/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label36.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 17:55:25,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 17:55:25,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 17:55:25,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 17:55:25,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 17:55:25,191 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 17:55:25,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 17:55:25,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 17:55:25,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 17:55:25,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 17:55:25,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 17:55:25,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 17:55:25,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 17:55:25,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 17:55:25,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 17:55:25,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 17:55:25,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 17:55:25,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 17:55:25,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 17:55:25,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 17:55:25,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 17:55:25,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 17:55:25,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 17:55:25,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 17:55:25,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 17:55:25,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 17:55:25,214 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 17:55:25,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 17:55:25,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 17:55:25,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 17:55:25,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 17:55:25,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 17:55:25,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 17:55:25,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 17:55:25,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 17:55:25,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 17:55:25,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 17:55:25,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 17:55:25,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 17:55:25,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 17:55:25,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 17:55:25,227 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 [2020-08-18 17:55:25,249 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 17:55:25,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 17:55:25,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 17:55:25,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 17:55:25,251 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 17:55:25,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 17:55:25,252 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 17:55:25,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 17:55:25,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 17:55:25,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 17:55:25,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 17:55:25,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 17:55:25,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 17:55:25,253 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 17:55:25,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 17:55:25,254 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 17:55:25,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 17:55:25,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 17:55:25,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 17:55:25,254 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 17:55:25,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 17:55:25,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 17:55:25,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 17:55:25,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 17:55:25,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 17:55:25,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 17:55:25,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 17:55:25,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 17:55:25,256 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 17:55:25,257 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=BIGGEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=BIGGEST; [2020-08-18 17:55:25,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 17:55:25,568 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 17:55:25,574 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 17:55:25,576 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 17:55:25,577 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 17:55:25,578 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label36.c [2020-08-18 17:55:25,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/36910ecfd/286e00ba547742e989276f8a9cf79d78/FLAG074130b7e [2020-08-18 17:55:26,223 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 17:55:26,223 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label36.c [2020-08-18 17:55:26,238 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/36910ecfd/286e00ba547742e989276f8a9cf79d78/FLAG074130b7e [2020-08-18 17:55:26,503 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/36910ecfd/286e00ba547742e989276f8a9cf79d78 [2020-08-18 17:55:26,512 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 17:55:26,513 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 17:55:26,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 17:55:26,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 17:55:26,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 17:55:26,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 05:55:26" (1/1) ... [2020-08-18 17:55:26,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fc06ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:55:26, skipping insertion in model container [2020-08-18 17:55:26,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 05:55:26" (1/1) ... [2020-08-18 17:55:26,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 17:55:26,587 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 17:55:27,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 17:55:27,157 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 17:55:27,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 17:55:27,283 INFO L208 MainTranslator]: Completed translation [2020-08-18 17:55:27,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:55:27 WrapperNode [2020-08-18 17:55:27,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 17:55:27,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 17:55:27,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 17:55:27,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 17:55:27,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:55:27" (1/1) ... [2020-08-18 17:55:27,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:55:27" (1/1) ... [2020-08-18 17:55:27,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:55:27" (1/1) ... [2020-08-18 17:55:27,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:55:27" (1/1) ... [2020-08-18 17:55:27,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:55:27" (1/1) ... [2020-08-18 17:55:27,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:55:27" (1/1) ... [2020-08-18 17:55:27,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:55:27" (1/1) ... [2020-08-18 17:55:27,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 17:55:27,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 17:55:27,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 17:55:27,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 17:55:27,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:55:27" (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 [2020-08-18 17:55:27,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 17:55:27,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 17:55:27,500 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-18 17:55:27,501 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 17:55:27,503 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-18 17:55:27,503 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 17:55:27,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 17:55:27,504 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-18 17:55:27,505 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 17:55:27,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 17:55:27,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 17:55:28,648 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 17:55:28,649 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-18 17:55:28,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 05:55:28 BoogieIcfgContainer [2020-08-18 17:55:28,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 17:55:28,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 17:55:28,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 17:55:28,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 17:55:28,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 05:55:26" (1/3) ... [2020-08-18 17:55:28,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@413ce881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 05:55:28, skipping insertion in model container [2020-08-18 17:55:28,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:55:27" (2/3) ... [2020-08-18 17:55:28,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@413ce881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 05:55:28, skipping insertion in model container [2020-08-18 17:55:28,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 05:55:28" (3/3) ... [2020-08-18 17:55:28,663 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label36.c [2020-08-18 17:55:28,674 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 17:55:28,682 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 17:55:28,697 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 17:55:28,724 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 17:55:28,724 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 17:55:28,725 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 17:55:28,725 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 17:55:28,725 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 17:55:28,725 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 17:55:28,726 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 17:55:28,726 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 17:55:28,755 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-08-18 17:55:28,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-08-18 17:55:28,768 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:55:28,769 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 17:55:28,770 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:55:28,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:55:28,777 INFO L82 PathProgramCache]: Analyzing trace with hash 92920350, now seen corresponding path program 1 times [2020-08-18 17:55:28,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:55:28,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1491310501] [2020-08-18 17:55:28,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:55:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:55:29,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:55:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:55:29,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 17:55:29,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1491310501] [2020-08-18 17:55:29,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 17:55:29,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 17:55:29,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131497874] [2020-08-18 17:55:29,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 17:55:29,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:55:29,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 17:55:29,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 17:55:29,384 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-08-18 17:55:31,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:55:31,607 INFO L93 Difference]: Finished difference Result 698 states and 1233 transitions. [2020-08-18 17:55:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 17:55:31,609 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 108 [2020-08-18 17:55:31,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:55:31,631 INFO L225 Difference]: With dead ends: 698 [2020-08-18 17:55:31,631 INFO L226 Difference]: Without dead ends: 423 [2020-08-18 17:55:31,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-18 17:55:31,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-08-18 17:55:31,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2020-08-18 17:55:31,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-08-18 17:55:31,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 585 transitions. [2020-08-18 17:55:31,770 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 585 transitions. Word has length 108 [2020-08-18 17:55:31,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:55:31,771 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 585 transitions. [2020-08-18 17:55:31,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 17:55:31,772 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 585 transitions. [2020-08-18 17:55:31,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-08-18 17:55:31,777 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:55:31,778 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-18 17:55:31,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 17:55:31,778 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:55:31,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:55:31,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1820777163, now seen corresponding path program 1 times [2020-08-18 17:55:31,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:55:31,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1984681605] [2020-08-18 17:55:31,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:55:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:55:31,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:55:31,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:55:31,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 17:55:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:55:32,004 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 17:55:32,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1984681605] [2020-08-18 17:55:32,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 17:55:32,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 17:55:32,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654197836] [2020-08-18 17:55:32,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 17:55:32,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:55:32,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 17:55:32,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 17:55:32,009 INFO L87 Difference]: Start difference. First operand 417 states and 585 transitions. Second operand 8 states. [2020-08-18 17:55:33,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:55:33,499 INFO L93 Difference]: Finished difference Result 1130 states and 1658 transitions. [2020-08-18 17:55:33,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 17:55:33,499 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 118 [2020-08-18 17:55:33,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:55:33,506 INFO L225 Difference]: With dead ends: 1130 [2020-08-18 17:55:33,507 INFO L226 Difference]: Without dead ends: 719 [2020-08-18 17:55:33,509 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-08-18 17:55:33,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2020-08-18 17:55:33,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 697. [2020-08-18 17:55:33,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 697 states. [2020-08-18 17:55:33,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 978 transitions. [2020-08-18 17:55:33,563 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 978 transitions. Word has length 118 [2020-08-18 17:55:33,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:55:33,564 INFO L479 AbstractCegarLoop]: Abstraction has 697 states and 978 transitions. [2020-08-18 17:55:33,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 17:55:33,564 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 978 transitions. [2020-08-18 17:55:33,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-08-18 17:55:33,569 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:55:33,570 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 17:55:33,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 17:55:33,570 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:55:33,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:55:33,571 INFO L82 PathProgramCache]: Analyzing trace with hash 871696247, now seen corresponding path program 1 times [2020-08-18 17:55:33,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:55:33,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [904748979] [2020-08-18 17:55:33,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:55:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:55:33,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:55:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:55:33,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 17:55:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:55:33,842 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 17:55:33,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [904748979] [2020-08-18 17:55:33,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 17:55:33,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 17:55:33,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137549242] [2020-08-18 17:55:33,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 17:55:33,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:55:33,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 17:55:33,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 17:55:33,845 INFO L87 Difference]: Start difference. First operand 697 states and 978 transitions. Second operand 5 states. [2020-08-18 17:55:35,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:55:35,054 INFO L93 Difference]: Finished difference Result 1807 states and 2571 transitions. [2020-08-18 17:55:35,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 17:55:35,057 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2020-08-18 17:55:35,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:55:35,066 INFO L225 Difference]: With dead ends: 1807 [2020-08-18 17:55:35,066 INFO L226 Difference]: Without dead ends: 1116 [2020-08-18 17:55:35,069 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-18 17:55:35,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2020-08-18 17:55:35,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 977. [2020-08-18 17:55:35,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 977 states. [2020-08-18 17:55:35,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1348 transitions. [2020-08-18 17:55:35,129 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1348 transitions. Word has length 119 [2020-08-18 17:55:35,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:55:35,131 INFO L479 AbstractCegarLoop]: Abstraction has 977 states and 1348 transitions. [2020-08-18 17:55:35,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 17:55:35,132 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1348 transitions. [2020-08-18 17:55:35,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-08-18 17:55:35,136 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:55:35,137 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-18 17:55:35,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 17:55:35,137 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:55:35,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:55:35,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1435717905, now seen corresponding path program 1 times [2020-08-18 17:55:35,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:55:35,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [126150554] [2020-08-18 17:55:35,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:55:35,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:55:35,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:55:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:55:35,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 17:55:35,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:55:35,335 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 17:55:35,335 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [126150554] [2020-08-18 17:55:35,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 17:55:35,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 17:55:35,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661674494] [2020-08-18 17:55:35,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 17:55:35,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:55:35,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 17:55:35,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 17:55:35,338 INFO L87 Difference]: Start difference. First operand 977 states and 1348 transitions. Second operand 5 states. [2020-08-18 17:55:36,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:55:36,509 INFO L93 Difference]: Finished difference Result 2639 states and 3673 transitions. [2020-08-18 17:55:36,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 17:55:36,511 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 123 [2020-08-18 17:55:36,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:55:36,533 INFO L225 Difference]: With dead ends: 2639 [2020-08-18 17:55:36,534 INFO L226 Difference]: Without dead ends: 1668 [2020-08-18 17:55:36,540 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-18 17:55:36,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2020-08-18 17:55:36,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1394. [2020-08-18 17:55:36,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1394 states. [2020-08-18 17:55:36,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1810 transitions. [2020-08-18 17:55:36,615 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1810 transitions. Word has length 123 [2020-08-18 17:55:36,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:55:36,617 INFO L479 AbstractCegarLoop]: Abstraction has 1394 states and 1810 transitions. [2020-08-18 17:55:36,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 17:55:36,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1810 transitions. [2020-08-18 17:55:36,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-08-18 17:55:36,627 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:55:36,627 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 17:55:36,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 17:55:36,628 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:55:36,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:55:36,628 INFO L82 PathProgramCache]: Analyzing trace with hash -70857782, now seen corresponding path program 1 times [2020-08-18 17:55:36,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:55:36,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [44323557] [2020-08-18 17:55:36,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:55:36,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:55:36,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:55:36,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:55:36,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 17:55:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:55:36,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 17:55:36,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:55:37,062 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 76 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-08-18 17:55:37,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [44323557] [2020-08-18 17:55:37,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 17:55:37,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-18 17:55:37,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183161032] [2020-08-18 17:55:37,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 17:55:37,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:55:37,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 17:55:37,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-18 17:55:37,065 INFO L87 Difference]: Start difference. First operand 1394 states and 1810 transitions. Second operand 8 states. [2020-08-18 17:55:39,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:55:39,846 INFO L93 Difference]: Finished difference Result 2919 states and 3786 transitions. [2020-08-18 17:55:39,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 17:55:39,855 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 195 [2020-08-18 17:55:39,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:55:39,857 INFO L225 Difference]: With dead ends: 2919 [2020-08-18 17:55:39,857 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 17:55:39,868 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-08-18 17:55:39,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 17:55:39,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 17:55:39,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 17:55:39,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 17:55:39,870 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 195 [2020-08-18 17:55:39,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:55:39,870 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 17:55:39,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 17:55:39,870 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 17:55:39,871 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 17:55:39,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 17:55:39,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 17:55:40,626 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 52 [2020-08-18 17:55:40,820 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 31 [2020-08-18 17:55:41,027 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 31 [2020-08-18 17:55:41,034 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-18 17:55:41,035 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-08-18 17:55:41,036 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 17:55:41,036 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-08-18 17:55:41,036 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-08-18 17:55:41,036 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,036 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,037 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,037 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,040 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,040 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,040 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-08-18 17:55:41,041 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-08-18 17:55:41,041 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-08-18 17:55:41,041 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-08-18 17:55:41,041 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-08-18 17:55:41,041 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-08-18 17:55:41,042 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-08-18 17:55:41,046 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-08-18 17:55:41,047 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-08-18 17:55:41,047 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-08-18 17:55:41,047 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,047 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,048 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,048 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,048 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,048 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,048 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-08-18 17:55:41,049 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-08-18 17:55:41,049 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-08-18 17:55:41,049 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-08-18 17:55:41,049 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-08-18 17:55:41,049 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-08-18 17:55:41,055 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-08-18 17:55:41,055 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-08-18 17:55:41,055 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-08-18 17:55:41,055 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-08-18 17:55:41,056 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-08-18 17:55:41,056 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 482) no Hoare annotation was computed. [2020-08-18 17:55:41,056 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-08-18 17:55:41,056 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-08-18 17:55:41,057 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-08-18 17:55:41,059 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-08-18 17:55:41,059 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,059 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,059 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,062 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,062 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,062 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-08-18 17:55:41,063 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-08-18 17:55:41,063 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-08-18 17:55:41,063 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-08-18 17:55:41,063 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-08-18 17:55:41,063 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-08-18 17:55:41,064 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-08-18 17:55:41,064 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-08-18 17:55:41,064 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-08-18 17:55:41,064 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,064 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,066 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,066 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,066 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,067 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-08-18 17:55:41,067 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-08-18 17:55:41,067 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-08-18 17:55:41,067 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-08-18 17:55:41,067 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-08-18 17:55:41,068 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-08-18 17:55:41,070 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-08-18 17:55:41,070 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-08-18 17:55:41,070 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-08-18 17:55:41,071 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-08-18 17:55:41,071 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-08-18 17:55:41,071 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-08-18 17:55:41,072 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-08-18 17:55:41,072 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,072 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,072 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,072 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,072 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,073 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-08-18 17:55:41,073 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-08-18 17:55:41,073 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-08-18 17:55:41,073 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-08-18 17:55:41,073 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-08-18 17:55:41,073 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-08-18 17:55:41,074 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-08-18 17:55:41,074 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-08-18 17:55:41,074 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-08-18 17:55:41,074 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,074 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,074 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,075 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,075 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,075 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,075 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-08-18 17:55:41,075 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,076 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-08-18 17:55:41,076 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-08-18 17:55:41,076 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-08-18 17:55:41,076 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-08-18 17:55:41,076 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-08-18 17:55:41,077 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-08-18 17:55:41,077 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-08-18 17:55:41,077 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-08-18 17:55:41,077 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-08-18 17:55:41,078 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-08-18 17:55:41,078 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-08-18 17:55:41,078 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-08-18 17:55:41,078 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-08-18 17:55:41,078 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,079 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,079 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,079 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,079 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,080 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-08-18 17:55:41,081 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-08-18 17:55:41,081 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-08-18 17:55:41,081 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-08-18 17:55:41,082 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-08-18 17:55:41,082 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-08-18 17:55:41,082 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-08-18 17:55:41,083 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-08-18 17:55:41,083 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,083 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,083 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,083 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,083 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,084 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-08-18 17:55:41,084 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-08-18 17:55:41,084 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-08-18 17:55:41,084 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-08-18 17:55:41,084 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-08-18 17:55:41,084 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-08-18 17:55:41,084 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-08-18 17:55:41,085 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-08-18 17:55:41,085 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-08-18 17:55:41,086 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-08-18 17:55:41,087 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse2 (= ~a17~0 |old(~a17~0)|)) (.cse1 (= ~a7~0 |old(~a7~0)|)) (.cse3 (= ~a21~0 |old(~a21~0)|)) (.cse4 (= ~a20~0 |old(~a20~0)|)) (.cse7 (= ~a8~0 |old(~a8~0)|))) (let ((.cse0 (= |old(~a8~0)| 13)) (.cse6 (and .cse2 .cse1 .cse3 .cse4 (= ~a16~0 |old(~a16~0)|) .cse7)) (.cse5 (not (= ~a12~0 8)))) (and (or (not .cse0) (not (= |old(~a17~0)| 1)) (not (= |old(~a7~0)| 1)) (not (= |old(~a20~0)| 1)) (and .cse1 .cse2 .cse3 .cse4 (= ~a8~0 13) (= 5 ~a16~0)) (not (= 5 |old(~a16~0)|)) .cse5) (or .cse0 .cse6 .cse5) (or .cse6 (not (<= 6 |old(~a16~0)|)) .cse5) (or (and .cse2 .cse1 .cse3 .cse4 .cse7 (= ~a16~0 4)) .cse5 (not (= 4 |old(~a16~0)|)))))) [2020-08-18 17:55:41,087 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-08-18 17:55:41,087 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,087 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,087 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,088 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,088 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-08-18 17:55:41,088 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,088 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,088 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-08-18 17:55:41,091 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-08-18 17:55:41,092 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-08-18 17:55:41,092 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-08-18 17:55:41,093 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-08-18 17:55:41,093 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-08-18 17:55:41,093 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-08-18 17:55:41,093 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-08-18 17:55:41,093 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-08-18 17:55:41,094 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-08-18 17:55:41,094 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-08-18 17:55:41,094 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-08-18 17:55:41,094 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,094 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,095 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,096 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,096 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,096 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-08-18 17:55:41,096 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,096 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-08-18 17:55:41,097 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-08-18 17:55:41,097 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-08-18 17:55:41,097 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-08-18 17:55:41,097 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-08-18 17:55:41,097 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-08-18 17:55:41,098 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-08-18 17:55:41,098 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-08-18 17:55:41,098 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-08-18 17:55:41,098 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-08-18 17:55:41,098 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-08-18 17:55:41,099 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-08-18 17:55:41,099 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-08-18 17:55:41,099 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-08-18 17:55:41,099 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,099 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,100 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,100 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,100 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,100 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 17:55:41,101 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-08-18 17:55:41,101 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-08-18 17:55:41,101 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-08-18 17:55:41,101 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-08-18 17:55:41,102 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-08-18 17:55:41,102 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-08-18 17:55:41,102 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-08-18 17:55:41,102 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-08-18 17:55:41,102 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-08-18 17:55:41,103 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-08-18 17:55:41,103 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 17:55:41,103 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a16~0 5) (= ~a12~0 8) (<= 15 ~a8~0)) [2020-08-18 17:55:41,103 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 17:55:41,103 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 17:55:41,104 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (and (= ~a17~0 |old(~a17~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|)) (not (= ~a12~0 8))) [2020-08-18 17:55:41,104 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-08-18 17:55:41,104 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (or (<= 6 ~a16~0) (not (<= |old(~a16~0)| 5)) (and (= ~a7~0 1) (= ~a20~0 1) (= 5 ~a16~0) (= ~a17~0 1)) (not (<= 15 |old(~a8~0)|)) (not (= ~a8~0 13)) (= ~a16~0 4) (not (= ~a12~0 8))) [2020-08-18 17:55:41,104 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-08-18 17:55:41,105 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-08-18 17:55:41,105 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (or (<= 6 ~a16~0) (not (<= |old(~a16~0)| 5)) (and (= ~a7~0 1) (= ~a20~0 1) (= 5 ~a16~0) (= ~a17~0 1)) (not (<= 15 |old(~a8~0)|)) (not (= ~a8~0 13)) (= ~a16~0 4) (not (= ~a12~0 8))) [2020-08-18 17:55:41,105 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-08-18 17:55:41,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 05:55:41 BoogieIcfgContainer [2020-08-18 17:55:41,143 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 17:55:41,147 INFO L168 Benchmark]: Toolchain (without parser) took 14632.12 ms. Allocated memory was 145.8 MB in the beginning and 403.7 MB in the end (delta: 257.9 MB). Free memory was 99.4 MB in the beginning and 112.5 MB in the end (delta: -13.2 MB). Peak memory consumption was 244.8 MB. Max. memory is 7.1 GB. [2020-08-18 17:55:41,148 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 17:55:41,150 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.55 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 99.2 MB in the beginning and 170.1 MB in the end (delta: -71.0 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. [2020-08-18 17:55:41,157 INFO L168 Benchmark]: Boogie Preprocessor took 128.33 ms. Allocated memory is still 204.5 MB. Free memory was 170.1 MB in the beginning and 165.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-08-18 17:55:41,159 INFO L168 Benchmark]: RCFGBuilder took 1241.72 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 165.1 MB in the beginning and 178.2 MB in the end (delta: -13.1 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. [2020-08-18 17:55:41,160 INFO L168 Benchmark]: TraceAbstraction took 12487.35 ms. Allocated memory was 235.9 MB in the beginning and 403.7 MB in the end (delta: 167.8 MB). Free memory was 178.2 MB in the beginning and 112.5 MB in the end (delta: 65.6 MB). Peak memory consumption was 233.4 MB. Max. memory is 7.1 GB. [2020-08-18 17:55:41,176 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 769.55 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 99.2 MB in the beginning and 170.1 MB in the end (delta: -71.0 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.33 ms. Allocated memory is still 204.5 MB. Free memory was 170.1 MB in the beginning and 165.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1241.72 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 165.1 MB in the beginning and 178.2 MB in the end (delta: -13.1 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12487.35 ms. Allocated memory was 235.9 MB in the beginning and 403.7 MB in the end (delta: 167.8 MB). Free memory was 178.2 MB in the beginning and 112.5 MB in the end (delta: 65.6 MB). Peak memory consumption was 233.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 482]: 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: 583]: Loop Invariant Derived loop invariant: (((((6 <= a16 || !(\old(a16) <= 5)) || (((a7 == 1 && a20 == 1) && 5 == a16) && a17 == 1)) || !(15 <= \old(a8))) || !(a8 == 13)) || a16 == 4) || !(a12 == 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.1s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 151 SDtfs, 1966 SDslu, 161 SDs, 0 SdLazy, 4989 SolverSat, 787 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1394occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 441 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 44 PreInvPairs, 68 NumberOfFragments, 301 HoareAnnotationTreeSize, 44 FomulaSimplifications, 9028 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2507 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 663 NumberOfCodeBlocks, 663 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 658 ConstructedInterpolants, 0 QuantifiedInterpolants, 313110 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 110/123 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...