/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label48.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 15:34:27,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 15:34:27,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 15:34:27,390 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 15:34:27,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 15:34:27,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 15:34:27,401 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 15:34:27,406 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 15:34:27,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 15:34:27,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 15:34:27,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 15:34:27,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 15:34:27,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 15:34:27,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 15:34:27,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 15:34:27,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 15:34:27,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 15:34:27,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 15:34:27,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 15:34:27,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 15:34:27,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 15:34:27,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 15:34:27,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 15:34:27,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 15:34:27,491 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 15:34:27,492 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 15:34:27,492 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 15:34:27,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 15:34:27,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 15:34:27,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 15:34:27,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 15:34:27,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 15:34:27,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 15:34:27,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 15:34:27,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 15:34:27,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 15:34:27,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 15:34:27,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 15:34:27,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 15:34:27,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 15:34:27,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 15:34:27,508 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 [2020-10-27 15:34:27,540 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 15:34:27,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 15:34:27,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 15:34:27,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 15:34:27,543 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 15:34:27,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 15:34:27,543 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 15:34:27,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 15:34:27,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 15:34:27,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 15:34:27,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 15:34:27,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 15:34:27,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 15:34:27,546 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 15:34:27,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 15:34:27,546 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 15:34:27,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 15:34:27,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 15:34:27,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 15:34:27,548 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 15:34:27,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 15:34:27,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 15:34:27,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 15:34:27,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 15:34:27,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 15:34:27,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 15:34:27,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 15:34:27,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 15:34:27,550 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 15:34:27,550 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 15:34:27,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 15:34:28,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 15:34:28,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 15:34:28,026 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 15:34:28,027 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 15:34:28,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label48.c [2020-10-27 15:34:28,124 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/576c81a98/6803d5fe49264ba0b9dc3ba3dc0ed318/FLAG557456cfa [2020-10-27 15:34:28,860 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 15:34:28,861 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label48.c [2020-10-27 15:34:28,876 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/576c81a98/6803d5fe49264ba0b9dc3ba3dc0ed318/FLAG557456cfa [2020-10-27 15:34:29,122 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/576c81a98/6803d5fe49264ba0b9dc3ba3dc0ed318 [2020-10-27 15:34:29,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 15:34:29,137 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 15:34:29,141 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 15:34:29,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 15:34:29,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 15:34:29,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:34:29" (1/1) ... [2020-10-27 15:34:29,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@81588b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:29, skipping insertion in model container [2020-10-27 15:34:29,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:34:29" (1/1) ... [2020-10-27 15:34:29,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 15:34:29,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 15:34:29,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:34:29,844 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 15:34:30,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:34:30,036 INFO L208 MainTranslator]: Completed translation [2020-10-27 15:34:30,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:30 WrapperNode [2020-10-27 15:34:30,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 15:34:30,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 15:34:30,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 15:34:30,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 15:34:30,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:30" (1/1) ... [2020-10-27 15:34:30,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:30" (1/1) ... [2020-10-27 15:34:30,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:30" (1/1) ... [2020-10-27 15:34:30,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:30" (1/1) ... [2020-10-27 15:34:30,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:30" (1/1) ... [2020-10-27 15:34:30,236 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:30" (1/1) ... [2020-10-27 15:34:30,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:30" (1/1) ... [2020-10-27 15:34:30,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 15:34:30,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 15:34:30,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 15:34:30,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 15:34:30,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:30" (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 [2020-10-27 15:34:30,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 15:34:30,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 15:34:30,327 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 15:34:30,327 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-27 15:34:30,327 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 15:34:30,328 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-27 15:34:30,328 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 15:34:30,328 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 15:34:30,328 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 15:34:30,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 15:34:30,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 15:34:30,329 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 15:34:30,329 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 15:34:30,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 15:34:30,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 15:34:30,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 15:34:30,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 15:34:30,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 15:34:30,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 15:34:31,646 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 15:34:31,646 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 15:34:31,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:34:31 BoogieIcfgContainer [2020-10-27 15:34:31,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 15:34:31,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 15:34:31,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 15:34:31,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 15:34:31,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:34:29" (1/3) ... [2020-10-27 15:34:31,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed7a284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:34:31, skipping insertion in model container [2020-10-27 15:34:31,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:30" (2/3) ... [2020-10-27 15:34:31,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed7a284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:34:31, skipping insertion in model container [2020-10-27 15:34:31,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:34:31" (3/3) ... [2020-10-27 15:34:31,659 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label48.c [2020-10-27 15:34:31,671 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 15:34:31,677 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 15:34:31,691 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 15:34:31,722 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 15:34:31,722 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 15:34:31,722 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 15:34:31,722 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 15:34:31,722 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 15:34:31,723 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 15:34:31,723 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 15:34:31,723 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 15:34:31,747 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-27 15:34:31,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-27 15:34:31,762 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:34:31,763 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] [2020-10-27 15:34:31,764 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:34:31,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:34:31,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1187390447, now seen corresponding path program 1 times [2020-10-27 15:34:31,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:34:31,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1056241206] [2020-10-27 15:34:31,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:34:32,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:32,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:32,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:34,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:34,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-27 15:34:34,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:34:34,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2646 [2020-10-27 15:34:34,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:34,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 15:34:34,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 15:34:34,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 15:34:34,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 15:34:35,482 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-10-27 15:34:35,661 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 43 [2020-10-27 15:34:35,807 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 39 [2020-10-27 15:34:35,933 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 36 [2020-10-27 15:34:36,076 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 33 [2020-10-27 15:34:36,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:34:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:36,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:36,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:36,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:34:36,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:34:36,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 15:34:36,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:36,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:34:36,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:34:36,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 15:34:36,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:34:36,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:34:36,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1056241206] [2020-10-27 15:34:36,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:34:36,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 15:34:36,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646181422] [2020-10-27 15:34:36,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 15:34:36,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:34:36,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 15:34:36,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-27 15:34:36,558 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 12 states. [2020-10-27 15:34:36,792 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 15:34:37,006 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 15:34:37,215 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 15:34:37,463 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-27 15:34:37,920 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 141 [2020-10-27 15:34:38,356 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 138 [2020-10-27 15:34:39,039 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 135 [2020-10-27 15:34:39,781 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 132 [2020-10-27 15:34:40,296 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 127 [2020-10-27 15:34:41,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:34:41,476 INFO L93 Difference]: Finished difference Result 479 states and 799 transitions. [2020-10-27 15:34:41,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 15:34:41,478 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 128 [2020-10-27 15:34:41,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:34:41,492 INFO L225 Difference]: With dead ends: 479 [2020-10-27 15:34:41,492 INFO L226 Difference]: Without dead ends: 206 [2020-10-27 15:34:41,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2020-10-27 15:34:41,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-27 15:34:41,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-10-27 15:34:41,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-27 15:34:41,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 278 transitions. [2020-10-27 15:34:41,568 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 278 transitions. Word has length 128 [2020-10-27 15:34:41,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:34:41,569 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 278 transitions. [2020-10-27 15:34:41,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 15:34:41,569 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 278 transitions. [2020-10-27 15:34:41,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-27 15:34:41,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:34:41,574 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-27 15:34:41,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 15:34:41,575 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:34:41,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:34:41,576 INFO L82 PathProgramCache]: Analyzing trace with hash 13485871, now seen corresponding path program 1 times [2020-10-27 15:34:41,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:34:41,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [468386692] [2020-10-27 15:34:41,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:34:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:41,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:42,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:42,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:43,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:43,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-27 15:34:43,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:34:43,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1794 [2020-10-27 15:34:43,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:43,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 15:34:43,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 15:34:43,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 15:34:43,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:34:44,018 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-10-27 15:34:44,194 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-27 15:34:44,423 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 52 [2020-10-27 15:34:44,664 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 49 [2020-10-27 15:34:44,867 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 45 [2020-10-27 15:34:45,083 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 41 [2020-10-27 15:34:45,263 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 35 [2020-10-27 15:34:45,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:34:45,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:45,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:45,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:45,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:34:45,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:34:45,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 15:34:45,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:45,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:34:45,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:34:45,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:34:45,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:34:45,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:34:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:45,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:45,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:45,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:34:45,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:34:45,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 15:34:45,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:45,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:34:45,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:34:45,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 15:34:45,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:34:45,666 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:34:45,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [468386692] [2020-10-27 15:34:45,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:34:45,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 15:34:45,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210575] [2020-10-27 15:34:45,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 15:34:45,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:34:45,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 15:34:45,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-27 15:34:45,670 INFO L87 Difference]: Start difference. First operand 206 states and 278 transitions. Second operand 13 states. [2020-10-27 15:34:46,072 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-27 15:34:46,301 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-27 15:34:47,021 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 144 [2020-10-27 15:34:48,122 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 141 [2020-10-27 15:34:48,690 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 138 [2020-10-27 15:34:48,917 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 15:34:49,387 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 135 [2020-10-27 15:34:49,793 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 130 [2020-10-27 15:34:49,978 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 15:34:50,184 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-27 15:34:50,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:34:50,604 INFO L93 Difference]: Finished difference Result 435 states and 639 transitions. [2020-10-27 15:34:50,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 15:34:50,605 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 136 [2020-10-27 15:34:50,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:34:50,612 INFO L225 Difference]: With dead ends: 435 [2020-10-27 15:34:50,613 INFO L226 Difference]: Without dead ends: 295 [2020-10-27 15:34:50,617 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-27 15:34:50,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-10-27 15:34:50,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 277. [2020-10-27 15:34:50,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-10-27 15:34:50,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 356 transitions. [2020-10-27 15:34:50,671 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 356 transitions. Word has length 136 [2020-10-27 15:34:50,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:34:50,674 INFO L481 AbstractCegarLoop]: Abstraction has 277 states and 356 transitions. [2020-10-27 15:34:50,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 15:34:50,674 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 356 transitions. [2020-10-27 15:34:50,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-27 15:34:50,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:34:50,683 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:34:50,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 15:34:50,684 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:34:50,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:34:50,685 INFO L82 PathProgramCache]: Analyzing trace with hash 2094275598, now seen corresponding path program 1 times [2020-10-27 15:34:50,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:34:50,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [605389693] [2020-10-27 15:34:50,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:34:50,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:50,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:50,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:51,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:51,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-27 15:34:51,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:34:51,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-10-27 15:34:51,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:51,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:34:51,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-27 15:34:51,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-27 15:34:51,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:34:51,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:34:51,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:51,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:51,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:51,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:34:51,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:34:51,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 15:34:51,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:51,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:34:51,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:34:51,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:34:51,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:34:51,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:34:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:51,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:51,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:51,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 15:34:51,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:34:51,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 15:34:51,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:51,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:34:51,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:34:51,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:34:51,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:34:51,326 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:34:51,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [605389693] [2020-10-27 15:34:51,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:34:51,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:34:51,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008696213] [2020-10-27 15:34:51,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:34:51,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:34:51,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:34:51,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:34:51,338 INFO L87 Difference]: Start difference. First operand 277 states and 356 transitions. Second operand 5 states. [2020-10-27 15:34:52,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:34:52,612 INFO L93 Difference]: Finished difference Result 627 states and 852 transitions. [2020-10-27 15:34:52,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:34:52,613 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 139 [2020-10-27 15:34:52,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:34:52,617 INFO L225 Difference]: With dead ends: 627 [2020-10-27 15:34:52,618 INFO L226 Difference]: Without dead ends: 416 [2020-10-27 15:34:52,619 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:34:52,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-10-27 15:34:52,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 414. [2020-10-27 15:34:52,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2020-10-27 15:34:52,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 521 transitions. [2020-10-27 15:34:52,670 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 521 transitions. Word has length 139 [2020-10-27 15:34:52,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:34:52,672 INFO L481 AbstractCegarLoop]: Abstraction has 414 states and 521 transitions. [2020-10-27 15:34:52,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:34:52,673 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 521 transitions. [2020-10-27 15:34:52,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-27 15:34:52,677 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:34:52,677 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2020-10-27 15:34:52,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 15:34:52,677 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:34:52,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:34:52,678 INFO L82 PathProgramCache]: Analyzing trace with hash 114636565, now seen corresponding path program 1 times [2020-10-27 15:34:52,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:34:52,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442129472] [2020-10-27 15:34:52,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:34:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:52,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:52,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:53,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:55,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:57,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:57,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-27 15:34:57,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:34:57,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 15:34:57,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:57,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:34:57,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-27 15:34:57,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-27 15:34:57,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:34:57,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:34:57,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:57,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:57,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:57,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:34:57,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:34:57,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 15:34:57,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:57,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:34:57,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:34:57,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:34:57,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:34:57,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:34:57,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:57,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:57,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:57,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 15:34:57,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:34:57,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:34:57,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:57,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:34:57,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:34:57,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:34:57,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:34:57,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 15:34:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:57,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:57,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:57,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 15:34:57,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:34:57,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 15:34:57,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:57,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:34:57,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:34:57,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 15:34:57,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 15:34:58,006 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-27 15:34:58,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442129472] [2020-10-27 15:34:58,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:34:58,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:34:58,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546316278] [2020-10-27 15:34:58,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:34:58,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:34:58,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:34:58,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:34:58,011 INFO L87 Difference]: Start difference. First operand 414 states and 521 transitions. Second operand 5 states. [2020-10-27 15:34:59,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:34:59,342 INFO L93 Difference]: Finished difference Result 1040 states and 1350 transitions. [2020-10-27 15:34:59,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:34:59,342 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-10-27 15:34:59,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:34:59,348 INFO L225 Difference]: With dead ends: 1040 [2020-10-27 15:34:59,348 INFO L226 Difference]: Without dead ends: 692 [2020-10-27 15:34:59,349 INFO L677 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 [2020-10-27 15:34:59,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2020-10-27 15:34:59,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 553. [2020-10-27 15:34:59,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2020-10-27 15:34:59,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 720 transitions. [2020-10-27 15:34:59,380 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 720 transitions. Word has length 148 [2020-10-27 15:34:59,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:34:59,381 INFO L481 AbstractCegarLoop]: Abstraction has 553 states and 720 transitions. [2020-10-27 15:34:59,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:34:59,381 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 720 transitions. [2020-10-27 15:34:59,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-27 15:34:59,384 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:34:59,385 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2020-10-27 15:34:59,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 15:34:59,385 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:34:59,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:34:59,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1804654948, now seen corresponding path program 1 times [2020-10-27 15:34:59,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:34:59,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679970820] [2020-10-27 15:34:59,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:34:59,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:59,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:59,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:59,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:00,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:01,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:01,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-27 15:35:01,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:35:01,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2330 [2020-10-27 15:35:01,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:01,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:01,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-27 15:35:01,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-27 15:35:01,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:01,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:01,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:01,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:01,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:01,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:01,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:01,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 15:35:01,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:01,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:01,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:01,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:01,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:35:01,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:02,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:02,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:02,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:02,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 15:35:02,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:02,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:35:02,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:02,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:02,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:02,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:02,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:02,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 15:35:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:02,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:02,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:02,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 15:35:02,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:02,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 15:35:02,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:02,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:02,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:02,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 15:35:02,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:02,193 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-27 15:35:02,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679970820] [2020-10-27 15:35:02,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:02,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:35:02,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696437623] [2020-10-27 15:35:02,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:35:02,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:02,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:35:02,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:35:02,196 INFO L87 Difference]: Start difference. First operand 553 states and 720 transitions. Second operand 5 states. [2020-10-27 15:35:03,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:03,570 INFO L93 Difference]: Finished difference Result 1126 states and 1526 transitions. [2020-10-27 15:35:03,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:35:03,571 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 151 [2020-10-27 15:35:03,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:03,576 INFO L225 Difference]: With dead ends: 1126 [2020-10-27 15:35:03,576 INFO L226 Difference]: Without dead ends: 557 [2020-10-27 15:35:03,578 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:35:03,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2020-10-27 15:35:03,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 553. [2020-10-27 15:35:03,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2020-10-27 15:35:03,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 717 transitions. [2020-10-27 15:35:03,615 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 717 transitions. Word has length 151 [2020-10-27 15:35:03,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:03,615 INFO L481 AbstractCegarLoop]: Abstraction has 553 states and 717 transitions. [2020-10-27 15:35:03,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:35:03,615 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 717 transitions. [2020-10-27 15:35:03,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-27 15:35:03,619 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:03,619 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2020-10-27 15:35:03,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 15:35:03,620 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:03,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:03,620 INFO L82 PathProgramCache]: Analyzing trace with hash 2127501957, now seen corresponding path program 1 times [2020-10-27 15:35:03,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:03,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667651475] [2020-10-27 15:35:03,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:03,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:03,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:03,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:05,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:06,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:06,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-27 15:35:06,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:35:06,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2432 [2020-10-27 15:35:06,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:06,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:06,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-27 15:35:06,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-27 15:35:06,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:06,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:06,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:06,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:06,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:06,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:06,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:35:06,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:06,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:06,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:06,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:06,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:06,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:06,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:06,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:06,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:06,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 15:35:06,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:06,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:35:06,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:06,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:06,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:06,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:06,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:06,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 15:35:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:06,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:06,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:06,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 15:35:06,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:06,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 15:35:06,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:06,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:06,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:06,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 15:35:06,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:06,322 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-27 15:35:06,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667651475] [2020-10-27 15:35:06,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:06,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:35:06,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301369412] [2020-10-27 15:35:06,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:35:06,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:06,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:35:06,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:35:06,325 INFO L87 Difference]: Start difference. First operand 553 states and 717 transitions. Second operand 5 states. [2020-10-27 15:35:07,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:07,676 INFO L93 Difference]: Finished difference Result 1457 states and 1965 transitions. [2020-10-27 15:35:07,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:35:07,677 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-10-27 15:35:07,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:07,683 INFO L225 Difference]: With dead ends: 1457 [2020-10-27 15:35:07,683 INFO L226 Difference]: Without dead ends: 970 [2020-10-27 15:35:07,685 INFO L677 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 [2020-10-27 15:35:07,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-10-27 15:35:07,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 968. [2020-10-27 15:35:07,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 968 states. [2020-10-27 15:35:07,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1239 transitions. [2020-10-27 15:35:07,726 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1239 transitions. Word has length 156 [2020-10-27 15:35:07,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:07,727 INFO L481 AbstractCegarLoop]: Abstraction has 968 states and 1239 transitions. [2020-10-27 15:35:07,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:35:07,727 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1239 transitions. [2020-10-27 15:35:07,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-27 15:35:07,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:07,732 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:07,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 15:35:07,732 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:07,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:07,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1133646074, now seen corresponding path program 1 times [2020-10-27 15:35:07,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:07,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [693371046] [2020-10-27 15:35:07,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:07,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:07,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:07,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:10,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:12,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:12,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-27 15:35:12,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:35:12,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-27 15:35:12,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:12,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 15:35:12,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-27 15:35:12,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 15:35:12,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:13,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:13,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:13,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:13,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:13,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:13,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 15:35:13,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:13,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:13,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:13,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:13,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:13,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:13,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:13,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:13,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:13,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 15:35:13,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:13,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:35:13,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:13,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:13,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:13,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:13,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 15:35:13,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 15:35:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:13,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:13,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:13,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 15:35:13,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:13,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:35:13,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:13,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:13,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:13,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:13,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:13,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 15:35:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:13,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:13,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:13,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 15:35:13,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:13,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-27 15:35:13,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:13,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:13,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:13,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 15:35:13,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:35:13,606 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-27 15:35:13,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [693371046] [2020-10-27 15:35:13,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:13,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 15:35:13,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170364599] [2020-10-27 15:35:13,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 15:35:13,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:13,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 15:35:13,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-27 15:35:13,615 INFO L87 Difference]: Start difference. First operand 968 states and 1239 transitions. Second operand 13 states. [2020-10-27 15:35:14,155 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 15:35:14,326 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 15:35:14,881 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 120 [2020-10-27 15:35:15,437 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 119 [2020-10-27 15:35:15,801 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 118 [2020-10-27 15:35:16,161 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 117 [2020-10-27 15:35:16,696 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 115 [2020-10-27 15:35:16,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:16,996 INFO L93 Difference]: Finished difference Result 1934 states and 2534 transitions. [2020-10-27 15:35:16,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 15:35:16,999 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 167 [2020-10-27 15:35:16,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:17,006 INFO L225 Difference]: With dead ends: 1934 [2020-10-27 15:35:17,006 INFO L226 Difference]: Without dead ends: 1032 [2020-10-27 15:35:17,009 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-27 15:35:17,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2020-10-27 15:35:17,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 1030. [2020-10-27 15:35:17,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1030 states. [2020-10-27 15:35:17,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1315 transitions. [2020-10-27 15:35:17,059 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1315 transitions. Word has length 167 [2020-10-27 15:35:17,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:17,059 INFO L481 AbstractCegarLoop]: Abstraction has 1030 states and 1315 transitions. [2020-10-27 15:35:17,059 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 15:35:17,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1315 transitions. [2020-10-27 15:35:17,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-27 15:35:17,065 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:17,065 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:17,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 15:35:17,065 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:17,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:17,066 INFO L82 PathProgramCache]: Analyzing trace with hash -84883181, now seen corresponding path program 1 times [2020-10-27 15:35:17,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:17,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1098355580] [2020-10-27 15:35:17,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:17,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:17,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:17,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:18,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:22,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:22,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-27 15:35:22,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:35:22,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-27 15:35:22,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:22,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 15:35:22,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-27 15:35:22,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 15:35:22,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:22,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:22,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:22,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:22,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:22,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:22,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:22,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:35:22,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:22,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:22,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:22,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:22,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:22,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:22,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:22,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:22,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 15:35:22,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:22,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:35:22,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:22,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:22,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:22,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:22,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:22,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 15:35:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:22,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:22,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:22,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 15:35:22,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:22,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:35:22,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:22,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:22,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:22,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:22,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:22,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 15:35:22,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:22,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:22,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:22,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 15:35:22,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:22,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 15:35:22,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:22,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:22,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:22,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 15:35:22,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:22,877 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 38 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-27 15:35:22,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1098355580] [2020-10-27 15:35:22,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:22,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 15:35:22,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855038411] [2020-10-27 15:35:22,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 15:35:22,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:22,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 15:35:22,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-27 15:35:22,881 INFO L87 Difference]: Start difference. First operand 1030 states and 1315 transitions. Second operand 13 states. [2020-10-27 15:35:23,093 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 15:35:23,252 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 15:35:23,547 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 15:35:24,147 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 15:35:24,425 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 15:35:24,700 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 15:35:24,879 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 15:35:25,109 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-27 15:35:25,322 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-27 15:35:25,494 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 15:35:25,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:25,786 INFO L93 Difference]: Finished difference Result 2170 states and 2872 transitions. [2020-10-27 15:35:25,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 15:35:25,787 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 172 [2020-10-27 15:35:25,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:25,794 INFO L225 Difference]: With dead ends: 2170 [2020-10-27 15:35:25,794 INFO L226 Difference]: Without dead ends: 1206 [2020-10-27 15:35:25,798 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2020-10-27 15:35:25,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2020-10-27 15:35:25,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1103. [2020-10-27 15:35:25,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1103 states. [2020-10-27 15:35:25,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1395 transitions. [2020-10-27 15:35:25,842 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1395 transitions. Word has length 172 [2020-10-27 15:35:25,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:25,842 INFO L481 AbstractCegarLoop]: Abstraction has 1103 states and 1395 transitions. [2020-10-27 15:35:25,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 15:35:25,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1395 transitions. [2020-10-27 15:35:25,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-27 15:35:25,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:25,847 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:25,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 15:35:25,848 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:25,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:25,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1671524555, now seen corresponding path program 1 times [2020-10-27 15:35:25,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:25,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [716110118] [2020-10-27 15:35:25,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:25,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:25,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:25,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:25,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:26,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:30,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:30,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-27 15:35:30,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:35:30,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-27 15:35:30,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:30,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 15:35:30,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-27 15:35:30,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 15:35:30,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:35:31,496 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 39 [2020-10-27 15:35:31,646 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 37 [2020-10-27 15:35:31,828 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 35 [2020-10-27 15:35:31,973 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 34 [2020-10-27 15:35:32,127 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 31 [2020-10-27 15:35:32,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:32,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:32,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:32,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:32,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:32,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:35:32,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:32,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:32,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:32,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:32,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:32,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:32,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:32,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:32,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 15:35:32,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:32,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:35:32,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:32,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:32,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:32,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:32,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:32,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 15:35:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:32,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:32,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:32,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 15:35:32,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:32,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:35:32,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:32,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:32,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:32,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:32,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:32,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 15:35:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:32,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:32,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:32,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 15:35:32,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:32,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 15:35:32,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:32,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:32,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:32,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 15:35:32,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:32,434 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 42 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-27 15:35:32,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [716110118] [2020-10-27 15:35:32,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:32,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 15:35:32,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414663193] [2020-10-27 15:35:32,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 15:35:32,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:32,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 15:35:32,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-27 15:35:32,436 INFO L87 Difference]: Start difference. First operand 1103 states and 1395 transitions. Second operand 13 states. [2020-10-27 15:35:32,954 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 15:35:33,163 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 15:35:33,798 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 123 [2020-10-27 15:35:34,358 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 122 [2020-10-27 15:35:34,756 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 121 [2020-10-27 15:35:35,156 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 120 [2020-10-27 15:35:35,711 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 118 [2020-10-27 15:35:35,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:35,975 INFO L93 Difference]: Finished difference Result 2204 states and 2846 transitions. [2020-10-27 15:35:35,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 15:35:35,976 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 176 [2020-10-27 15:35:35,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:35,984 INFO L225 Difference]: With dead ends: 2204 [2020-10-27 15:35:35,984 INFO L226 Difference]: Without dead ends: 1167 [2020-10-27 15:35:35,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-27 15:35:35,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2020-10-27 15:35:36,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 1101. [2020-10-27 15:35:36,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1101 states. [2020-10-27 15:35:36,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1101 states to 1101 states and 1390 transitions. [2020-10-27 15:35:36,032 INFO L78 Accepts]: Start accepts. Automaton has 1101 states and 1390 transitions. Word has length 176 [2020-10-27 15:35:36,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:36,032 INFO L481 AbstractCegarLoop]: Abstraction has 1101 states and 1390 transitions. [2020-10-27 15:35:36,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 15:35:36,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1101 states and 1390 transitions. [2020-10-27 15:35:36,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-10-27 15:35:36,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:36,038 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:36,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 15:35:36,038 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:36,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:36,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1403185093, now seen corresponding path program 1 times [2020-10-27 15:35:36,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:36,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1556168258] [2020-10-27 15:35:36,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:36,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:36,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:36,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:37,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:41,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:41,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-10-27 15:35:41,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:35:41,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-27 15:35:41,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:41,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 15:35:41,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-27 15:35:41,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 15:35:41,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:41,491 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-10-27 15:35:41,708 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-27 15:35:41,980 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 51 [2020-10-27 15:35:42,210 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 47 [2020-10-27 15:35:42,440 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 44 [2020-10-27 15:35:42,655 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 40 [2020-10-27 15:35:42,842 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 34 [2020-10-27 15:35:42,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:42,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:42,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:42,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:42,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:42,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:35:42,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:42,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:42,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:42,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:42,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:42,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:42,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:42,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:42,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:42,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 15:35:42,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:42,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:35:42,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:42,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:42,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:42,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:42,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:42,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 15:35:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:42,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:42,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:42,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 15:35:42,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:42,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:35:42,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:42,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:42,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:42,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:42,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:43,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 15:35:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:43,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:43,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:43,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 15:35:43,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:43,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 15:35:43,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:43,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:43,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:43,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 15:35:43,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:43,388 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 50 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-27 15:35:43,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1556168258] [2020-10-27 15:35:43,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:43,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 15:35:43,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45854651] [2020-10-27 15:35:43,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 15:35:43,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:43,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 15:35:43,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-27 15:35:43,400 INFO L87 Difference]: Start difference. First operand 1101 states and 1390 transitions. Second operand 13 states. [2020-10-27 15:35:43,995 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 41 [2020-10-27 15:35:44,280 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-27 15:35:44,535 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-27 15:35:45,169 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 145 [2020-10-27 15:35:45,839 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 142 [2020-10-27 15:35:46,103 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2020-10-27 15:35:46,534 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 139 [2020-10-27 15:35:47,029 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 136 [2020-10-27 15:35:47,664 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 131 [2020-10-27 15:35:47,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:47,869 INFO L93 Difference]: Finished difference Result 2200 states and 2835 transitions. [2020-10-27 15:35:47,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 15:35:47,870 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 184 [2020-10-27 15:35:47,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:47,877 INFO L225 Difference]: With dead ends: 2200 [2020-10-27 15:35:47,877 INFO L226 Difference]: Without dead ends: 1165 [2020-10-27 15:35:47,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2020-10-27 15:35:47,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2020-10-27 15:35:47,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 1139. [2020-10-27 15:35:47,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1139 states. [2020-10-27 15:35:47,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1139 states to 1139 states and 1436 transitions. [2020-10-27 15:35:47,922 INFO L78 Accepts]: Start accepts. Automaton has 1139 states and 1436 transitions. Word has length 184 [2020-10-27 15:35:47,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:47,923 INFO L481 AbstractCegarLoop]: Abstraction has 1139 states and 1436 transitions. [2020-10-27 15:35:47,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 15:35:47,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1139 states and 1436 transitions. [2020-10-27 15:35:47,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-27 15:35:47,929 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:47,929 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, 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] [2020-10-27 15:35:47,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 15:35:47,929 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:47,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:47,930 INFO L82 PathProgramCache]: Analyzing trace with hash 83521241, now seen corresponding path program 1 times [2020-10-27 15:35:47,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:47,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913603438] [2020-10-27 15:35:47,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:48,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:48,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:48,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:49,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:49,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:51,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:51,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-10-27 15:35:51,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 15:35:51,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3265 [2020-10-27 15:35:51,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:51,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:51,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-27 15:35:51,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-27 15:35:51,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:51,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:51,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:51,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:51,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:51,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:51,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:35:51,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:51,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:51,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:51,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:51,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:51,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:51,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:51,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:51,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:51,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:35:51,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:51,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:35:51,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:51,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:51,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:51,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:51,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:51,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 15:35:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:51,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:51,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:51,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 15:35:51,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:51,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 15:35:51,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:51,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:51,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:51,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 15:35:51,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:51,513 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-27 15:35:51,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1913603438] [2020-10-27 15:35:51,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:51,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:35:51,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865526324] [2020-10-27 15:35:51,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:35:51,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:51,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:35:51,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:35:51,516 INFO L87 Difference]: Start difference. First operand 1139 states and 1436 transitions. Second operand 5 states. [2020-10-27 15:35:52,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:52,866 INFO L93 Difference]: Finished difference Result 3098 states and 4043 transitions. [2020-10-27 15:35:52,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:35:52,872 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 186 [2020-10-27 15:35:52,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:52,883 INFO L225 Difference]: With dead ends: 3098 [2020-10-27 15:35:52,884 INFO L226 Difference]: Without dead ends: 2025 [2020-10-27 15:35:52,887 INFO L677 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 [2020-10-27 15:35:52,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2025 states. [2020-10-27 15:35:52,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2025 to 1834. [2020-10-27 15:35:52,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1834 states. [2020-10-27 15:35:52,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 2372 transitions. [2020-10-27 15:35:52,950 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 2372 transitions. Word has length 186 [2020-10-27 15:35:52,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:52,951 INFO L481 AbstractCegarLoop]: Abstraction has 1834 states and 2372 transitions. [2020-10-27 15:35:52,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:35:52,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 2372 transitions. [2020-10-27 15:35:52,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-10-27 15:35:52,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:52,959 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:52,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 15:35:52,959 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:52,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:52,959 INFO L82 PathProgramCache]: Analyzing trace with hash -182042294, now seen corresponding path program 1 times [2020-10-27 15:35:52,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:52,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [720564190] [2020-10-27 15:35:52,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:52,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:53,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:53,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:54,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:57,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:57,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-10-27 15:35:57,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:35:57,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-27 15:35:57,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:58,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 15:35:58,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-27 15:35:58,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 15:35:58,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:58,434 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-27 15:35:58,574 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-27 15:35:58,700 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2020-10-27 15:35:59,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:59,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:59,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:59,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:59,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:59,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:59,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:35:59,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:59,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:59,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:59,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:59,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:59,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:59,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:59,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:59,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 15:35:59,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:59,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:35:59,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:59,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:59,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:59,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:59,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:59,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 15:35:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:59,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:59,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:59,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 15:35:59,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:59,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:35:59,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:59,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:59,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:59,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:59,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:59,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 15:35:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:59,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:59,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:59,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-27 15:35:59,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:59,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-27 15:35:59,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:59,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:59,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:59,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-27 15:35:59,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:59,404 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 73 proven. 3 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-27 15:35:59,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [720564190] [2020-10-27 15:35:59,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:59,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-27 15:35:59,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813898457] [2020-10-27 15:35:59,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 15:35:59,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:59,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 15:35:59,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-27 15:35:59,406 INFO L87 Difference]: Start difference. First operand 1834 states and 2372 transitions. Second operand 14 states. [2020-10-27 15:36:00,268 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 125 [2020-10-27 15:36:00,702 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 145 [2020-10-27 15:36:01,154 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 142 [2020-10-27 15:36:01,584 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 139 [2020-10-27 15:36:02,587 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 136 [2020-10-27 15:36:03,089 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 133 [2020-10-27 15:36:03,585 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 128 [2020-10-27 15:36:03,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:36:03,875 INFO L93 Difference]: Finished difference Result 3585 states and 4730 transitions. [2020-10-27 15:36:03,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 15:36:03,875 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 207 [2020-10-27 15:36:03,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:36:03,885 INFO L225 Difference]: With dead ends: 3585 [2020-10-27 15:36:03,885 INFO L226 Difference]: Without dead ends: 1817 [2020-10-27 15:36:03,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=182, Invalid=418, Unknown=0, NotChecked=0, Total=600 [2020-10-27 15:36:03,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1817 states. [2020-10-27 15:36:03,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1817 to 1768. [2020-10-27 15:36:03,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1768 states. [2020-10-27 15:36:03,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1768 states to 1768 states and 2247 transitions. [2020-10-27 15:36:03,951 INFO L78 Accepts]: Start accepts. Automaton has 1768 states and 2247 transitions. Word has length 207 [2020-10-27 15:36:03,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:36:03,952 INFO L481 AbstractCegarLoop]: Abstraction has 1768 states and 2247 transitions. [2020-10-27 15:36:03,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 15:36:03,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1768 states and 2247 transitions. [2020-10-27 15:36:03,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-10-27 15:36:03,960 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:36:03,961 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:36:03,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 15:36:03,961 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:36:03,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:36:03,961 INFO L82 PathProgramCache]: Analyzing trace with hash -2105586617, now seen corresponding path program 1 times [2020-10-27 15:36:03,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:36:03,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1929071482] [2020-10-27 15:36:03,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:36:03,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:36:04,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:04,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:04,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:05,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:05,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:07,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:36:07,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-27 15:36:07,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 15:36:07,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3472 [2020-10-27 15:36:07,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:36:07,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:36:07,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 112 [2020-10-27 15:36:07,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-27 15:36:07,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:36:07,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:36:07,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:36:07,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:07,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:36:07,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:36:07,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:36:07,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 15:36:07,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:36:07,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:36:07,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:36:07,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:36:07,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:36:07,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:36:07,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:36:07,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:07,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:36:07,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 15:36:07,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:36:07,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:36:07,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:36:07,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:36:07,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:36:07,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:36:07,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:36:07,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 15:36:07,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:36:07,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:07,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:36:07,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 15:36:07,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:36:07,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:36:07,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:36:07,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:36:07,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:36:07,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:36:07,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:36:07,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 15:36:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:36:07,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:36:07,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:36:07,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 15:36:07,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:36:07,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-27 15:36:07,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:36:07,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:36:07,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:36:07,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-27 15:36:07,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:36:08,044 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 92 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-27 15:36:08,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1929071482] [2020-10-27 15:36:08,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:36:08,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:36:08,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514069923] [2020-10-27 15:36:08,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:36:08,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:36:08,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:36:08,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:36:08,047 INFO L87 Difference]: Start difference. First operand 1768 states and 2247 transitions. Second operand 5 states. [2020-10-27 15:36:08,846 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 15:36:09,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:36:09,385 INFO L93 Difference]: Finished difference Result 3405 states and 4356 transitions. [2020-10-27 15:36:09,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:36:09,389 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 226 [2020-10-27 15:36:09,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:36:09,389 INFO L225 Difference]: With dead ends: 3405 [2020-10-27 15:36:09,389 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 15:36:09,397 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:36:09,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 15:36:09,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 15:36:09,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 15:36:09,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 15:36:09,398 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 226 [2020-10-27 15:36:09,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:36:09,398 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 15:36:09,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:36:09,398 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 15:36:09,398 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 15:36:09,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 15:36:09,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 15:36:09,847 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 132 [2020-10-27 15:36:10,249 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 40 [2020-10-27 15:36:12,265 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 282 DAG size of output: 159 [2020-10-27 15:36:12,708 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 97 [2020-10-27 15:36:13,168 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 119 [2020-10-27 15:36:13,510 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 68 [2020-10-27 15:36:13,514 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-27 15:36:13,515 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-27 15:36:13,515 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-27 15:36:13,515 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-27 15:36:13,515 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 15:36:13,516 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-27 15:36:13,516 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 15:36:13,516 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,516 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,516 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,516 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,516 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,517 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,517 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-27 15:36:13,517 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-27 15:36:13,517 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-27 15:36:13,517 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-27 15:36:13,517 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-27 15:36:13,517 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-27 15:36:13,517 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-27 15:36:13,517 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-27 15:36:13,517 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-27 15:36:13,518 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-27 15:36:13,518 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-27 15:36:13,518 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-27 15:36:13,518 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,518 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,518 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,518 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,518 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,518 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,518 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-27 15:36:13,519 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-27 15:36:13,519 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-27 15:36:13,519 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-27 15:36:13,519 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-27 15:36:13,519 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-27 15:36:13,519 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-27 15:36:13,519 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-27 15:36:13,519 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-27 15:36:13,519 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-27 15:36:13,519 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,519 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,519 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,519 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,519 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,519 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,519 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-27 15:36:13,519 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-27 15:36:13,520 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-27 15:36:13,520 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-27 15:36:13,520 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-27 15:36:13,520 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-27 15:36:13,520 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-27 15:36:13,520 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-27 15:36:13,520 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-27 15:36:13,520 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-27 15:36:13,520 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-27 15:36:13,520 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-27 15:36:13,520 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-27 15:36:13,520 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-27 15:36:13,521 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-27 15:36:13,521 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,521 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,521 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,521 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,521 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,521 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-27 15:36:13,521 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-27 15:36:13,521 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-27 15:36:13,522 INFO L270 CegarLoopResult]: At program point L541(line 541) the Hoare annotation is: (let ((.cse2 (not (= 6 |old(~a16~0)|))) (.cse6 (= |old(~a20~0)| 1)) (.cse0 (not (= |old(~a17~0)| 1))) (.cse1 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (or (not (<= |calculate_output_#in~input| 2)) (not (<= 2 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1))))) (.cse7 (not (= 5 |old(~a16~0)|))) (.cse3 (not (= 15 |old(~a8~0)|))) (.cse4 (not (= |old(~a21~0)| 1))) (.cse9 (not (= |old(~a7~0)| 0))) (.cse8 (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 2)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6)))) (.cse5 (not (= ~a12~0 8)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (not (<= |old(~a20~0)| 0))) (or .cse0 .cse6 .cse7 .cse8 .cse3 .cse4 .cse5) (or (not (= |old(~a8~0)| 13)) (not (= |old(~a17~0)| |old(~a20~0)|)) .cse2 (not .cse6) (not (= |old(~a20~0)| |old(~a21~0)|)) .cse5 .cse9) (or .cse0 .cse1 .cse7 .cse3 .cse4 .cse5 .cse9) (not (= |old(~a7~0)| 1)) (or (and (not (<= 2 |old(~a17~0)|)) (not (<= |old(~a17~0)| 0))) (not (<= |old(~a16~0)| 6)) (not (<= |old(~a8~0)| 15)) (not (< 5 |old(~a16~0)|)) (not (<= |old(~a21~0)| 1)) (not (<= 15 |old(~a8~0)|)) (not (<= 1 |old(~a21~0)|)) .cse8 .cse5 (not (< 0 |old(~a20~0)|)) (not (<= |old(~a20~0)| 1))) (not (= 4 |old(~a16~0)|)) (not (= 0 |old(~a17~0)|)))) [2020-10-27 15:36:13,522 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-27 15:36:13,522 INFO L274 CegarLoopResult]: For program point L541-1(line 541) no Hoare annotation was computed. [2020-10-27 15:36:13,522 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-27 15:36:13,522 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-27 15:36:13,522 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-27 15:36:13,522 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-27 15:36:13,522 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,522 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,522 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,522 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,523 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,523 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-27 15:36:13,523 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-27 15:36:13,523 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-27 15:36:13,523 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-27 15:36:13,523 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-27 15:36:13,523 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-27 15:36:13,523 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-27 15:36:13,523 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-27 15:36:13,523 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-27 15:36:13,523 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-27 15:36:13,523 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-27 15:36:13,524 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-27 15:36:13,524 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-27 15:36:13,524 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,524 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,524 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,524 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,524 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,524 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-27 15:36:13,524 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-27 15:36:13,524 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-27 15:36:13,524 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,524 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,525 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-27 15:36:13,525 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-27 15:36:13,525 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-27 15:36:13,525 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-27 15:36:13,525 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-27 15:36:13,525 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-27 15:36:13,525 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,526 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,526 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,526 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,526 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-27 15:36:13,526 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,526 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-27 15:36:13,526 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-27 15:36:13,527 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-27 15:36:13,527 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-27 15:36:13,527 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-27 15:36:13,527 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-27 15:36:13,527 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-27 15:36:13,527 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-27 15:36:13,527 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-27 15:36:13,527 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-27 15:36:13,527 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-27 15:36:13,527 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-27 15:36:13,527 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-27 15:36:13,527 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,527 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,527 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,528 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,528 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,528 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-27 15:36:13,528 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-27 15:36:13,528 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-27 15:36:13,528 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-27 15:36:13,528 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-27 15:36:13,528 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-27 15:36:13,528 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-27 15:36:13,528 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-27 15:36:13,528 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,529 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,529 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse4 (= ~a7~0 |old(~a7~0)|)) (.cse5 (= ~a17~0 |old(~a17~0)|)) (.cse17 (= ~a21~0 |old(~a21~0)|)) (.cse7 (= ~a20~0 |old(~a20~0)|)) (.cse8 (= ~a16~0 |old(~a16~0)|)) (.cse18 (= ~a8~0 |old(~a8~0)|))) (let ((.cse0 (and .cse4 .cse5 .cse17 .cse7 .cse8 .cse18)) (.cse2 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (or (not (<= |calculate_output_#in~input| 2)) (not (<= 2 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1))))) (.cse3 (not (= 6 |old(~a16~0)|))) (.cse14 (= ~a7~0 0)) (.cse16 (not (= |old(~a7~0)| 0))) (.cse1 (not (= |old(~a17~0)| 1))) (.cse6 (= ~a21~0 1)) (.cse9 (= ~a8~0 15)) (.cse13 (= 5 ~a16~0)) (.cse20 (= |old(~a20~0)| 1)) (.cse15 (not (= 5 |old(~a16~0)|))) (.cse19 (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 2)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6)))) (.cse10 (not (= 15 |old(~a8~0)|))) (.cse11 (not (= |old(~a21~0)| 1))) (.cse12 (not (= ~a12~0 8)))) (and (or .cse0 (not (= 0 |old(~a17~0)|))) (or .cse1 .cse2 .cse3 (and .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) .cse10 .cse11 .cse12 (not (<= |old(~a20~0)| 0))) (or (not (= |old(~a7~0)| 1)) .cse0) (or (and .cse5 .cse6 .cse7 .cse9 .cse13 .cse14) .cse1 .cse2 .cse15 .cse10 .cse11 .cse12 .cse16) (or (and .cse4 .cse5 .cse17 .cse7 .cse18 (= ~a16~0 4)) (not (= 4 |old(~a16~0)|))) (or (and (not (<= 2 |old(~a17~0)|)) (not (<= |old(~a17~0)| 0))) (not (<= |old(~a16~0)| 6)) (not (<= |old(~a8~0)| 15)) (not (< 5 |old(~a16~0)|)) (not (<= |old(~a21~0)| 1)) (not (<= 15 |old(~a8~0)|)) (not (<= 1 |old(~a21~0)|)) (and .cse5 .cse4 (<= ~a16~0 6) (< 5 ~a16~0) (< 0 ~a20~0) (<= ~a21~0 1) (<= ~a20~0 1) (<= 1 ~a21~0) (<= ~a8~0 15) (<= 15 ~a8~0)) .cse19 .cse12 (not (< 0 |old(~a20~0)|)) (not (<= |old(~a20~0)| 1))) (or (not (= |old(~a8~0)| 13)) (not (= |old(~a17~0)| |old(~a20~0)|)) .cse3 (not .cse20) (not (= |old(~a20~0)| |old(~a21~0)|)) (and .cse5 .cse7 .cse8 (= ~a8~0 13) (= ~a21~0 ~a20~0) .cse14) .cse12 .cse16) (or .cse1 (and .cse4 .cse5 .cse6 .cse7 .cse9 .cse13) .cse20 .cse15 .cse19 .cse10 .cse11 .cse12)))) [2020-10-27 15:36:13,529 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,529 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,529 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,530 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-27 15:36:13,530 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-27 15:36:13,530 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-27 15:36:13,530 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-27 15:36:13,530 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-27 15:36:13,530 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-27 15:36:13,530 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-27 15:36:13,530 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-27 15:36:13,530 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-27 15:36:13,530 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-27 15:36:13,530 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-27 15:36:13,530 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,530 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,531 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,531 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,531 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-27 15:36:13,531 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,531 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,531 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-27 15:36:13,531 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-27 15:36:13,531 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-27 15:36:13,531 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-27 15:36:13,531 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-27 15:36:13,531 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-27 15:36:13,531 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-27 15:36:13,531 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-27 15:36:13,532 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-27 15:36:13,532 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-27 15:36:13,532 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-27 15:36:13,532 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-27 15:36:13,532 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,532 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,532 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,532 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,532 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,532 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-27 15:36:13,532 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:36:13,532 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-27 15:36:13,532 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-27 15:36:13,533 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-27 15:36:13,533 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-27 15:36:13,533 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-27 15:36:13,533 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-27 15:36:13,533 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-27 15:36:13,533 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-27 15:36:13,533 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-27 15:36:13,533 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-27 15:36:13,533 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-27 15:36:13,533 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-27 15:36:13,533 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-27 15:36:13,533 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-27 15:36:13,533 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 15:36:13,534 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a12~0 8) (= ~a8~0 15) (= ~a20~0 1) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-27 15:36:13,534 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 15:36:13,534 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 15:36:13,534 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 15) (= 5 ~a16~0) (= ~a7~0 0)) (not (= |old(~a17~0)| 1)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a21~0)| 1)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-27 15:36:13,534 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-27 15:36:13,534 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse4 (= ~a7~0 0)) (.cse5 (= ~a16~0 6)) (.cse1 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 2 main_~input~0) (<= main_~input~0 2)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) (and (<= main_~input~0 1) (<= 1 main_~input~0)) (and (<= main_~input~0 5) (<= 5 main_~input~0)))) (.cse0 (= ~a21~0 1)) (.cse7 (or (= 5 main_~input~0) (= 6 main_~input~0) (= main_~input~0 4) (= 3 main_~input~0) (= main_~input~0 1) (= 2 main_~input~0))) (.cse2 (= ~a8~0 15)) (.cse3 (= 5 ~a16~0)) (.cse6 (= ~a20~0 1)) (.cse8 (= ~a17~0 1))) (or (= ~a7~0 1) (and (= ~a17~0 |old(~a17~0)|) .cse0 .cse1 .cse2 .cse3 .cse4) (not (= |old(~a20~0)| 1)) (and (= ~a20~0 ~a17~0) .cse5 (= ~a8~0 13) .cse6 (= ~a21~0 ~a20~0) .cse4) (not (= |old(~a21~0)| 1)) (and (<= ~a16~0 6) (<= 1 ~a20~0) (<= 6 ~a16~0) .cse7 (<= ~a21~0 1) (<= ~a20~0 1) (or (<= ~a17~0 0) (< 1 ~a17~0)) (<= 1 ~a21~0) (<= ~a8~0 15) (<= 15 ~a8~0)) (= ~a17~0 0) (and .cse0 .cse5 .cse1 .cse2 .cse8 (<= ~a20~0 0)) (not (= |old(~a17~0)| 1)) (and .cse0 .cse7 .cse2 .cse3 (not .cse6) .cse8) (= ~a16~0 4) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0)))) [2020-10-27 15:36:13,534 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-27 15:36:13,535 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-27 15:36:13,535 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse0 (= ~a16~0 6)) (.cse2 (= ~a7~0 0)) (.cse3 (= ~a21~0 1)) (.cse4 (= ~a8~0 15)) (.cse6 (= 5 ~a16~0)) (.cse1 (= ~a20~0 1)) (.cse5 (= ~a17~0 1))) (or (= ~a7~0 1) (not (= |old(~a20~0)| 1)) (and (= ~a20~0 ~a17~0) .cse0 (= ~a8~0 13) .cse1 (= ~a21~0 ~a20~0) .cse2) (and .cse3 .cse0 .cse4 .cse5 (<= ~a20~0 0)) (not (= |old(~a21~0)| 1)) (= ~a17~0 0) (not (= |old(~a17~0)| 1)) (and (= ~a17~0 |old(~a17~0)|) .cse3 .cse4 .cse6 .cse2) (and .cse3 .cse4 .cse6 (not .cse1) .cse5) (= ~a16~0 4) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= ~a12~0 8)) (and (<= ~a16~0 6) (<= 1 ~a20~0) (<= 6 ~a16~0) (<= ~a21~0 1) (<= ~a20~0 1) (or (<= ~a17~0 0) (< 1 ~a17~0)) (<= 1 ~a21~0) (<= ~a8~0 15) (<= 15 ~a8~0)) (not (= |old(~a7~0)| 0)))) [2020-10-27 15:36:13,535 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-27 15:36:13,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:36:13 BoogieIcfgContainer [2020-10-27 15:36:13,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 15:36:13,560 INFO L168 Benchmark]: Toolchain (without parser) took 104429.51 ms. Allocated memory was 158.3 MB in the beginning and 780.1 MB in the end (delta: 621.8 MB). Free memory was 132.2 MB in the beginning and 709.8 MB in the end (delta: -577.6 MB). Peak memory consumption was 471.4 MB. Max. memory is 8.0 GB. [2020-10-27 15:36:13,560 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 158.3 MB. Free memory is still 129.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 15:36:13,561 INFO L168 Benchmark]: CACSL2BoogieTranslator took 895.49 ms. Allocated memory is still 158.3 MB. Free memory was 131.7 MB in the beginning and 104.9 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-10-27 15:36:13,561 INFO L168 Benchmark]: Boogie Preprocessor took 209.93 ms. Allocated memory is still 158.3 MB. Free memory was 104.9 MB in the beginning and 136.0 MB in the end (delta: -31.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 8.0 GB. [2020-10-27 15:36:13,562 INFO L168 Benchmark]: RCFGBuilder took 1400.40 ms. Allocated memory was 158.3 MB in the beginning and 216.0 MB in the end (delta: 57.7 MB). Free memory was 136.0 MB in the beginning and 176.4 MB in the end (delta: -40.4 MB). Peak memory consumption was 88.5 MB. Max. memory is 8.0 GB. [2020-10-27 15:36:13,563 INFO L168 Benchmark]: TraceAbstraction took 101907.53 ms. Allocated memory was 216.0 MB in the beginning and 780.1 MB in the end (delta: 564.1 MB). Free memory was 175.9 MB in the beginning and 709.8 MB in the end (delta: -533.9 MB). Peak memory consumption was 455.4 MB. Max. memory is 8.0 GB. [2020-10-27 15:36:13,565 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 158.3 MB. Free memory is still 129.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 895.49 ms. Allocated memory is still 158.3 MB. Free memory was 131.7 MB in the beginning and 104.9 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 209.93 ms. Allocated memory is still 158.3 MB. Free memory was 104.9 MB in the beginning and 136.0 MB in the end (delta: -31.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1400.40 ms. Allocated memory was 158.3 MB in the beginning and 216.0 MB in the end (delta: 57.7 MB). Free memory was 136.0 MB in the beginning and 176.4 MB in the end (delta: -40.4 MB). Peak memory consumption was 88.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 101907.53 ms. Allocated memory was 216.0 MB in the beginning and 780.1 MB in the end (delta: 564.1 MB). Free memory was 175.9 MB in the beginning and 709.8 MB in the end (delta: -533.9 MB). Peak memory consumption was 455.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 585]: Loop Invariant Derived loop invariant: (((((((((((((a7 == 1 || !(\old(a20) == 1)) || (((((a20 == a17 && a16 == 6) && a8 == 13) && a20 == 1) && a21 == a20) && a7 == 0)) || ((((a21 == 1 && a16 == 6) && a8 == 15) && a17 == 1) && a20 <= 0)) || !(\old(a21) == 1)) || a17 == 0) || !(\old(a17) == 1)) || ((((a17 == \old(a17) && a21 == 1) && a8 == 15) && 5 == a16) && a7 == 0)) || ((((a21 == 1 && a8 == 15) && 5 == a16) && !(a20 == 1)) && a17 == 1)) || a16 == 4) || !(5 == \old(a16))) || !(15 == \old(a8))) || !(a12 == 8)) || ((((((((a16 <= 6 && 1 <= a20) && 6 <= a16) && a21 <= 1) && a20 <= 1) && (a17 <= 0 || 1 < a17)) && 1 <= a21) && a8 <= 15) && 15 <= a8)) || !(\old(a7) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 97.6s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 36.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 348 SDtfs, 3938 SDslu, 451 SDs, 0 SdLazy, 10426 SolverSat, 926 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 291 GetRequests, 115 SyntacticMatches, 9 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 25.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1834occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 602 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 233 PreInvPairs, 269 NumberOfFragments, 1371 HoareAnnotationTreeSize, 233 FomulaSimplifications, 3480 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 4337 FormulaSimplificationTreeSizeReductionInter, 3.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 57.4s InterpolantComputationTime, 2176 NumberOfCodeBlocks, 2176 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2163 ConstructedInterpolants, 0 QuantifiedInterpolants, 4694297 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 640/668 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...