06:11:04,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-13 06:11:04,477 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:04,478 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:11:04,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:11:04,478 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:04,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:04,479 INFO L82 PathProgramCache]: Analyzing trace with hash 970412353, now seen corresponding path program 1 times [2020-10-13 06:11:04,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:04,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [384687930] [2020-10-13 06:11:04,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:04,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:04,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:04,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:05,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:05,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:05,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-13 06:11:05,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:11:05,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1392 [2020-10-13 06:11:05,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:05,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:11:05,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-13 06:11:05,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 06:11:05,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:06,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:06,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:06,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:06,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:06,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:06,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:11:06,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:06,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:06,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:06,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:06,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:06,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:06,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:06,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:06,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:11:06,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:06,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:11:06,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:06,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:06,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:06,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:06,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:06,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 06:11:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:06,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:06,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:06,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:11:06,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:06,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:11:06,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:06,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:06,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:06,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:11:06,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:06,277 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 06:11:06,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [384687930] [2020-10-13 06:11:06,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:06,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:11:06,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912200250] [2020-10-13 06:11:06,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:11:06,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:06,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:11:06,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:11:06,280 INFO L87 Difference]: Start difference. First operand 394 states and 475 transitions. Second operand 5 states. [2020-10-13 06:11:07,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:07,228 INFO L93 Difference]: Finished difference Result 874 states and 1106 transitions. [2020-10-13 06:11:07,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:11:07,229 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 182 [2020-10-13 06:11:07,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:07,233 INFO L225 Difference]: With dead ends: 874 [2020-10-13 06:11:07,233 INFO L226 Difference]: Without dead ends: 399 [2020-10-13 06:11:07,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:11:07,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-10-13 06:11:07,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 394. [2020-10-13 06:11:07,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-13 06:11:07,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 472 transitions. [2020-10-13 06:11:07,255 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 472 transitions. Word has length 182 [2020-10-13 06:11:07,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:07,255 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 472 transitions. [2020-10-13 06:11:07,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:11:07,256 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 472 transitions. [2020-10-13 06:11:07,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-13 06:11:07,258 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:07,259 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:07,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:11:07,259 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:07,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:07,260 INFO L82 PathProgramCache]: Analyzing trace with hash 451911420, now seen corresponding path program 1 times [2020-10-13 06:11:07,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:07,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1856624614] [2020-10-13 06:11:07,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:07,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:07,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:07,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:07,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:09,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:09,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-13 06:11:09,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:11:09,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1916 [2020-10-13 06:11:09,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:09,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:11:09,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-13 06:11:09,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:11:09,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:09,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:09,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:09,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:09,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:09,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:09,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:11:09,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:09,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:09,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:09,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:09,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:09,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:09,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:09,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:09,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:11:09,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:09,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 06:11:09,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:09,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:09,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:09,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:11:09,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:10,246 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 47 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:11:10,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1856624614] [2020-10-13 06:11:10,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:10,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:11:10,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810050514] [2020-10-13 06:11:10,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:11:10,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:10,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:11:10,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:11:10,251 INFO L87 Difference]: Start difference. First operand 394 states and 472 transitions. Second operand 12 states. [2020-10-13 06:11:12,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:12,524 INFO L93 Difference]: Finished difference Result 886 states and 1110 transitions. [2020-10-13 06:11:12,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 06:11:12,526 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 191 [2020-10-13 06:11:12,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:12,529 INFO L225 Difference]: With dead ends: 886 [2020-10-13 06:11:12,529 INFO L226 Difference]: Without dead ends: 498 [2020-10-13 06:11:12,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=155, Invalid=307, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:11:12,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2020-10-13 06:11:12,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 477. [2020-10-13 06:11:12,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2020-10-13 06:11:12,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 561 transitions. [2020-10-13 06:11:12,551 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 561 transitions. Word has length 191 [2020-10-13 06:11:12,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:12,552 INFO L479 AbstractCegarLoop]: Abstraction has 477 states and 561 transitions. [2020-10-13 06:11:12,552 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:11:12,552 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 561 transitions. [2020-10-13 06:11:12,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-10-13 06:11:12,556 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:12,556 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:12,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:11:12,557 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:12,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:12,557 INFO L82 PathProgramCache]: Analyzing trace with hash -900107120, now seen corresponding path program 1 times [2020-10-13 06:11:12,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:12,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1825632032] [2020-10-13 06:11:12,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:12,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:12,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:13,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:14,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:14,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-13 06:11:14,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:11:14,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1512 [2020-10-13 06:11:14,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:14,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:11:14,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-13 06:11:14,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:11:14,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:14,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:14,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:14,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:14,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:14,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:14,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:11:14,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:14,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:14,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:14,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:14,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:14,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:14,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:14,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:14,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:11:14,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:14,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 06:11:14,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:14,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:14,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:14,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-13 06:11:14,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:14,787 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:11:14,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1825632032] [2020-10-13 06:11:14,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:14,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:11:14,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642155506] [2020-10-13 06:11:14,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:11:14,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:14,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:11:14,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:11:14,790 INFO L87 Difference]: Start difference. First operand 477 states and 561 transitions. Second operand 12 states. [2020-10-13 06:11:16,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:16,485 INFO L93 Difference]: Finished difference Result 1040 states and 1272 transitions. [2020-10-13 06:11:16,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:11:16,485 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 197 [2020-10-13 06:11:16,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:16,489 INFO L225 Difference]: With dead ends: 1040 [2020-10-13 06:11:16,490 INFO L226 Difference]: Without dead ends: 569 [2020-10-13 06:11:16,495 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=128, Invalid=252, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:11:16,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2020-10-13 06:11:16,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 556. [2020-10-13 06:11:16,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-10-13 06:11:16,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 645 transitions. [2020-10-13 06:11:16,523 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 645 transitions. Word has length 197 [2020-10-13 06:11:16,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:16,523 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 645 transitions. [2020-10-13 06:11:16,523 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:11:16,523 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 645 transitions. [2020-10-13 06:11:16,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-10-13 06:11:16,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:16,527 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:16,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:11:16,527 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:16,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:16,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1170976730, now seen corresponding path program 1 times [2020-10-13 06:11:16,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:16,529 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2048645868] [2020-10-13 06:11:16,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:16,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:16,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:16,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:17,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:18,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:18,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-10-13 06:11:18,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:11:18,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2018 [2020-10-13 06:11:18,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:18,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:11:18,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-13 06:11:18,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 06:11:18,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:18,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:18,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:18,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:18,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:18,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:18,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:11:18,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:18,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:18,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:18,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:18,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:18,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:18,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:18,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:18,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:11:18,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:18,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:11:18,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:18,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:18,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:18,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:18,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:18,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 06:11:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:18,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:18,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:18,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 06:11:18,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:18,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 06:11:18,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:18,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:18,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:18,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 06:11:18,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:18,922 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:11:18,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2048645868] [2020-10-13 06:11:18,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:18,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:11:18,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644135376] [2020-10-13 06:11:18,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:11:18,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:18,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:11:18,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:11:18,924 INFO L87 Difference]: Start difference. First operand 556 states and 645 transitions. Second operand 5 states. [2020-10-13 06:11:19,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:19,949 INFO L93 Difference]: Finished difference Result 1203 states and 1454 transitions. [2020-10-13 06:11:19,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:11:19,949 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 222 [2020-10-13 06:11:19,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:19,952 INFO L225 Difference]: With dead ends: 1203 [2020-10-13 06:11:19,953 INFO L226 Difference]: Without dead ends: 464 [2020-10-13 06:11:19,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:11:19,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-10-13 06:11:19,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 457. [2020-10-13 06:11:19,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2020-10-13 06:11:19,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 533 transitions. [2020-10-13 06:11:19,971 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 533 transitions. Word has length 222 [2020-10-13 06:11:19,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:19,971 INFO L479 AbstractCegarLoop]: Abstraction has 457 states and 533 transitions. [2020-10-13 06:11:19,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:11:19,972 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 533 transitions. [2020-10-13 06:11:19,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-10-13 06:11:19,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:19,976 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, 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] [2020-10-13 06:11:19,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:11:19,976 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:19,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:19,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1386906956, now seen corresponding path program 1 times [2020-10-13 06:11:19,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:19,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1297420382] [2020-10-13 06:11:19,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:20,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:20,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:20,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:20,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:22,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:22,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-10-13 06:11:22,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:11:22,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2846 [2020-10-13 06:11:22,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:22,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:11:22,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-13 06:11:22,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 06:11:22,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:23,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:23,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:23,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:23,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:23,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:23,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:23,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:11:23,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:23,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:23,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:23,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:23,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:23,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:23,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:23,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:23,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:23,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:11:23,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:23,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:11:23,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:23,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:23,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:23,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:23,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:23,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 06:11:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:23,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:23,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:23,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:11:23,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:23,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:11:23,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:23,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:23,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:23,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:11:23,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:23,386 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 88 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 06:11:23,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1297420382] [2020-10-13 06:11:23,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:23,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:11:23,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028143280] [2020-10-13 06:11:23,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:11:23,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:23,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:11:23,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:11:23,389 INFO L87 Difference]: Start difference. First operand 457 states and 533 transitions. Second operand 12 states. [2020-10-13 06:11:24,073 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2020-10-13 06:11:24,275 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2020-10-13 06:11:24,606 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-10-13 06:11:24,791 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2020-10-13 06:11:25,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:25,482 INFO L93 Difference]: Finished difference Result 1000 states and 1211 transitions. [2020-10-13 06:11:25,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:11:25,488 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 233 [2020-10-13 06:11:25,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:25,491 INFO L225 Difference]: With dead ends: 1000 [2020-10-13 06:11:25,492 INFO L226 Difference]: Without dead ends: 549 [2020-10-13 06:11:25,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:11:25,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2020-10-13 06:11:25,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 534. [2020-10-13 06:11:25,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2020-10-13 06:11:25,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 613 transitions. [2020-10-13 06:11:25,512 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 613 transitions. Word has length 233 [2020-10-13 06:11:25,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:25,512 INFO L479 AbstractCegarLoop]: Abstraction has 534 states and 613 transitions. [2020-10-13 06:11:25,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:11:25,513 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 613 transitions. [2020-10-13 06:11:25,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-10-13 06:11:25,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:25,515 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 06:11:25,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:11:25,516 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:25,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:25,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1019662530, now seen corresponding path program 1 times [2020-10-13 06:11:25,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:25,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1887645557] [2020-10-13 06:11:25,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:25,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:25,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:26,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:26,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-13 06:11:26,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:11:26,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 566 [2020-10-13 06:11:26,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:26,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:11:26,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 118 [2020-10-13 06:11:26,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-13 06:11:26,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:26,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:26,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:26,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:26,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:26,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:26,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:11:26,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:26,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:26,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:26,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:26,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:26,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:26,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:26,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:26,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:11:26,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:26,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:11:26,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:26,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:26,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:26,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:26,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:26,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 06:11:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:26,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:26,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:26,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 06:11:26,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:26,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 06:11:26,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:26,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:26,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:26,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 06:11:26,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:26,598 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-13 06:11:26,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1887645557] [2020-10-13 06:11:26,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:26,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:11:26,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168887073] [2020-10-13 06:11:26,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:11:26,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:26,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:11:26,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:11:26,601 INFO L87 Difference]: Start difference. First operand 534 states and 613 transitions. Second operand 5 states. [2020-10-13 06:11:27,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:27,568 INFO L93 Difference]: Finished difference Result 1157 states and 1378 transitions. [2020-10-13 06:11:27,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:11:27,569 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 246 [2020-10-13 06:11:27,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:27,573 INFO L225 Difference]: With dead ends: 1157 [2020-10-13 06:11:27,573 INFO L226 Difference]: Without dead ends: 465 [2020-10-13 06:11:27,575 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 06:11:27,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-10-13 06:11:27,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 458. [2020-10-13 06:11:27,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2020-10-13 06:11:27,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 531 transitions. [2020-10-13 06:11:27,591 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 531 transitions. Word has length 246 [2020-10-13 06:11:27,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:27,591 INFO L479 AbstractCegarLoop]: Abstraction has 458 states and 531 transitions. [2020-10-13 06:11:27,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:11:27,592 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 531 transitions. [2020-10-13 06:11:27,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-10-13 06:11:27,594 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:27,594 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:27,594 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:11:27,595 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:27,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:27,595 INFO L82 PathProgramCache]: Analyzing trace with hash -1462585391, now seen corresponding path program 1 times [2020-10-13 06:11:27,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:27,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1542431335] [2020-10-13 06:11:27,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:27,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:27,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:27,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:27,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:28,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:29,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:29,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:29,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:30,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:32,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:32,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-10-13 06:11:32,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 06:11:32,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4591 [2020-10-13 06:11:32,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:32,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:11:32,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-13 06:11:32,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:11:32,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:32,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:32,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:32,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:32,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:32,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:32,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:32,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:11:32,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:32,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:32,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:32,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:32,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:32,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:32,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:32,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:32,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:11:32,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:32,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:11:32,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:32,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:32,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:32,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:32,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:32,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 06:11:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:32,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:32,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:32,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:11:32,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:32,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:11:32,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:32,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:32,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:32,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:32,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:32,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 06:11:32,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:32,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:32,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:32,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:11:32,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:32,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:11:32,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:32,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 06:11:32,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:32,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 06:11:32,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:32,765 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 105 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-13 06:11:32,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1542431335] [2020-10-13 06:11:32,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:32,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:11:32,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146970867] [2020-10-13 06:11:32,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:11:32,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:32,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:11:32,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:11:32,768 INFO L87 Difference]: Start difference. First operand 458 states and 531 transitions. Second operand 13 states. [2020-10-13 06:11:35,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:35,206 INFO L93 Difference]: Finished difference Result 1152 states and 1420 transitions. [2020-10-13 06:11:35,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 06:11:35,214 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 253 [2020-10-13 06:11:35,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:35,217 INFO L225 Difference]: With dead ends: 1152 [2020-10-13 06:11:35,217 INFO L226 Difference]: Without dead ends: 466 [2020-10-13 06:11:35,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=303, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:11:35,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-10-13 06:11:35,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 461. [2020-10-13 06:11:35,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-10-13 06:11:35,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 542 transitions. [2020-10-13 06:11:35,234 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 542 transitions. Word has length 253 [2020-10-13 06:11:35,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:35,235 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 542 transitions. [2020-10-13 06:11:35,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:11:35,235 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 542 transitions. [2020-10-13 06:11:35,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-10-13 06:11:35,237 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:35,238 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:11:35,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:11:35,238 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:35,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:35,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1879303478, now seen corresponding path program 1 times [2020-10-13 06:11:35,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:35,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1204017181] [2020-10-13 06:11:35,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:35,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:35,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:35,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:35,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:35,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:37,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:37,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-13 06:11:37,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:11:37,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1760 [2020-10-13 06:11:37,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:37,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:11:37,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-13 06:11:37,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 06:11:37,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:37,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:37,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:37,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:37,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:37,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:37,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:11:37,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:37,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:37,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:37,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:37,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:11:37,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:37,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:37,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:37,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:11:37,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:37,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:11:37,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:37,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:37,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:37,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:37,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:37,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:11:37,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:37,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:37,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:37,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:11:37,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:37,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 06:11:37,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:37,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:37,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:37,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:11:37,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:37,611 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-13 06:11:37,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1204017181] [2020-10-13 06:11:37,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:37,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:11:37,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284169979] [2020-10-13 06:11:37,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:11:37,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:37,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:11:37,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:11:37,618 INFO L87 Difference]: Start difference. First operand 461 states and 542 transitions. Second operand 12 states. [2020-10-13 06:11:38,382 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2020-10-13 06:11:38,588 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2020-10-13 06:11:38,841 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2020-10-13 06:11:39,031 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2020-10-13 06:11:39,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:39,561 INFO L93 Difference]: Finished difference Result 954 states and 1141 transitions. [2020-10-13 06:11:39,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 06:11:39,561 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 268 [2020-10-13 06:11:39,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:39,564 INFO L225 Difference]: With dead ends: 954 [2020-10-13 06:11:39,564 INFO L226 Difference]: Without dead ends: 499 [2020-10-13 06:11:39,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-10-13 06:11:39,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-10-13 06:11:39,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 496. [2020-10-13 06:11:39,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-10-13 06:11:39,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 584 transitions. [2020-10-13 06:11:39,580 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 584 transitions. Word has length 268 [2020-10-13 06:11:39,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:39,580 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 584 transitions. [2020-10-13 06:11:39,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:11:39,581 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 584 transitions. [2020-10-13 06:11:39,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2020-10-13 06:11:39,583 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:39,583 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 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 06:11:39,583 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:11:39,584 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:39,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:39,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1357700219, now seen corresponding path program 1 times [2020-10-13 06:11:39,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:39,584 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1045093986] [2020-10-13 06:11:39,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:39,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:39,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:39,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:40,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:40,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:42,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:42,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 296 [2020-10-13 06:11:42,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:11:42,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2813 [2020-10-13 06:11:42,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:42,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:11:42,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 156 [2020-10-13 06:11:42,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:11:42,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:42,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:42,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:42,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:42,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:42,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:42,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:42,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:11:42,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:42,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:42,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:42,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:42,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:42,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:42,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:42,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:42,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:11:42,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:42,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:11:42,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:42,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:42,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:42,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:42,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:42,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:11:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:42,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:42,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:42,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:11:42,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:42,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:11:42,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:42,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:42,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:42,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:42,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:42,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:11:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:42,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:42,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:42,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 06:11:42,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:42,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:11:42,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:42,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:42,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:42,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 06:11:42,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:42,723 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 136 proven. 3 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-13 06:11:42,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1045093986] [2020-10-13 06:11:42,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:42,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:11:42,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558732582] [2020-10-13 06:11:42,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:11:42,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:42,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:11:42,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:11:42,726 INFO L87 Difference]: Start difference. First operand 496 states and 584 transitions. Second operand 5 states. [2020-10-13 06:11:43,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:43,667 INFO L93 Difference]: Finished difference Result 1072 states and 1304 transitions. [2020-10-13 06:11:43,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:11:43,671 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 282 [2020-10-13 06:11:43,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:43,675 INFO L225 Difference]: With dead ends: 1072 [2020-10-13 06:11:43,675 INFO L226 Difference]: Without dead ends: 499 [2020-10-13 06:11:43,678 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 06:11:43,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-10-13 06:11:43,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 496. [2020-10-13 06:11:43,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-10-13 06:11:43,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 579 transitions. [2020-10-13 06:11:43,693 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 579 transitions. Word has length 282 [2020-10-13 06:11:43,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:43,693 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 579 transitions. [2020-10-13 06:11:43,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:11:43,694 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 579 transitions. [2020-10-13 06:11:43,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2020-10-13 06:11:43,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:43,697 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 06:11:43,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:11:43,697 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:43,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:43,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1122653105, now seen corresponding path program 1 times [2020-10-13 06:11:43,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:43,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2065970506] [2020-10-13 06:11:43,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:43,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:43,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:43,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:43,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:44,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:44,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:44,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:45,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:45,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:47,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:47,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 303 [2020-10-13 06:11:47,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 06:11:47,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4228 [2020-10-13 06:11:47,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:47,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:11:47,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-10-13 06:11:47,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:11:47,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:48,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:48,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:48,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:48,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:48,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:48,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:11:48,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:48,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:48,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:48,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:48,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:48,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:48,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:48,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:48,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:48,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:11:48,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:48,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:11:48,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:48,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:48,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:48,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:48,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:48,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:11:48,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:48,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:48,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:48,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:11:48,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:48,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:11:48,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:48,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:48,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:48,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:48,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:48,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:11:48,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:48,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:48,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:48,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 06:11:48,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:48,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:11:48,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:48,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 06:11:48,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:48,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:11:48,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:49,032 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 141 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:11:49,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2065970506] [2020-10-13 06:11:49,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:49,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:11:49,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038039704] [2020-10-13 06:11:49,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:11:49,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:49,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:11:49,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:11:49,035 INFO L87 Difference]: Start difference. First operand 496 states and 579 transitions. Second operand 13 states. [2020-10-13 06:11:49,851 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-13 06:11:50,081 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2020-10-13 06:11:50,467 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2020-10-13 06:11:50,838 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 77 [2020-10-13 06:11:51,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:51,593 INFO L93 Difference]: Finished difference Result 1366 states and 1675 transitions. [2020-10-13 06:11:51,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:11:51,593 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 289 [2020-10-13 06:11:51,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:51,599 INFO L225 Difference]: With dead ends: 1366 [2020-10-13 06:11:51,599 INFO L226 Difference]: Without dead ends: 875 [2020-10-13 06:11:51,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:11:51,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2020-10-13 06:11:51,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 867. [2020-10-13 06:11:51,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-10-13 06:11:51,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1000 transitions. [2020-10-13 06:11:51,624 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1000 transitions. Word has length 289 [2020-10-13 06:11:51,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:51,625 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 1000 transitions. [2020-10-13 06:11:51,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:11:51,625 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1000 transitions. [2020-10-13 06:11:51,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2020-10-13 06:11:51,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:51,629 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:51,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:11:51,629 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:51,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:51,630 INFO L82 PathProgramCache]: Analyzing trace with hash -793141562, now seen corresponding path program 1 times [2020-10-13 06:11:51,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:51,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1862966238] [2020-10-13 06:11:51,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:51,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:51,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:52,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:52,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 308 [2020-10-13 06:11:52,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:11:52,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 385 [2020-10-13 06:11:52,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:52,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:11:52,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-13 06:11:52,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:11:52,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:52,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:52,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:52,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:52,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:52,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:52,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:11:52,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:52,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:52,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:52,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:52,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:52,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:52,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:52,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:52,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:52,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:11:52,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:52,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:11:52,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:52,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:52,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:52,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:52,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:52,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:11:52,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:52,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:52,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:52,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:11:52,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:52,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:11:52,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:52,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:52,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:52,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:52,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:52,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:11:52,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:52,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:52,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:52,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 06:11:52,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:52,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:11:52,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:52,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:52,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:52,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 06:11:52,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:52,521 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 148 proven. 3 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-10-13 06:11:52,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1862966238] [2020-10-13 06:11:52,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:52,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:11:52,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193980221] [2020-10-13 06:11:52,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:11:52,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:52,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:11:52,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:11:52,524 INFO L87 Difference]: Start difference. First operand 867 states and 1000 transitions. Second operand 5 states. [2020-10-13 06:11:53,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:53,549 INFO L93 Difference]: Finished difference Result 1819 states and 2146 transitions. [2020-10-13 06:11:53,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:11:53,552 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 294 [2020-10-13 06:11:53,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:53,556 INFO L225 Difference]: With dead ends: 1819 [2020-10-13 06:11:53,557 INFO L226 Difference]: Without dead ends: 872 [2020-10-13 06:11:53,559 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 06:11:53,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2020-10-13 06:11:53,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 867. [2020-10-13 06:11:53,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-10-13 06:11:53,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 985 transitions. [2020-10-13 06:11:53,580 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 985 transitions. Word has length 294 [2020-10-13 06:11:53,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:53,581 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 985 transitions. [2020-10-13 06:11:53,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:11:53,581 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 985 transitions. [2020-10-13 06:11:53,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-10-13 06:11:53,584 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:53,585 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:53,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:11:53,585 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:53,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:53,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1844736276, now seen corresponding path program 1 times [2020-10-13 06:11:53,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:53,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2107308352] [2020-10-13 06:11:53,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:53,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:53,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:53,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:53,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:53,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:54,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:55,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:55,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 313 [2020-10-13 06:11:55,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:11:55,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1908 [2020-10-13 06:11:55,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:55,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:11:55,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-13 06:11:55,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 06:11:55,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:55,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:11:55,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:55,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:55,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:55,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:11:55,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:55,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:11:55,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:55,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:55,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:55,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:55,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:55,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:11:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:55,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:55,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:55,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:11:55,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:55,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:11:55,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:55,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:55,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:55,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:55,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:55,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:11:55,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:55,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:55,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:55,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:11:55,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:55,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:11:55,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:55,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:11:55,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:55,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:11:55,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:55,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:11:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:55,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:55,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:11:55,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 06:11:55,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:11:55,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:11:55,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:11:55,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:11:55,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:11:55,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 06:11:55,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:11:55,855 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 153 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-10-13 06:11:55,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2107308352] [2020-10-13 06:11:55,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:11:55,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:11:55,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120774494] [2020-10-13 06:11:55,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:11:55,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:11:55,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:11:55,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:11:55,857 INFO L87 Difference]: Start difference. First operand 867 states and 985 transitions. Second operand 5 states. [2020-10-13 06:11:56,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:11:56,750 INFO L93 Difference]: Finished difference Result 1817 states and 2108 transitions. [2020-10-13 06:11:56,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:11:56,751 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 299 [2020-10-13 06:11:56,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:11:56,755 INFO L225 Difference]: With dead ends: 1817 [2020-10-13 06:11:56,755 INFO L226 Difference]: Without dead ends: 872 [2020-10-13 06:11:56,757 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:11:56,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2020-10-13 06:11:56,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 867. [2020-10-13 06:11:56,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-10-13 06:11:56,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 972 transitions. [2020-10-13 06:11:56,778 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 972 transitions. Word has length 299 [2020-10-13 06:11:56,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:11:56,779 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 972 transitions. [2020-10-13 06:11:56,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:11:56,779 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 972 transitions. [2020-10-13 06:11:56,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2020-10-13 06:11:56,783 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:11:56,783 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:56,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:11:56,784 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:11:56,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:11:56,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1816270987, now seen corresponding path program 1 times [2020-10-13 06:11:56,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:11:56,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [842266728] [2020-10-13 06:11:56,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:11:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:11:56,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:57,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:57,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:57,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:57,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:57,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:57,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:58,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:58,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:58,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:11:59,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:00,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:00,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:00,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 370 [2020-10-13 06:12:00,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-13 06:12:00,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3854 [2020-10-13 06:12:00,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:00,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:12:00,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-10-13 06:12:00,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:12:00,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:00,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:12:00,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:00,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:00,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:00,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:12:00,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:00,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:12:00,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:00,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:00,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:00,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:00,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:00,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:12:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:00,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:00,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:00,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:12:00,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:00,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:12:00,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:00,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:00,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:00,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:00,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:00,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:12:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:00,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:00,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:00,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:12:00,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:00,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:12:00,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:00,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:12:00,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:00,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:12:00,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:00,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:12:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:00,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:00,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:00,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 06:12:00,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:00,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:12:00,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:00,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:12:00,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:12:00,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 06:12:00,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:00,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-13 06:12:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:12:00,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:12:00,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:12:00,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 06:12:00,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:12:00,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 06:12:00,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:12:00,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:12:00,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:12:00,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:12:00,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:12:01,013 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 336 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-13 06:12:01,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [842266728] [2020-10-13 06:12:01,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:12:01,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:12:01,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121634365] [2020-10-13 06:12:01,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:12:01,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:12:01,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:12:01,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:12:01,015 INFO L87 Difference]: Start difference. First operand 867 states and 972 transitions. Second operand 7 states. [2020-10-13 06:12:01,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:12:01,770 INFO L93 Difference]: Finished difference Result 1260 states and 1389 transitions. [2020-10-13 06:12:01,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 06:12:01,771 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 354 [2020-10-13 06:12:01,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:12:01,771 INFO L225 Difference]: With dead ends: 1260 [2020-10-13 06:12:01,771 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:12:01,775 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 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 06:12:01,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:12:01,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:12:01,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:12:01,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:12:01,776 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 354 [2020-10-13 06:12:01,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:12:01,776 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:12:01,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:12:01,777 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:12:01,777 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:12:01,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:12:01,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:12:02,526 WARN L193 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 122 [2020-10-13 06:12:03,020 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 155 [2020-10-13 06:12:04,975 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 210 DAG size of output: 134 [2020-10-13 06:12:05,421 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 72 [2020-10-13 06:12:05,929 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 83 [2020-10-13 06:12:05,934 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:12:05,934 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-10-13 06:12:05,934 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:12:05,934 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,935 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,935 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,935 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,935 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,935 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-10-13 06:12:05,935 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-10-13 06:12:05,936 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-13 06:12:05,936 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-13 06:12:05,936 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-13 06:12:05,936 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-13 06:12:05,936 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-13 06:12:05,936 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-10-13 06:12:05,936 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-10-13 06:12:05,937 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-10-13 06:12:05,937 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-10-13 06:12:05,937 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-10-13 06:12:05,937 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-10-13 06:12:05,937 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,937 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,937 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,937 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,937 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-10-13 06:12:05,937 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,937 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-10-13 06:12:05,937 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-13 06:12:05,938 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-13 06:12:05,938 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-13 06:12:05,938 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-13 06:12:05,938 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-13 06:12:05,938 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-10-13 06:12:05,938 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-10-13 06:12:05,938 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-10-13 06:12:05,938 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-10-13 06:12:05,938 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-10-13 06:12:05,938 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-10-13 06:12:05,938 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-10-13 06:12:05,939 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-10-13 06:12:05,939 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-10-13 06:12:05,939 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,939 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,939 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,939 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,939 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,939 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 574) no Hoare annotation was computed. [2020-10-13 06:12:05,939 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-10-13 06:12:05,940 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-10-13 06:12:05,940 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-10-13 06:12:05,940 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-13 06:12:05,940 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-13 06:12:05,940 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-13 06:12:05,940 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-13 06:12:05,940 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-13 06:12:05,940 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-10-13 06:12:05,940 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-10-13 06:12:05,940 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-10-13 06:12:05,941 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,941 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,941 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,941 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,941 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,941 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-10-13 06:12:05,941 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-10-13 06:12:05,941 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-10-13 06:12:05,941 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-13 06:12:05,942 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-13 06:12:05,942 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-13 06:12:05,942 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-13 06:12:05,942 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-13 06:12:05,942 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-10-13 06:12:05,942 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-10-13 06:12:05,942 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-10-13 06:12:05,942 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-10-13 06:12:05,942 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-10-13 06:12:05,942 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,943 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,943 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,943 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,943 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,943 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-10-13 06:12:05,943 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-10-13 06:12:05,943 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-13 06:12:05,943 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-13 06:12:05,943 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-13 06:12:05,943 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-13 06:12:05,944 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-10-13 06:12:05,944 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-10-13 06:12:05,944 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-10-13 06:12:05,944 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-10-13 06:12:05,944 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-10-13 06:12:05,944 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-10-13 06:12:05,944 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-10-13 06:12:05,944 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-10-13 06:12:05,944 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-10-13 06:12:05,944 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-10-13 06:12:05,945 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,945 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,945 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,945 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,945 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-10-13 06:12:05,945 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,945 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-10-13 06:12:05,945 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,945 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-10-13 06:12:05,945 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-10-13 06:12:05,945 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-10-13 06:12:05,946 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,946 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,946 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-10-13 06:12:05,946 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-13 06:12:05,946 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-13 06:12:05,946 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-13 06:12:05,946 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-13 06:12:05,946 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-13 06:12:05,946 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-10-13 06:12:05,946 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-10-13 06:12:05,947 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-10-13 06:12:05,947 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-10-13 06:12:05,947 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-10-13 06:12:05,947 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,947 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,947 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,947 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,947 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,947 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,947 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-10-13 06:12:05,948 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-10-13 06:12:05,948 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-13 06:12:05,948 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-13 06:12:05,948 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-13 06:12:05,948 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-13 06:12:05,948 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-13 06:12:05,948 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-10-13 06:12:05,948 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-10-13 06:12:05,948 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-10-13 06:12:05,949 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-10-13 06:12:05,949 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,949 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,949 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,949 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,949 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,949 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,949 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-10-13 06:12:05,949 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-10-13 06:12:05,950 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-10-13 06:12:05,950 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-10-13 06:12:05,950 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-13 06:12:05,950 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-13 06:12:05,950 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-13 06:12:05,950 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-13 06:12:05,950 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-13 06:12:05,950 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-10-13 06:12:05,950 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-10-13 06:12:05,951 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-10-13 06:12:05,951 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-10-13 06:12:05,951 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-10-13 06:12:05,951 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,951 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,951 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,952 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse5 (= ~a11~0 |old(~a11~0)|)) (.cse7 (= ~a17~0 8)) (.cse18 (= ~a25~0 1)) (.cse15 (= ~a19~0 |old(~a19~0)|)) (.cse25 (= ~a28~0 10)) (.cse24 (= |old(~a19~0)| 1)) (.cse2 (= |old(~a25~0)| 1)) (.cse4 (= |old(~a11~0)| 1))) (let ((.cse23 (= ~a19~0 1)) (.cse8 (= 7 ~a28~0)) (.cse10 (not (= 7 |old(~a28~0)|))) (.cse0 (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6)))) (.cse6 (= ~a25~0 |old(~a25~0)|)) (.cse21 (not (<= |old(~a19~0)| 1))) (.cse22 (not (<= 1 |old(~a19~0)|))) (.cse12 (not (= 0 |old(~a25~0)|))) (.cse26 (not (= 7 |old(~a17~0)|))) (.cse27 (= 7 ~a17~0)) (.cse14 (= ~a28~0 9)) (.cse1 (not (= 0 |old(~a19~0)|))) (.cse13 (not (= 9 |old(~a28~0)|))) (.cse16 (not .cse4)) (.cse17 (not .cse2)) (.cse19 (not (= 10 |old(~a28~0)|))) (.cse11 (not .cse24)) (.cse3 (not (= 8 |old(~a17~0)|))) (.cse20 (and .cse5 .cse7 .cse18 .cse15 .cse25)) (.cse9 (not (= ~a21~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (and (= ~a19~0 0) .cse5 .cse6 .cse7 .cse8) .cse9 .cse10) (or .cse11 .cse3 .cse12 .cse13 .cse9 (and .cse5 .cse6 .cse7 .cse14 .cse15) .cse16) (or .cse17 .cse11 .cse3 .cse13 .cse9 (and .cse5 .cse7 .cse18 .cse14 .cse15)) (or .cse0 .cse17 .cse19 .cse1 .cse3 .cse4 .cse20 .cse9) (or (not (<= |old(~a25~0)| 1)) (not (<= |old(~a28~0)| 7)) .cse21 (not (<= |old(~a11~0)| 1)) (not (<= 7 |old(~a17~0)|)) .cse22 (not (<= |old(~a17~0)| 7)) (not (<= 7 |old(~a28~0)|)) (and (<= 1 ~a11~0) (<= 7 ~a17~0) (<= 1 ~a25~0) (<= 7 ~a28~0) (<= ~a11~0 1) (<= ~a28~0 7) (<= ~a25~0 1) (<= ~a17~0 7) .cse15) .cse9 (not (<= 1 |old(~a11~0)|)) (not (<= 1 |old(~a25~0)|))) (or .cse0 (and (= ~a25~0 ~a11~0) .cse23 .cse6 .cse7 .cse8) .cse11 (not (= 0 |old(~a11~0)|)) .cse3 .cse9 .cse10 (not (= |old(~a11~0)| |old(~a25~0)|))) (or .cse0 (and .cse5 .cse6 .cse7 (= ~a28~0 8) .cse15) .cse24 .cse3 .cse12 .cse4 .cse9 (not (= 8 |old(~a28~0)|))) (or .cse0 .cse11 .cse3 .cse4 .cse13 .cse9 (and .cse5 .cse23 .cse6 .cse7 .cse14)) (or .cse24 (and .cse5 .cse6 .cse7 .cse8 .cse15) .cse3 .cse12 .cse9 .cse10 .cse16) (or .cse0 .cse19 .cse11 .cse3 .cse4 .cse9 (and .cse5 .cse6 .cse7 .cse15 .cse25)) (or .cse21 .cse17 (and (= ~a28~0 |old(~a28~0)|) .cse5 .cse7 .cse18 .cse15) .cse22 .cse3 .cse4 .cse9) (or .cse19 .cse26 (not (= |old(~a19~0)| |old(~a25~0)|)) .cse12 .cse9 (and .cse27 .cse5 (= ~a25~0 ~a19~0) .cse15 .cse25) .cse16) (or .cse17 .cse26 (and .cse27 .cse5 .cse18 .cse14 .cse15) .cse1 .cse13 .cse9 .cse16) (or .cse17 .cse19 .cse11 .cse3 .cse20 .cse9)))) [2020-10-13 06:12:05,952 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,952 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,952 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,952 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-10-13 06:12:05,952 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-10-13 06:12:05,952 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-10-13 06:12:05,953 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-13 06:12:05,953 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-13 06:12:05,953 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-13 06:12:05,953 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-13 06:12:05,953 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-13 06:12:05,953 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-13 06:12:05,953 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-10-13 06:12:05,953 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-10-13 06:12:05,953 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-10-13 06:12:05,953 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-10-13 06:12:05,954 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,954 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,954 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,954 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,954 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,954 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,954 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-10-13 06:12:05,954 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-10-13 06:12:05,954 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-10-13 06:12:05,954 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-13 06:12:05,955 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-13 06:12:05,955 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-13 06:12:05,955 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-13 06:12:05,955 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-13 06:12:05,955 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-10-13 06:12:05,955 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-10-13 06:12:05,955 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-10-13 06:12:05,955 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-10-13 06:12:05,955 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-10-13 06:12:05,955 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-10-13 06:12:05,955 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-10-13 06:12:05,956 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-10-13 06:12:05,956 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,956 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,956 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,956 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,956 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:12:05,956 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-10-13 06:12:05,956 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-10-13 06:12:05,956 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-10-13 06:12:05,956 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-10-13 06:12:05,956 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-10-13 06:12:05,957 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-13 06:12:05,957 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-13 06:12:05,957 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-13 06:12:05,957 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-13 06:12:05,957 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-13 06:12:05,958 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-10-13 06:12:05,958 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-10-13 06:12:05,958 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-10-13 06:12:05,958 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-10-13 06:12:05,958 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-10-13 06:12:05,958 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-10-13 06:12:05,958 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-10-13 06:12:05,958 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-10-13 06:12:05,958 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-10-13 06:12:05,958 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:12:05,959 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a25~0 ~a11~0) (= ~a21~0 1) (= ~a17~0 8) (= 7 ~a28~0) (= ~a11~0 0) (<= ~a19~0 1) (<= 1 ~a19~0)) [2020-10-13 06:12:05,959 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:12:05,959 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:12:05,959 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (and (= ~a25~0 ~a11~0) (= ~a19~0 1) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8) (= 7 ~a28~0)) (not (= |old(~a19~0)| 1)) (not (= 0 |old(~a11~0)|)) (not (= 8 |old(~a17~0)|)) (not (= ~a21~0 1)) (not (= 7 |old(~a28~0)|)) (not (= |old(~a11~0)| |old(~a25~0)|))) [2020-10-13 06:12:05,959 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse4 (= ~a11~0 1)) (.cse10 (= ~a19~0 1))) (let ((.cse6 (<= ~a19~0 1)) (.cse8 (<= 1 ~a19~0)) (.cse12 (not .cse10)) (.cse0 (= ~a19~0 0)) (.cse13 (= 7 ~a28~0)) (.cse7 (not .cse4)) (.cse1 (= 7 ~a17~0)) (.cse11 (= ~a25~0 0)) (.cse3 (= ~a28~0 9)) (.cse5 (= ~a17~0 8)) (.cse2 (= ~a25~0 1)) (.cse9 (= ~a28~0 10))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse2 .cse6 .cse7 .cse8) (not (= |old(~a19~0)| 1)) (not (= 8 |old(~a17~0)|)) (and .cse0 .cse5 .cse2 .cse7 .cse9) (and (<= 1 ~a11~0) (<= 7 ~a17~0) (<= 1 ~a25~0) (<= 7 ~a28~0) (<= ~a11~0 1) .cse6 (<= ~a28~0 7) (<= ~a25~0 1) (<= ~a17~0 7) .cse8) (and .cse10 .cse11 .cse5 .cse3) (and .cse11 .cse5 .cse12 .cse7 (= ~a28~0 8)) (and .cse11 .cse5 .cse12 .cse13 .cse4) (and .cse0 .cse5 .cse13 .cse7 (not .cse2)) (and .cse5 .cse3 .cse7 (= ~a19~0 |old(~a19~0)|)) (and (= ~a25~0 ~a11~0) .cse10 (= ~a25~0 |old(~a25~0)|) .cse5 .cse13) (and .cse10 .cse5 .cse7 .cse9) (and .cse1 .cse11 .cse4 (= ~a25~0 ~a19~0) .cse9) (not (= 0 |old(~a11~0)|)) (and .cse10 .cse5 .cse2 .cse3) (not (= ~a21~0 1)) (not (= 7 |old(~a28~0)|)) (and .cse10 .cse5 .cse2 .cse9) (not (= |old(~a11~0)| |old(~a25~0)|))))) [2020-10-13 06:12:05,959 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-10-13 06:12:05,960 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-10-13 06:12:05,960 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse7 (= ~a11~0 1)) (.cse12 (= ~a19~0 1))) (let ((.cse8 (<= ~a19~0 1)) (.cse9 (<= 1 ~a19~0)) (.cse11 (not .cse12)) (.cse5 (= 7 ~a17~0)) (.cse10 (= ~a25~0 0)) (.cse2 (= ~a28~0 9)) (.cse13 (= 7 ~a28~0)) (.cse4 (= ~a19~0 0)) (.cse0 (or (= 5 main_~input~0) (= 6 main_~input~0) (= main_~input~0 4) (= 3 main_~input~0) (= main_~input~0 1))) (.cse3 (not .cse7)) (.cse1 (= ~a17~0 8)) (.cse6 (= ~a25~0 1)) (.cse14 (= ~a28~0 10))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~a19~0 |old(~a19~0)|)) (and .cse4 .cse5 .cse6 .cse2 .cse7) (and .cse1 .cse6 .cse8 .cse3 .cse9) (not (= |old(~a19~0)| 1)) (and .cse0 .cse10 .cse1 .cse11 .cse3 (= ~a28~0 8)) (not (= 8 |old(~a17~0)|)) (and .cse0 (= ~a25~0 ~a11~0) .cse12 (= ~a25~0 |old(~a25~0)|) .cse1 .cse13) (and (<= 1 ~a11~0) (<= 7 ~a17~0) (<= 1 ~a25~0) (<= 7 ~a28~0) (<= ~a11~0 1) .cse8 (<= ~a28~0 7) (<= ~a25~0 1) (<= ~a17~0 7) .cse9) (and .cse10 .cse1 .cse11 .cse13 .cse7) (and .cse12 .cse10 .cse1 .cse2 .cse7) (and .cse5 .cse10 .cse7 (= ~a25~0 ~a19~0) .cse14) (not (= 0 |old(~a11~0)|)) (and .cse12 .cse1 .cse6 .cse2) (not (= ~a21~0 1)) (and .cse0 .cse4 .cse1 .cse13 .cse3 (not .cse6)) (and .cse0 .cse4 .cse1 .cse6 .cse3 .cse14) (and .cse0 .cse12 .cse1 .cse3 .cse14) (not (= 7 |old(~a28~0)|)) (and .cse12 .cse1 .cse6 .cse14) (not (= |old(~a11~0)| |old(~a25~0)|))))) [2020-10-13 06:12:05,960 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-10-13 06:12:05,960 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-10-13 06:12:06,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:12:06 BoogieIcfgContainer [2020-10-13 06:12:06,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:12:06,012 INFO L168 Benchmark]: Toolchain (without parser) took 84205.01 ms. Allocated memory was 137.9 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 99.3 MB in the beginning and 441.2 MB in the end (delta: -342.0 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2020-10-13 06:12:06,012 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 06:12:06,013 INFO L168 Benchmark]: CACSL2BoogieTranslator took 851.52 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 99.1 MB in the beginning and 168.5 MB in the end (delta: -69.5 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2020-10-13 06:12:06,013 INFO L168 Benchmark]: Boogie Preprocessor took 104.41 ms. Allocated memory is still 201.9 MB. Free memory was 168.5 MB in the beginning and 163.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-10-13 06:12:06,016 INFO L168 Benchmark]: RCFGBuilder took 1207.19 ms. Allocated memory was 201.9 MB in the beginning and 231.7 MB in the end (delta: 29.9 MB). Free memory was 163.4 MB in the beginning and 179.0 MB in the end (delta: -15.6 MB). Peak memory consumption was 86.3 MB. Max. memory is 7.1 GB. [2020-10-13 06:12:06,017 INFO L168 Benchmark]: TraceAbstraction took 82037.05 ms. Allocated memory was 231.7 MB in the beginning and 1.2 GB in the end (delta: 966.8 MB). Free memory was 177.6 MB in the beginning and 441.2 MB in the end (delta: -263.7 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2020-10-13 06:12:06,025 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 851.52 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 99.1 MB in the beginning and 168.5 MB in the end (delta: -69.5 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.41 ms. Allocated memory is still 201.9 MB. Free memory was 168.5 MB in the beginning and 163.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1207.19 ms. Allocated memory was 201.9 MB in the beginning and 231.7 MB in the end (delta: 29.9 MB). Free memory was 163.4 MB in the beginning and 179.0 MB in the end (delta: -15.6 MB). Peak memory consumption was 86.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 82037.05 ms. Allocated memory was 231.7 MB in the beginning and 1.2 GB in the end (delta: 966.8 MB). Free memory was 177.6 MB in the beginning and 441.2 MB in the end (delta: -263.7 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 574]: 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: 606]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((a19 == 0 && 7 == a17) && a25 == 1) && a28 == 9) && a11 == 1) || ((((a17 == 8 && a25 == 1) && a19 <= 1) && !(a11 == 1)) && 1 <= a19)) || !(\old(a19) == 1)) || !(8 == \old(a17))) || ((((a19 == 0 && a17 == 8) && a25 == 1) && !(a11 == 1)) && a28 == 10)) || (((((((((1 <= a11 && 7 <= a17) && 1 <= a25) && 7 <= a28) && a11 <= 1) && a19 <= 1) && a28 <= 7) && a25 <= 1) && a17 <= 7) && 1 <= a19)) || (((a19 == 1 && a25 == 0) && a17 == 8) && a28 == 9)) || ((((a25 == 0 && a17 == 8) && !(a19 == 1)) && !(a11 == 1)) && a28 == 8)) || ((((a25 == 0 && a17 == 8) && !(a19 == 1)) && 7 == a28) && a11 == 1)) || ((((a19 == 0 && a17 == 8) && 7 == a28) && !(a11 == 1)) && !(a25 == 1))) || (((a17 == 8 && a28 == 9) && !(a11 == 1)) && a19 == \old(a19))) || ((((a25 == a11 && a19 == 1) && a25 == \old(a25)) && a17 == 8) && 7 == a28)) || (((a19 == 1 && a17 == 8) && !(a11 == 1)) && a28 == 10)) || ((((7 == a17 && a25 == 0) && a11 == 1) && a25 == a19) && a28 == 10)) || !(0 == \old(a11))) || (((a19 == 1 && a17 == 8) && a25 == 1) && a28 == 9)) || !(a21 == 1)) || !(7 == \old(a28))) || (((a19 == 1 && a17 == 8) && a25 == 1) && a28 == 10)) || !(\old(a11) == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 77.7s, OverallIterations: 18, TraceHistogramMax: 5, AutomataDifference: 29.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 675 SDtfs, 7124 SDslu, 958 SDs, 0 SdLazy, 14644 SolverSat, 1221 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 389 GetRequests, 160 SyntacticMatches, 7 SemanticMatches, 222 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 12.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=867occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 18 MinimizatonAttempts, 124 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 108 PreInvPairs, 146 NumberOfFragments, 1439 HoareAnnotationTreeSize, 108 FomulaSimplifications, 20709722 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1833 FormulaSimplificationTreeSizeReductionInter, 2.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 44.2s InterpolantComputationTime, 4101 NumberOfCodeBlocks, 4101 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 4083 ConstructedInterpolants, 0 QuantifiedInterpolants, 9044540 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 1 PerfectInterpolantSequences, 2294/2328 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...