/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/Problem14_label33.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 18:14:40,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 18:14:40,433 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 18:14:40,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 18:14:40,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 18:14:40,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 18:14:40,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 18:14:40,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 18:14:40,507 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 18:14:40,515 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 18:14:40,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 18:14:40,518 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 18:14:40,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 18:14:40,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 18:14:40,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 18:14:40,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 18:14:40,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 18:14:40,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 18:14:40,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 18:14:40,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 18:14:40,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 18:14:40,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 18:14:40,555 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 18:14:40,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 18:14:40,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 18:14:40,583 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 18:14:40,584 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 18:14:40,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 18:14:40,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 18:14:40,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 18:14:40,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 18:14:40,590 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 18:14:40,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 18:14:40,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 18:14:40,594 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 18:14:40,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 18:14:40,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 18:14:40,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 18:14:40,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 18:14:40,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 18:14:40,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 18:14:40,600 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 18:14:40,654 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 18:14:40,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 18:14:40,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 18:14:40,660 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 18:14:40,660 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 18:14:40,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 18:14:40,661 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 18:14:40,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 18:14:40,661 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 18:14:40,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 18:14:40,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 18:14:40,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 18:14:40,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 18:14:40,664 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 18:14:40,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 18:14:40,664 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 18:14:40,664 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 18:14:40,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 18:14:40,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 18:14:40,665 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 18:14:40,665 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 18:14:40,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 18:14:40,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 18:14:40,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 18:14:40,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 18:14:40,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 18:14:40,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 18:14:40,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 18:14:40,668 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 18:14:40,668 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 18:14:41,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 18:14:41,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 18:14:41,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 18:14:41,187 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 18:14:41,188 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 18:14:41,189 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label33.c [2020-10-27 18:14:41,267 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f58be5b36/18206ad193b84d61b8f2a4ec2d24a6ee/FLAG48fbf064f [2020-10-27 18:14:42,037 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 18:14:42,038 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label33.c [2020-10-27 18:14:42,062 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f58be5b36/18206ad193b84d61b8f2a4ec2d24a6ee/FLAG48fbf064f [2020-10-27 18:14:42,294 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f58be5b36/18206ad193b84d61b8f2a4ec2d24a6ee [2020-10-27 18:14:42,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 18:14:42,305 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 18:14:42,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 18:14:42,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 18:14:42,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 18:14:42,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:14:42" (1/1) ... [2020-10-27 18:14:42,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60b84abc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:14:42, skipping insertion in model container [2020-10-27 18:14:42,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:14:42" (1/1) ... [2020-10-27 18:14:42,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 18:14:42,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 18:14:43,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 18:14:43,016 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 18:14:43,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 18:14:43,215 INFO L208 MainTranslator]: Completed translation [2020-10-27 18:14:43,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:14:43 WrapperNode [2020-10-27 18:14:43,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 18:14:43,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 18:14:43,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 18:14:43,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 18:14:43,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:14:43" (1/1) ... [2020-10-27 18:14:43,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:14:43" (1/1) ... [2020-10-27 18:14:43,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:14:43" (1/1) ... [2020-10-27 18:14:43,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:14:43" (1/1) ... [2020-10-27 18:14:43,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:14:43" (1/1) ... [2020-10-27 18:14:43,373 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:14:43" (1/1) ... [2020-10-27 18:14:43,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:14:43" (1/1) ... [2020-10-27 18:14:43,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 18:14:43,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 18:14:43,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 18:14:43,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 18:14:43,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:14:43" (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 18:14:43,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 18:14:43,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 18:14:43,519 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 18:14:43,520 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-27 18:14:43,520 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 18:14:43,521 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-27 18:14:43,521 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 18:14:43,521 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 18:14:43,521 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 18:14:43,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 18:14:43,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 18:14:43,523 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 18:14:43,523 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 18:14:43,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 18:14:43,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 18:14:43,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 18:14:43,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 18:14:43,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 18:14:43,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 18:14:45,230 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 18:14:45,230 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 18:14:45,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:14:45 BoogieIcfgContainer [2020-10-27 18:14:45,233 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 18:14:45,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 18:14:45,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 18:14:45,239 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 18:14:45,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 06:14:42" (1/3) ... [2020-10-27 18:14:45,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36915a13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 06:14:45, skipping insertion in model container [2020-10-27 18:14:45,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:14:43" (2/3) ... [2020-10-27 18:14:45,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36915a13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 06:14:45, skipping insertion in model container [2020-10-27 18:14:45,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:14:45" (3/3) ... [2020-10-27 18:14:45,242 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label33.c [2020-10-27 18:14:45,255 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 18:14:45,261 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 18:14:45,275 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 18:14:45,305 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 18:14:45,305 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 18:14:45,305 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 18:14:45,306 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 18:14:45,306 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 18:14:45,306 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 18:14:45,306 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 18:14:45,306 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 18:14:45,330 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-10-27 18:14:45,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-27 18:14:45,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:14:45,341 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] [2020-10-27 18:14:45,342 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:14:45,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:14:45,349 INFO L82 PathProgramCache]: Analyzing trace with hash -613819394, now seen corresponding path program 1 times [2020-10-27 18:14:45,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:14:45,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1909281025] [2020-10-27 18:14:45,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:14:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:14:45,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:14:46,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:14:46,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-27 18:14:46,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:14:46,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 589 [2020-10-27 18:14:46,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:14:46,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 18:14:46,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 18:14:46,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-27 18:14:46,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 18:14:46,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:14:46,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:14:46,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:14:46,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:14:46,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:14:46,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:14:46,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 18:14:46,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:14:46,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:14:46,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:14:46,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 18:14:46,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:14:46,398 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 18:14:46,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1909281025] [2020-10-27 18:14:46,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 18:14:46,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 18:14:46,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565541163] [2020-10-27 18:14:46,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:14:46,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:14:46,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:14:46,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:14:46,431 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 5 states. [2020-10-27 18:14:50,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:14:50,114 INFO L93 Difference]: Finished difference Result 891 states and 1619 transitions. [2020-10-27 18:14:50,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 18:14:50,117 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2020-10-27 18:14:50,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:14:50,156 INFO L225 Difference]: With dead ends: 891 [2020-10-27 18:14:50,157 INFO L226 Difference]: Without dead ends: 565 [2020-10-27 18:14:50,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:14:50,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-27 18:14:50,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 559. [2020-10-27 18:14:50,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-10-27 18:14:50,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 907 transitions. [2020-10-27 18:14:50,285 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 907 transitions. Word has length 65 [2020-10-27 18:14:50,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:14:50,286 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 907 transitions. [2020-10-27 18:14:50,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:14:50,286 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 907 transitions. [2020-10-27 18:14:50,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-27 18:14:50,294 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:14:50,295 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:14:50,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 18:14:50,296 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:14:50,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:14:50,297 INFO L82 PathProgramCache]: Analyzing trace with hash -861101697, now seen corresponding path program 1 times [2020-10-27 18:14:50,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:14:50,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [303006368] [2020-10-27 18:14:50,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:14:50,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:14:50,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:14:50,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:14:51,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:14:52,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:14:52,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-27 18:14:52,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 18:14:52,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1988 [2020-10-27 18:14:52,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:14:52,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:14:52,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-27 18:14:52,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 18:14:52,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:14:52,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:14:52,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:14:52,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:14:52,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:14:52,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:14:52,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:14:52,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 18:14:52,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:14:52,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:14:52,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:14:52,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:14:52,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:14:52,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:14:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:14:52,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:14:52,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:14:52,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-27 18:14:52,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:14:52,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-27 18:14:52,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:14:52,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:14:52,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:14:52,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 18:14:52,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:14:52,740 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 56 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 18:14:52,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [303006368] [2020-10-27 18:14:52,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:14:52,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:14:52,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536234021] [2020-10-27 18:14:52,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:14:52,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:14:52,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:14:52,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:14:52,744 INFO L87 Difference]: Start difference. First operand 559 states and 907 transitions. Second operand 5 states. [2020-10-27 18:14:54,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:14:54,270 INFO L93 Difference]: Finished difference Result 1136 states and 1845 transitions. [2020-10-27 18:14:54,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:14:54,276 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 139 [2020-10-27 18:14:54,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:14:54,281 INFO L225 Difference]: With dead ends: 1136 [2020-10-27 18:14:54,281 INFO L226 Difference]: Without dead ends: 565 [2020-10-27 18:14:54,284 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 18:14:54,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-27 18:14:54,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 559. [2020-10-27 18:14:54,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-10-27 18:14:54,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 904 transitions. [2020-10-27 18:14:54,320 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 904 transitions. Word has length 139 [2020-10-27 18:14:54,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:14:54,321 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 904 transitions. [2020-10-27 18:14:54,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:14:54,321 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 904 transitions. [2020-10-27 18:14:54,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-27 18:14:54,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:14:54,325 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:14:54,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 18:14:54,325 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:14:54,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:14:54,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1253357621, now seen corresponding path program 1 times [2020-10-27 18:14:54,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:14:54,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615696877] [2020-10-27 18:14:54,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:14:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:14:54,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:14:54,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:14:55,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:14:55,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:14:55,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:14:55,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-27 18:14:55,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 18:14:55,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1579 [2020-10-27 18:14:55,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:14:55,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:14:55,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-27 18:14:55,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 18:14:55,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:14:56,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:14:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:14:56,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:14:56,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:14:56,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:14:56,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:14:56,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 18:14:56,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:14:56,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:14:56,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:14:56,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:14:56,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:14:56,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:14:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:14:56,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:14:56,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:14:56,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 18:14:56,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:14:56,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-27 18:14:56,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:14:56,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:14:56,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:14:56,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-27 18:14:56,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:14:56,356 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 56 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 18:14:56,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [615696877] [2020-10-27 18:14:56,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:14:56,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:14:56,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740393724] [2020-10-27 18:14:56,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:14:56,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:14:56,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:14:56,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:14:56,359 INFO L87 Difference]: Start difference. First operand 559 states and 904 transitions. Second operand 5 states. [2020-10-27 18:14:57,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:14:57,932 INFO L93 Difference]: Finished difference Result 1149 states and 1852 transitions. [2020-10-27 18:14:57,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:14:57,939 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2020-10-27 18:14:57,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:14:57,944 INFO L225 Difference]: With dead ends: 1149 [2020-10-27 18:14:57,945 INFO L226 Difference]: Without dead ends: 565 [2020-10-27 18:14:57,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 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 18:14:57,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-27 18:14:57,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 559. [2020-10-27 18:14:57,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-10-27 18:14:57,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 901 transitions. [2020-10-27 18:14:57,972 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 901 transitions. Word has length 145 [2020-10-27 18:14:57,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:14:57,973 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 901 transitions. [2020-10-27 18:14:57,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:14:57,973 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 901 transitions. [2020-10-27 18:14:57,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-27 18:14:57,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:14:57,977 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:14:57,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 18:14:57,978 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:14:57,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:14:57,978 INFO L82 PathProgramCache]: Analyzing trace with hash 332268397, now seen corresponding path program 1 times [2020-10-27 18:14:57,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:14:57,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874774437] [2020-10-27 18:14:57,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:14:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:14:58,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:14:58,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:14:58,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:14:59,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:14:59,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-27 18:14:59,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 18:14:59,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1610 [2020-10-27 18:14:59,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:14:59,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:14:59,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-27 18:14:59,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 18:14:59,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:14:59,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:14:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:14:59,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:14:59,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:14:59,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:14:59,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:14:59,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 18:14:59,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:14:59,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:14:59,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:14:59,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:14:59,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:14:59,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:14:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:14:59,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:14:59,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:14:59,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-27 18:14:59,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:14:59,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-27 18:14:59,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:14:59,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:14:59,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:14:59,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-27 18:14:59,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:14:59,915 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 56 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 18:14:59,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874774437] [2020-10-27 18:14:59,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:14:59,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:14:59,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289322367] [2020-10-27 18:14:59,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:14:59,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:14:59,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:14:59,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:14:59,929 INFO L87 Difference]: Start difference. First operand 559 states and 901 transitions. Second operand 5 states. [2020-10-27 18:15:02,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:15:02,056 INFO L93 Difference]: Finished difference Result 1670 states and 2736 transitions. [2020-10-27 18:15:02,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:15:02,059 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-10-27 18:15:02,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:15:02,067 INFO L225 Difference]: With dead ends: 1670 [2020-10-27 18:15:02,067 INFO L226 Difference]: Without dead ends: 1117 [2020-10-27 18:15:02,069 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 18:15:02,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2020-10-27 18:15:02,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 745. [2020-10-27 18:15:02,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 745 states. [2020-10-27 18:15:02,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1160 transitions. [2020-10-27 18:15:02,107 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1160 transitions. Word has length 148 [2020-10-27 18:15:02,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:15:02,108 INFO L481 AbstractCegarLoop]: Abstraction has 745 states and 1160 transitions. [2020-10-27 18:15:02,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:15:02,108 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1160 transitions. [2020-10-27 18:15:02,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-27 18:15:02,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:15:02,113 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:15:02,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 18:15:02,113 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:15:02,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:15:02,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1714652849, now seen corresponding path program 1 times [2020-10-27 18:15:02,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:15:02,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201219806] [2020-10-27 18:15:02,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:15:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:15:02,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:15:02,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:15:02,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:15:04,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:15:07,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:15:07,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-27 18:15:07,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 18:15:07,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4906 [2020-10-27 18:15:07,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:15:07,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:15:07,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 188 [2020-10-27 18:15:07,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 18:15:07,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:15:07,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:15:07,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:15:07,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:15:07,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:15:07,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:15:07,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:15:07,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 18:15:07,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:15:07,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:15:07,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:15:07,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:15:07,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:15:07,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:15:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:15:07,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:15:07,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:15:07,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-27 18:15:07,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:15:07,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-27 18:15:07,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:15:07,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:15:07,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:15:07,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-27 18:15:07,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:15:07,665 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 56 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 18:15:07,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1201219806] [2020-10-27 18:15:07,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:15:07,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:15:07,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869868988] [2020-10-27 18:15:07,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:15:07,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:15:07,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:15:07,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:15:07,670 INFO L87 Difference]: Start difference. First operand 745 states and 1160 transitions. Second operand 5 states. [2020-10-27 18:15:10,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:15:10,172 INFO L93 Difference]: Finished difference Result 2040 states and 3253 transitions. [2020-10-27 18:15:10,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:15:10,173 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 243 [2020-10-27 18:15:10,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:15:10,187 INFO L225 Difference]: With dead ends: 2040 [2020-10-27 18:15:10,188 INFO L226 Difference]: Without dead ends: 1301 [2020-10-27 18:15:10,191 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:15:10,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2020-10-27 18:15:10,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 931. [2020-10-27 18:15:10,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 931 states. [2020-10-27 18:15:10,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1335 transitions. [2020-10-27 18:15:10,252 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1335 transitions. Word has length 243 [2020-10-27 18:15:10,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:15:10,252 INFO L481 AbstractCegarLoop]: Abstraction has 931 states and 1335 transitions. [2020-10-27 18:15:10,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:15:10,253 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1335 transitions. [2020-10-27 18:15:10,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-10-27 18:15:10,259 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:15:10,259 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:15:10,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 18:15:10,259 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:15:10,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:15:10,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1193994242, now seen corresponding path program 1 times [2020-10-27 18:15:10,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:15:10,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1536926020] [2020-10-27 18:15:10,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:15:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:15:10,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:15:10,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:15:10,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:15:10,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:15:13,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:15:15,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:15:15,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-10-27 18:15:15,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 18:15:15,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-27 18:15:15,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:15:15,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:15:15,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 209 [2020-10-27 18:15:15,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 18:15:15,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:15:15,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:15:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:15:15,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:15:15,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:15:15,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:15:15,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:15:15,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 18:15:15,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:15:15,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:15:15,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:15:15,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:15:15,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:15:15,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:15:15,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:15:15,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:15:15,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:15:15,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-27 18:15:15,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:15:15,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 18:15:15,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:15:15,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:15:15,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:15:15,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:15:15,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:15:15,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-27 18:15:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:15:15,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:15:15,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:15:15,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-27 18:15:15,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:15:15,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-27 18:15:15,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:15:15,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:15:15,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:15:15,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-27 18:15:15,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:15:15,739 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-10-27 18:15:15,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1536926020] [2020-10-27 18:15:15,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:15:15,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:15:15,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361225867] [2020-10-27 18:15:15,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:15:15,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:15:15,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:15:15,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:15:15,742 INFO L87 Difference]: Start difference. First operand 931 states and 1335 transitions. Second operand 5 states. [2020-10-27 18:15:18,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:15:18,167 INFO L93 Difference]: Finished difference Result 2596 states and 3794 transitions. [2020-10-27 18:15:18,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:15:18,170 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 262 [2020-10-27 18:15:18,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:15:18,184 INFO L225 Difference]: With dead ends: 2596 [2020-10-27 18:15:18,184 INFO L226 Difference]: Without dead ends: 1671 [2020-10-27 18:15:18,187 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 18:15:18,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2020-10-27 18:15:18,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1485. [2020-10-27 18:15:18,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1485 states. [2020-10-27 18:15:18,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 2009 transitions. [2020-10-27 18:15:18,246 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 2009 transitions. Word has length 262 [2020-10-27 18:15:18,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:15:18,247 INFO L481 AbstractCegarLoop]: Abstraction has 1485 states and 2009 transitions. [2020-10-27 18:15:18,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:15:18,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 2009 transitions. [2020-10-27 18:15:18,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-10-27 18:15:18,254 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:15:18,254 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:18,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 18:15:18,255 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:15:18,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:15:18,257 INFO L82 PathProgramCache]: Analyzing trace with hash -526114722, now seen corresponding path program 1 times [2020-10-27 18:15:18,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:15:18,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1721957130] [2020-10-27 18:15:18,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:15:18,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:15:18,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:15:18,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:15:18,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:15:18,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:15:22,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:15:23,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:15:23,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 324 [2020-10-27 18:15:23,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 18:15:23,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-27 18:15:23,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:15:23,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:15:23,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 257 [2020-10-27 18:15:23,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 18:15:23,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:15:23,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:15:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:15:23,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:15:23,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:15:23,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:15:23,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:15:23,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 18:15:23,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:15:23,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:15:23,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:15:23,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:15:23,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:15:23,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:15:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:15:23,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:15:23,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:15:23,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-27 18:15:23,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:15:23,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 18:15:23,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:15:23,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:15:23,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:15:23,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:15:23,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:15:23,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-27 18:15:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:15:23,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:15:23,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:15:23,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-27 18:15:23,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:15:23,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-27 18:15:23,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:15:23,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:15:23,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:15:23,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-27 18:15:23,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:15:24,009 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-27 18:15:24,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1721957130] [2020-10-27 18:15:24,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:15:24,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:15:24,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810249433] [2020-10-27 18:15:24,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:15:24,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:15:24,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:15:24,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:15:24,014 INFO L87 Difference]: Start difference. First operand 1485 states and 2009 transitions. Second operand 5 states. [2020-10-27 18:15:26,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:15:26,435 INFO L93 Difference]: Finished difference Result 3333 states and 4608 transitions. [2020-10-27 18:15:26,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:15:26,438 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 310 [2020-10-27 18:15:26,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:15:26,439 INFO L225 Difference]: With dead ends: 3333 [2020-10-27 18:15:26,439 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 18:15:26,447 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 18:15:26,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 18:15:26,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 18:15:26,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 18:15:26,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 18:15:26,448 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 310 [2020-10-27 18:15:26,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:15:26,448 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 18:15:26,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:15:26,449 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 18:15:26,449 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 18:15:26,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 18:15:26,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 18:15:26,589 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 37 [2020-10-27 18:15:27,423 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 38 [2020-10-27 18:15:27,594 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-27 18:15:27,594 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-27 18:15:27,594 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-27 18:15:27,594 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-27 18:15:27,594 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 18:15:27,595 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)|) (= ~inputA~0 |old(~inputA~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a15~0 |old(~a15~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |#t~string7.base| |old(#t~string7.base)|)) [2020-10-27 18:15:27,595 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 18:15:27,595 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-27 18:15:27,595 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-27 18:15:27,595 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-27 18:15:27,596 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-27 18:15:27,596 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-27 18:15:27,596 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-27 18:15:27,596 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-27 18:15:27,596 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,596 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,596 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,596 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-27 18:15:27,596 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-27 18:15:27,597 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-27 18:15:27,597 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-27 18:15:27,597 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-27 18:15:27,597 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-27 18:15:27,598 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-27 18:15:27,598 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-27 18:15:27,598 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,599 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,599 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,599 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-27 18:15:27,600 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-27 18:15:27,600 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-27 18:15:27,600 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-27 18:15:27,600 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-27 18:15:27,600 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-27 18:15:27,600 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-27 18:15:27,601 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-27 18:15:27,601 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,601 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,601 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,602 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-27 18:15:27,602 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-27 18:15:27,603 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-27 18:15:27,603 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-27 18:15:27,603 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-27 18:15:27,603 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-27 18:15:27,603 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-27 18:15:27,603 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-27 18:15:27,603 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-27 18:15:27,603 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,603 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,603 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,604 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-27 18:15:27,605 INFO L270 CegarLoopResult]: At program point L180(line 180) the Hoare annotation is: (and (not (= 8 |old(~a21~0)|)) (not (<= |old(~a12~0)| 10)) (not (= 9 |old(~a21~0)|)) (= 6 |old(~a15~0)|) (not (= |old(~a15~0)| |old(~a21~0)|))) [2020-10-27 18:15:27,605 INFO L274 CegarLoopResult]: For program point L180-1(line 180) no Hoare annotation was computed. [2020-10-27 18:15:27,605 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-27 18:15:27,605 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-27 18:15:27,606 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-27 18:15:27,606 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-27 18:15:27,606 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-27 18:15:27,607 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,607 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,607 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,607 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-27 18:15:27,607 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-27 18:15:27,608 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-27 18:15:27,608 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-27 18:15:27,608 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-27 18:15:27,608 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,608 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-27 18:15:27,608 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-27 18:15:27,608 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-27 18:15:27,608 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-27 18:15:27,608 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,609 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,609 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,609 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-27 18:15:27,609 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-27 18:15:27,609 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-27 18:15:27,610 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-27 18:15:27,610 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-27 18:15:27,610 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-27 18:15:27,610 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-27 18:15:27,610 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-27 18:15:27,610 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,610 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,610 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,610 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-27 18:15:27,611 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-27 18:15:27,611 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-27 18:15:27,611 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-27 18:15:27,611 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-27 18:15:27,611 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-27 18:15:27,611 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-27 18:15:27,611 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-27 18:15:27,611 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,611 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,612 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,612 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-27 18:15:27,612 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 874) the Hoare annotation is: (let ((.cse0 (= ~a24~0 |old(~a24~0)|)) (.cse1 (= ~a12~0 |old(~a12~0)|)) (.cse2 (= ~a15~0 |old(~a15~0)|))) (let ((.cse3 (and .cse0 (= ~a21~0 |old(~a21~0)|) .cse1 .cse2))) (and (or (and .cse0 (= ~a21~0 9) .cse1 .cse2) (not (= 9 |old(~a21~0)|))) (or .cse3 (= 6 |old(~a15~0)|)) (or (and .cse0 .cse1 (= ~a21~0 ~a15~0) .cse2) (not (= |old(~a15~0)| |old(~a21~0)|))) (or .cse3 (not (<= |old(~a12~0)| 10))) (or (and .cse0 (= ~a21~0 8) .cse1 .cse2) (not (= 8 |old(~a21~0)|)))))) [2020-10-27 18:15:27,612 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-27 18:15:27,612 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-27 18:15:27,612 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-27 18:15:27,613 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-27 18:15:27,613 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-27 18:15:27,613 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-27 18:15:27,614 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-27 18:15:27,614 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,615 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,615 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,615 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-27 18:15:27,616 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-27 18:15:27,616 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-27 18:15:27,616 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-27 18:15:27,616 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-27 18:15:27,616 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-27 18:15:27,616 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-27 18:15:27,616 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-27 18:15:27,617 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,617 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,617 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,617 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-27 18:15:27,617 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-27 18:15:27,617 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-27 18:15:27,617 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-27 18:15:27,617 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-27 18:15:27,617 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-27 18:15:27,617 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-27 18:15:27,618 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-27 18:15:27,618 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,618 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,618 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,618 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-27 18:15:27,618 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-27 18:15:27,618 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-27 18:15:27,618 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-27 18:15:27,618 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-27 18:15:27,618 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-27 18:15:27,618 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-27 18:15:27,619 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-27 18:15:27,619 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,619 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,619 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,619 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-27 18:15:27,619 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-27 18:15:27,619 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-27 18:15:27,619 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-27 18:15:27,619 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-27 18:15:27,619 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-27 18:15:27,620 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-27 18:15:27,620 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-27 18:15:27,620 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,620 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,620 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-27 18:15:27,620 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-27 18:15:27,620 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-27 18:15:27,620 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-27 18:15:27,620 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-27 18:15:27,620 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-27 18:15:27,621 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-27 18:15:27,621 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-27 18:15:27,621 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,621 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,621 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-27 18:15:27,621 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-27 18:15:27,621 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-27 18:15:27,621 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-27 18:15:27,621 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-27 18:15:27,621 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-27 18:15:27,622 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,622 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,622 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-27 18:15:27,622 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-27 18:15:27,622 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-27 18:15:27,622 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-27 18:15:27,622 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-27 18:15:27,622 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-27 18:15:27,622 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-27 18:15:27,622 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-27 18:15:27,623 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,623 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,623 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-27 18:15:27,623 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-27 18:15:27,623 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-27 18:15:27,623 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-27 18:15:27,623 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,623 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-27 18:15:27,623 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-27 18:15:27,623 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-27 18:15:27,624 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,624 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,624 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-27 18:15:27,624 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-27 18:15:27,624 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-27 18:15:27,624 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-27 18:15:27,624 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-27 18:15:27,624 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-27 18:15:27,624 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,624 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,624 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-27 18:15:27,625 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,625 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-27 18:15:27,625 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-27 18:15:27,625 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-27 18:15:27,625 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-27 18:15:27,625 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-27 18:15:27,625 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-27 18:15:27,625 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-27 18:15:27,625 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-27 18:15:27,625 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-27 18:15:27,626 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-27 18:15:27,626 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,626 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,626 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,626 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-27 18:15:27,626 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-27 18:15:27,626 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-27 18:15:27,626 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-27 18:15:27,626 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-27 18:15:27,626 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-27 18:15:27,627 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-27 18:15:27,627 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-27 18:15:27,627 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,627 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,627 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,627 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-27 18:15:27,627 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-27 18:15:27,627 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-27 18:15:27,627 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-27 18:15:27,628 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-27 18:15:27,628 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-27 18:15:27,628 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-27 18:15:27,628 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-27 18:15:27,628 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,628 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,628 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,628 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-27 18:15:27,628 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-27 18:15:27,628 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-27 18:15:27,629 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-27 18:15:27,629 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-27 18:15:27,629 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-27 18:15:27,629 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-27 18:15:27,629 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-27 18:15:27,630 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-27 18:15:27,630 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,631 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,632 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:15:27,632 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 18:15:27,632 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 8 ~a15~0) (<= ~a12~0 10)) [2020-10-27 18:15:27,632 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 18:15:27,632 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 18:15:27,633 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 876 892) the Hoare annotation is: (or (and (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a15~0 |old(~a15~0)|)) (not (<= 8 |old(~a15~0)|)) (not (<= |old(~a12~0)| 10))) [2020-10-27 18:15:27,633 INFO L270 CegarLoopResult]: At program point L890(line 890) the Hoare annotation is: (or (<= ~a12~0 10) (not (<= 8 |old(~a15~0)|)) (not (<= |old(~a12~0)| 10)) (not (= ~a15~0 6)) (= ~a21~0 9) (= ~a21~0 8) (= ~a21~0 ~a15~0)) [2020-10-27 18:15:27,633 INFO L274 CegarLoopResult]: For program point L890-1(line 890) no Hoare annotation was computed. [2020-10-27 18:15:27,633 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 876 892) no Hoare annotation was computed. [2020-10-27 18:15:27,635 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-27 18:15:27,635 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (or (<= ~a12~0 10) (not (<= 8 |old(~a15~0)|)) (not (<= |old(~a12~0)| 10)) (not (= ~a15~0 6)) (= ~a21~0 9) (= ~a21~0 8) (= ~a21~0 ~a15~0)) [2020-10-27 18:15:27,635 INFO L274 CegarLoopResult]: For program point L882-3(lines 876 892) no Hoare annotation was computed. [2020-10-27 18:15:27,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 06:15:27 BoogieIcfgContainer [2020-10-27 18:15:27,665 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 18:15:27,670 INFO L168 Benchmark]: Toolchain (without parser) took 45367.56 ms. Allocated memory was 155.2 MB in the beginning and 714.1 MB in the end (delta: 558.9 MB). Free memory was 128.3 MB in the beginning and 376.5 MB in the end (delta: -248.1 MB). Peak memory consumption was 311.8 MB. Max. memory is 8.0 GB. [2020-10-27 18:15:27,676 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 155.2 MB. Free memory is still 128.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 18:15:27,677 INFO L168 Benchmark]: CACSL2BoogieTranslator took 907.27 ms. Allocated memory is still 155.2 MB. Free memory was 127.8 MB in the beginning and 127.7 MB in the end (delta: 95.9 kB). Peak memory consumption was 27.4 MB. Max. memory is 8.0 GB. [2020-10-27 18:15:27,678 INFO L168 Benchmark]: Boogie Preprocessor took 192.05 ms. Allocated memory is still 155.2 MB. Free memory was 127.7 MB in the beginning and 121.9 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-10-27 18:15:27,679 INFO L168 Benchmark]: RCFGBuilder took 1823.36 ms. Allocated memory is still 155.2 MB. Free memory was 121.9 MB in the beginning and 83.2 MB in the end (delta: 38.7 MB). Peak memory consumption was 77.0 MB. Max. memory is 8.0 GB. [2020-10-27 18:15:27,680 INFO L168 Benchmark]: TraceAbstraction took 42430.62 ms. Allocated memory was 155.2 MB in the beginning and 714.1 MB in the end (delta: 558.9 MB). Free memory was 82.7 MB in the beginning and 376.5 MB in the end (delta: -293.8 MB). Peak memory consumption was 265.1 MB. Max. memory is 8.0 GB. [2020-10-27 18:15:27,692 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 155.2 MB. Free memory is still 128.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 907.27 ms. Allocated memory is still 155.2 MB. Free memory was 127.8 MB in the beginning and 127.7 MB in the end (delta: 95.9 kB). Peak memory consumption was 27.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 192.05 ms. Allocated memory is still 155.2 MB. Free memory was 127.7 MB in the beginning and 121.9 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1823.36 ms. Allocated memory is still 155.2 MB. Free memory was 121.9 MB in the beginning and 83.2 MB in the end (delta: 38.7 MB). Peak memory consumption was 77.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 42430.62 ms. Allocated memory was 155.2 MB in the beginning and 714.1 MB in the end (delta: 558.9 MB). Free memory was 82.7 MB in the beginning and 376.5 MB in the end (delta: -293.8 MB). Peak memory consumption was 265.1 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: 882]: Loop Invariant Derived loop invariant: (((((a12 <= 10 || !(8 <= \old(a15))) || !(\old(a12) <= 10)) || !(a15 == 6)) || a21 == 9) || a21 == 8) || a21 == a15 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 258 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 41.1s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 16.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 174 SDtfs, 2933 SDslu, 141 SDs, 0 SdLazy, 6981 SolverSat, 947 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 46 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1485occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 946 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 93 PreInvPairs, 119 NumberOfFragments, 252 HoareAnnotationTreeSize, 93 FomulaSimplifications, 35096 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 9 FomulaSimplificationsInter, 1311 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 23.2s InterpolantComputationTime, 1312 NumberOfCodeBlocks, 1312 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1305 ConstructedInterpolants, 0 QuantifiedInterpolants, 667671 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 645/653 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...