/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=LOWLEXORDER -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 18:43:43,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 18:43:43,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 18:43:43,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 18:43:43,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 18:43:43,935 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 18:43:43,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 18:43:43,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 18:43:43,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 18:43:43,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 18:43:43,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 18:43:43,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 18:43:43,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 18:43:43,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 18:43:43,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 18:43:43,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 18:43:43,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 18:43:43,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 18:43:43,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 18:43:43,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 18:43:43,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 18:43:43,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 18:43:43,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 18:43:43,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 18:43:43,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 18:43:43,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 18:43:43,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 18:43:43,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 18:43:43,988 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 18:43:43,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 18:43:43,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 18:43:43,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 18:43:43,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 18:43:43,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 18:43:43,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 18:43:43,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 18:43:43,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 18:43:43,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 18:43:43,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 18:43:43,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 18:43:43,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 18:43:43,998 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 18:43:44,021 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 18:43:44,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 18:43:44,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 18:43:44,023 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 18:43:44,023 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 18:43:44,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 18:43:44,023 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 18:43:44,024 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 18:43:44,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 18:43:44,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 18:43:44,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 18:43:44,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 18:43:44,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 18:43:44,025 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 18:43:44,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 18:43:44,025 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 18:43:44,025 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 18:43:44,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 18:43:44,026 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 18:43:44,026 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 18:43:44,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 18:43:44,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 18:43:44,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 18:43:44,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 18:43:44,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 18:43:44,027 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 18:43:44,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 18:43:44,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 18:43:44,028 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 18:43:44,028 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=LOWLEXORDER; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=LOWLEXORDER; [2020-08-18 18:43:44,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 18:43:44,360 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 18:43:44,364 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 18:43:44,366 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 18:43:44,366 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 18:43:44,367 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label41.c [2020-08-18 18:43:44,444 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1c256825/de40e27521f04c64a421c14b5f0fa472/FLAGa1a9171f8 [2020-08-18 18:43:45,084 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 18:43:45,085 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label41.c [2020-08-18 18:43:45,112 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1c256825/de40e27521f04c64a421c14b5f0fa472/FLAGa1a9171f8 [2020-08-18 18:43:45,283 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1c256825/de40e27521f04c64a421c14b5f0fa472 [2020-08-18 18:43:45,296 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 18:43:45,297 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 18:43:45,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 18:43:45,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 18:43:45,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 18:43:45,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 06:43:45" (1/1) ... [2020-08-18 18:43:45,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f78b0b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:43:45, skipping insertion in model container [2020-08-18 18:43:45,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 06:43:45" (1/1) ... [2020-08-18 18:43:45,321 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 18:43:45,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 18:43:45,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 18:43:45,840 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 18:43:46,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 18:43:46,095 INFO L208 MainTranslator]: Completed translation [2020-08-18 18:43:46,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:43:46 WrapperNode [2020-08-18 18:43:46,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 18:43:46,096 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 18:43:46,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 18:43:46,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 18:43:46,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:43:46" (1/1) ... [2020-08-18 18:43:46,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:43:46" (1/1) ... [2020-08-18 18:43:46,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:43:46" (1/1) ... [2020-08-18 18:43:46,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:43:46" (1/1) ... [2020-08-18 18:43:46,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:43:46" (1/1) ... [2020-08-18 18:43:46,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:43:46" (1/1) ... [2020-08-18 18:43:46,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:43:46" (1/1) ... [2020-08-18 18:43:46,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 18:43:46,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 18:43:46,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 18:43:46,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 18:43:46,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:43:46" (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 18:43:46,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 18:43:46,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 18:43:46,280 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-18 18:43:46,280 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 18:43:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-18 18:43:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 18:43:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 18:43:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-18 18:43:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 18:43:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 18:43:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 18:43:47,546 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 18:43:47,547 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-18 18:43:47,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 06:43:47 BoogieIcfgContainer [2020-08-18 18:43:47,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 18:43:47,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 18:43:47,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 18:43:47,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 18:43:47,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 06:43:45" (1/3) ... [2020-08-18 18:43:47,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df57da5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 06:43:47, skipping insertion in model container [2020-08-18 18:43:47,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:43:46" (2/3) ... [2020-08-18 18:43:47,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df57da5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 06:43:47, skipping insertion in model container [2020-08-18 18:43:47,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 06:43:47" (3/3) ... [2020-08-18 18:43:47,570 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label41.c [2020-08-18 18:43:47,582 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 18:43:47,595 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 18:43:47,611 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 18:43:47,648 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 18:43:47,649 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 18:43:47,649 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 18:43:47,649 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 18:43:47,650 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 18:43:47,650 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 18:43:47,650 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 18:43:47,650 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 18:43:47,678 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-08-18 18:43:47,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-08-18 18:43:47,694 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:43:47,695 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] [2020-08-18 18:43:47,696 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:43:47,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:43:47,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1692915649, now seen corresponding path program 1 times [2020-08-18 18:43:47,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:43:47,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1830815909] [2020-08-18 18:43:47,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:43:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:48,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:43:48,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:48,348 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 18:43:48,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1830815909] [2020-08-18 18:43:48,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 18:43:48,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 18:43:48,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179939657] [2020-08-18 18:43:48,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 18:43:48,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:43:48,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 18:43:48,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 18:43:48,377 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-08-18 18:43:49,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:43:49,848 INFO L93 Difference]: Finished difference Result 557 states and 956 transitions. [2020-08-18 18:43:49,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 18:43:49,852 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 91 [2020-08-18 18:43:49,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:43:49,882 INFO L225 Difference]: With dead ends: 557 [2020-08-18 18:43:49,883 INFO L226 Difference]: Without dead ends: 286 [2020-08-18 18:43:49,894 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-18 18:43:49,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-08-18 18:43:49,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2020-08-18 18:43:49,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-08-18 18:43:49,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 402 transitions. [2020-08-18 18:43:49,977 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 402 transitions. Word has length 91 [2020-08-18 18:43:49,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:43:49,978 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 402 transitions. [2020-08-18 18:43:49,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 18:43:49,978 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 402 transitions. [2020-08-18 18:43:49,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-08-18 18:43:49,984 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:43:49,984 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] [2020-08-18 18:43:49,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 18:43:49,985 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:43:49,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:43:49,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1768869960, now seen corresponding path program 1 times [2020-08-18 18:43:49,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:43:49,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [664789331] [2020-08-18 18:43:49,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:43:50,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:50,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:43:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:50,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 18:43:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:50,183 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 18:43:50,184 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [664789331] [2020-08-18 18:43:50,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 18:43:50,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 18:43:50,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028634328] [2020-08-18 18:43:50,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 18:43:50,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:43:50,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 18:43:50,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 18:43:50,188 INFO L87 Difference]: Start difference. First operand 280 states and 402 transitions. Second operand 8 states. [2020-08-18 18:43:51,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:43:51,567 INFO L93 Difference]: Finished difference Result 713 states and 1049 transitions. [2020-08-18 18:43:51,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 18:43:51,571 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 101 [2020-08-18 18:43:51,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:43:51,576 INFO L225 Difference]: With dead ends: 713 [2020-08-18 18:43:51,576 INFO L226 Difference]: Without dead ends: 439 [2020-08-18 18:43:51,578 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 18:43:51,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-08-18 18:43:51,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 421. [2020-08-18 18:43:51,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-08-18 18:43:51,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 590 transitions. [2020-08-18 18:43:51,622 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 590 transitions. Word has length 101 [2020-08-18 18:43:51,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:43:51,622 INFO L479 AbstractCegarLoop]: Abstraction has 421 states and 590 transitions. [2020-08-18 18:43:51,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 18:43:51,622 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 590 transitions. [2020-08-18 18:43:51,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-08-18 18:43:51,628 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:43:51,628 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] [2020-08-18 18:43:51,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 18:43:51,629 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:43:51,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:43:51,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1027824070, now seen corresponding path program 1 times [2020-08-18 18:43:51,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:43:51,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1330886154] [2020-08-18 18:43:51,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:43:51,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:51,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:43:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:51,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 18:43:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:51,840 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 18:43:51,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1330886154] [2020-08-18 18:43:51,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 18:43:51,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 18:43:51,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166724355] [2020-08-18 18:43:51,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 18:43:51,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:43:51,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 18:43:51,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 18:43:51,842 INFO L87 Difference]: Start difference. First operand 421 states and 590 transitions. Second operand 5 states. [2020-08-18 18:43:52,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:43:52,876 INFO L93 Difference]: Finished difference Result 1257 states and 1810 transitions. [2020-08-18 18:43:52,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 18:43:52,877 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2020-08-18 18:43:52,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:43:52,883 INFO L225 Difference]: With dead ends: 1257 [2020-08-18 18:43:52,884 INFO L226 Difference]: Without dead ends: 842 [2020-08-18 18:43:52,885 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 18:43:52,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2020-08-18 18:43:52,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 836. [2020-08-18 18:43:52,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 836 states. [2020-08-18 18:43:52,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1150 transitions. [2020-08-18 18:43:52,928 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1150 transitions. Word has length 102 [2020-08-18 18:43:52,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:43:52,929 INFO L479 AbstractCegarLoop]: Abstraction has 836 states and 1150 transitions. [2020-08-18 18:43:52,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 18:43:52,930 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1150 transitions. [2020-08-18 18:43:52,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-08-18 18:43:52,938 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:43:52,939 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:43:52,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 18:43:52,939 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:43:52,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:43:52,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1016446174, now seen corresponding path program 1 times [2020-08-18 18:43:52,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:43:52,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285958400] [2020-08-18 18:43:52,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:43:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:53,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:43:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:53,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 18:43:53,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:53,148 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 18:43:53,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1285958400] [2020-08-18 18:43:53,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 18:43:53,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 18:43:53,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714816511] [2020-08-18 18:43:53,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 18:43:53,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:43:53,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 18:43:53,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 18:43:53,153 INFO L87 Difference]: Start difference. First operand 836 states and 1150 transitions. Second operand 8 states. [2020-08-18 18:43:54,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:43:54,898 INFO L93 Difference]: Finished difference Result 2812 states and 4153 transitions. [2020-08-18 18:43:54,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 18:43:54,899 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 116 [2020-08-18 18:43:54,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:43:54,912 INFO L225 Difference]: With dead ends: 2812 [2020-08-18 18:43:54,912 INFO L226 Difference]: Without dead ends: 1982 [2020-08-18 18:43:54,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-08-18 18:43:54,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1982 states. [2020-08-18 18:43:54,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982 to 1543. [2020-08-18 18:43:54,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1543 states. [2020-08-18 18:43:54,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2052 transitions. [2020-08-18 18:43:54,988 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2052 transitions. Word has length 116 [2020-08-18 18:43:54,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:43:54,988 INFO L479 AbstractCegarLoop]: Abstraction has 1543 states and 2052 transitions. [2020-08-18 18:43:54,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 18:43:54,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2052 transitions. [2020-08-18 18:43:55,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-08-18 18:43:55,017 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:43:55,017 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:43:55,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 18:43:55,021 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:43:55,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:43:55,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1605716217, now seen corresponding path program 1 times [2020-08-18 18:43:55,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:43:55,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1351675865] [2020-08-18 18:43:55,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:43:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:55,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:43:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:55,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 18:43:55,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:55,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 18:43:55,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:55,221 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-18 18:43:55,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1351675865] [2020-08-18 18:43:55,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 18:43:55,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 18:43:55,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435194302] [2020-08-18 18:43:55,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 18:43:55,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:43:55,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 18:43:55,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 18:43:55,224 INFO L87 Difference]: Start difference. First operand 1543 states and 2052 transitions. Second operand 7 states. [2020-08-18 18:43:56,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:43:56,575 INFO L93 Difference]: Finished difference Result 3541 states and 4910 transitions. [2020-08-18 18:43:56,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 18:43:56,575 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 133 [2020-08-18 18:43:56,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:43:56,590 INFO L225 Difference]: With dead ends: 3541 [2020-08-18 18:43:56,590 INFO L226 Difference]: Without dead ends: 2004 [2020-08-18 18:43:56,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-08-18 18:43:56,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2004 states. [2020-08-18 18:43:56,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2004 to 1684. [2020-08-18 18:43:56,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1684 states. [2020-08-18 18:43:56,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 2237 transitions. [2020-08-18 18:43:56,678 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 2237 transitions. Word has length 133 [2020-08-18 18:43:56,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:43:56,678 INFO L479 AbstractCegarLoop]: Abstraction has 1684 states and 2237 transitions. [2020-08-18 18:43:56,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 18:43:56,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 2237 transitions. [2020-08-18 18:43:56,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-08-18 18:43:56,685 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:43:56,686 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:43:56,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 18:43:56,686 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:43:56,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:43:56,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1001122943, now seen corresponding path program 1 times [2020-08-18 18:43:56,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:43:56,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1239743426] [2020-08-18 18:43:56,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:43:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:56,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:43:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:56,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 18:43:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:56,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 18:43:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:56,912 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 52 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-18 18:43:56,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1239743426] [2020-08-18 18:43:56,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 18:43:56,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 18:43:56,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727213410] [2020-08-18 18:43:56,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 18:43:56,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:43:56,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 18:43:56,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 18:43:56,925 INFO L87 Difference]: Start difference. First operand 1684 states and 2237 transitions. Second operand 7 states. [2020-08-18 18:43:58,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:43:58,313 INFO L93 Difference]: Finished difference Result 3954 states and 5341 transitions. [2020-08-18 18:43:58,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 18:43:58,314 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 137 [2020-08-18 18:43:58,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:43:58,328 INFO L225 Difference]: With dead ends: 3954 [2020-08-18 18:43:58,328 INFO L226 Difference]: Without dead ends: 2276 [2020-08-18 18:43:58,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 18:43:58,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2276 states. [2020-08-18 18:43:58,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2276 to 1847. [2020-08-18 18:43:58,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1847 states. [2020-08-18 18:43:58,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 2416 transitions. [2020-08-18 18:43:58,393 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 2416 transitions. Word has length 137 [2020-08-18 18:43:58,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:43:58,394 INFO L479 AbstractCegarLoop]: Abstraction has 1847 states and 2416 transitions. [2020-08-18 18:43:58,394 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 18:43:58,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 2416 transitions. [2020-08-18 18:43:58,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-08-18 18:43:58,400 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:43:58,400 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:43:58,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 18:43:58,400 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:43:58,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:43:58,401 INFO L82 PathProgramCache]: Analyzing trace with hash -2028131037, now seen corresponding path program 1 times [2020-08-18 18:43:58,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:43:58,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [689751592] [2020-08-18 18:43:58,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:43:58,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:58,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:43:58,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:58,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 18:43:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:58,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 18:43:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:58,603 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 59 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-18 18:43:58,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [689751592] [2020-08-18 18:43:58,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 18:43:58,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 18:43:58,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802157720] [2020-08-18 18:43:58,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 18:43:58,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:43:58,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 18:43:58,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 18:43:58,606 INFO L87 Difference]: Start difference. First operand 1847 states and 2416 transitions. Second operand 5 states. [2020-08-18 18:43:59,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:43:59,664 INFO L93 Difference]: Finished difference Result 3698 states and 4849 transitions. [2020-08-18 18:43:59,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 18:43:59,670 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-08-18 18:43:59,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:43:59,681 INFO L225 Difference]: With dead ends: 3698 [2020-08-18 18:43:59,681 INFO L226 Difference]: Without dead ends: 1857 [2020-08-18 18:43:59,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-18 18:43:59,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1857 states. [2020-08-18 18:43:59,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1857 to 1706. [2020-08-18 18:43:59,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1706 states. [2020-08-18 18:43:59,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2118 transitions. [2020-08-18 18:43:59,743 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2118 transitions. Word has length 155 [2020-08-18 18:43:59,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:43:59,744 INFO L479 AbstractCegarLoop]: Abstraction has 1706 states and 2118 transitions. [2020-08-18 18:43:59,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 18:43:59,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2118 transitions. [2020-08-18 18:43:59,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-08-18 18:43:59,752 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:43:59,752 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 18:43:59,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 18:43:59,753 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:43:59,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:43:59,753 INFO L82 PathProgramCache]: Analyzing trace with hash 152592045, now seen corresponding path program 1 times [2020-08-18 18:43:59,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:43:59,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728995996] [2020-08-18 18:43:59,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:43:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:59,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:43:59,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:59,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 18:43:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:59,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 18:43:59,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:43:59,971 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-18 18:43:59,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728995996] [2020-08-18 18:43:59,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 18:43:59,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 18:43:59,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085504406] [2020-08-18 18:43:59,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 18:43:59,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:43:59,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 18:43:59,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 18:43:59,974 INFO L87 Difference]: Start difference. First operand 1706 states and 2118 transitions. Second operand 7 states. [2020-08-18 18:44:01,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:44:01,286 INFO L93 Difference]: Finished difference Result 4024 states and 5217 transitions. [2020-08-18 18:44:01,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 18:44:01,287 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 157 [2020-08-18 18:44:01,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:44:01,302 INFO L225 Difference]: With dead ends: 4024 [2020-08-18 18:44:01,302 INFO L226 Difference]: Without dead ends: 2324 [2020-08-18 18:44:01,310 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 18:44:01,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2324 states. [2020-08-18 18:44:01,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2324 to 2149. [2020-08-18 18:44:01,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2149 states. [2020-08-18 18:44:01,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2149 states to 2149 states and 2715 transitions. [2020-08-18 18:44:01,405 INFO L78 Accepts]: Start accepts. Automaton has 2149 states and 2715 transitions. Word has length 157 [2020-08-18 18:44:01,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:44:01,405 INFO L479 AbstractCegarLoop]: Abstraction has 2149 states and 2715 transitions. [2020-08-18 18:44:01,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 18:44:01,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2149 states and 2715 transitions. [2020-08-18 18:44:01,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-08-18 18:44:01,413 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:44:01,413 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-18 18:44:01,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-18 18:44:01,414 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:44:01,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:44:01,414 INFO L82 PathProgramCache]: Analyzing trace with hash 97285180, now seen corresponding path program 1 times [2020-08-18 18:44:01,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:44:01,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208397375] [2020-08-18 18:44:01,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:44:01,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:44:01,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:44:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:44:01,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 18:44:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:44:01,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 18:44:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:44:01,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 18:44:01,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:44:01,676 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 83 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-08-18 18:44:01,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208397375] [2020-08-18 18:44:01,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 18:44:01,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 18:44:01,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636667864] [2020-08-18 18:44:01,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 18:44:01,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:44:01,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 18:44:01,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 18:44:01,689 INFO L87 Difference]: Start difference. First operand 2149 states and 2715 transitions. Second operand 7 states. [2020-08-18 18:44:03,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:44:03,241 INFO L93 Difference]: Finished difference Result 4715 states and 5963 transitions. [2020-08-18 18:44:03,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 18:44:03,241 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 173 [2020-08-18 18:44:03,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:44:03,252 INFO L225 Difference]: With dead ends: 4715 [2020-08-18 18:44:03,252 INFO L226 Difference]: Without dead ends: 2572 [2020-08-18 18:44:03,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-08-18 18:44:03,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2572 states. [2020-08-18 18:44:03,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2572 to 2560. [2020-08-18 18:44:03,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2560 states. [2020-08-18 18:44:03,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2560 states to 2560 states and 3171 transitions. [2020-08-18 18:44:03,325 INFO L78 Accepts]: Start accepts. Automaton has 2560 states and 3171 transitions. Word has length 173 [2020-08-18 18:44:03,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:44:03,326 INFO L479 AbstractCegarLoop]: Abstraction has 2560 states and 3171 transitions. [2020-08-18 18:44:03,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 18:44:03,326 INFO L276 IsEmpty]: Start isEmpty. Operand 2560 states and 3171 transitions. [2020-08-18 18:44:03,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-08-18 18:44:03,334 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:44:03,334 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-18 18:44:03,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-18 18:44:03,335 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:44:03,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:44:03,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1408801773, now seen corresponding path program 1 times [2020-08-18 18:44:03,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:44:03,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1553454097] [2020-08-18 18:44:03,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:44:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:44:03,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:44:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:44:03,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 18:44:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:44:03,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 18:44:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:44:03,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-18 18:44:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:44:03,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-18 18:44:03,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:44:03,596 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 108 proven. 26 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-08-18 18:44:03,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1553454097] [2020-08-18 18:44:03,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 18:44:03,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 18:44:03,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251815061] [2020-08-18 18:44:03,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 18:44:03,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:44:03,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 18:44:03,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 18:44:03,599 INFO L87 Difference]: Start difference. First operand 2560 states and 3171 transitions. Second operand 7 states. [2020-08-18 18:44:04,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:44:04,880 INFO L93 Difference]: Finished difference Result 5009 states and 6283 transitions. [2020-08-18 18:44:04,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 18:44:04,882 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2020-08-18 18:44:04,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:44:04,892 INFO L225 Difference]: With dead ends: 5009 [2020-08-18 18:44:04,893 INFO L226 Difference]: Without dead ends: 2590 [2020-08-18 18:44:04,899 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 18:44:04,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2590 states. [2020-08-18 18:44:04,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2590 to 2292. [2020-08-18 18:44:04,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2292 states. [2020-08-18 18:44:04,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2292 states to 2292 states and 2804 transitions. [2020-08-18 18:44:04,963 INFO L78 Accepts]: Start accepts. Automaton has 2292 states and 2804 transitions. Word has length 195 [2020-08-18 18:44:04,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:44:04,964 INFO L479 AbstractCegarLoop]: Abstraction has 2292 states and 2804 transitions. [2020-08-18 18:44:04,964 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 18:44:04,964 INFO L276 IsEmpty]: Start isEmpty. Operand 2292 states and 2804 transitions. [2020-08-18 18:44:04,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-08-18 18:44:04,971 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:44:04,971 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-08-18 18:44:04,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-18 18:44:04,972 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:44:04,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:44:04,972 INFO L82 PathProgramCache]: Analyzing trace with hash 740758918, now seen corresponding path program 1 times [2020-08-18 18:44:04,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:44:04,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [819427878] [2020-08-18 18:44:04,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:44:05,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:44:05,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:44:05,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:44:05,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 18:44:05,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:44:05,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 18:44:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:44:05,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-08-18 18:44:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:44:05,257 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-08-18 18:44:05,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [819427878] [2020-08-18 18:44:05,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 18:44:05,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 18:44:05,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485982791] [2020-08-18 18:44:05,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 18:44:05,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:44:05,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 18:44:05,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 18:44:05,262 INFO L87 Difference]: Start difference. First operand 2292 states and 2804 transitions. Second operand 5 states. [2020-08-18 18:44:06,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:44:06,375 INFO L93 Difference]: Finished difference Result 4443 states and 5460 transitions. [2020-08-18 18:44:06,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 18:44:06,378 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 207 [2020-08-18 18:44:06,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:44:06,379 INFO L225 Difference]: With dead ends: 4443 [2020-08-18 18:44:06,379 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 18:44:06,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-18 18:44:06,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 18:44:06,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 18:44:06,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 18:44:06,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 18:44:06,388 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 207 [2020-08-18 18:44:06,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:44:06,388 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 18:44:06,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 18:44:06,389 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 18:44:06,389 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 18:44:06,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-18 18:44:06,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 18:44:06,922 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 125 [2020-08-18 18:44:07,100 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 125 [2020-08-18 18:44:07,960 WARN L193 SmtUtils]: Spent 759.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 48 [2020-08-18 18:44:08,348 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 40 [2020-08-18 18:44:08,684 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 40 [2020-08-18 18:44:08,687 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-18 18:44:08,688 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 18:44:08,688 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 18:44:08,688 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-08-18 18:44:08,688 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-08-18 18:44:08,688 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,688 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,689 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,689 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,689 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,689 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,689 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-08-18 18:44:08,689 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-08-18 18:44:08,689 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-08-18 18:44:08,689 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-08-18 18:44:08,690 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-08-18 18:44:08,691 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-08-18 18:44:08,692 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-08-18 18:44:08,692 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-08-18 18:44:08,692 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-08-18 18:44:08,692 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-08-18 18:44:08,694 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,694 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,694 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,694 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,694 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,694 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,694 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-08-18 18:44:08,695 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-08-18 18:44:08,695 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-08-18 18:44:08,695 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-08-18 18:44:08,695 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-08-18 18:44:08,695 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-08-18 18:44:08,695 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-08-18 18:44:08,695 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-08-18 18:44:08,695 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-08-18 18:44:08,695 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-08-18 18:44:08,696 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-08-18 18:44:08,696 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 431) no Hoare annotation was computed. [2020-08-18 18:44:08,696 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-08-18 18:44:08,696 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-08-18 18:44:08,696 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-08-18 18:44:08,696 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-08-18 18:44:08,696 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,696 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,697 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,697 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,697 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,697 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-08-18 18:44:08,697 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-08-18 18:44:08,697 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-08-18 18:44:08,697 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-08-18 18:44:08,697 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-08-18 18:44:08,697 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-08-18 18:44:08,698 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-08-18 18:44:08,698 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-08-18 18:44:08,698 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-08-18 18:44:08,699 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,699 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,700 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,700 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,700 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,700 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-08-18 18:44:08,702 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-08-18 18:44:08,703 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-08-18 18:44:08,703 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-08-18 18:44:08,703 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-08-18 18:44:08,703 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-08-18 18:44:08,703 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-08-18 18:44:08,703 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-08-18 18:44:08,703 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-08-18 18:44:08,703 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-08-18 18:44:08,704 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-08-18 18:44:08,704 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-08-18 18:44:08,704 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-08-18 18:44:08,704 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,704 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,704 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,704 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,704 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,704 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-08-18 18:44:08,704 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-08-18 18:44:08,705 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-08-18 18:44:08,705 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-08-18 18:44:08,705 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-08-18 18:44:08,705 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-08-18 18:44:08,705 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-08-18 18:44:08,705 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-08-18 18:44:08,705 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-08-18 18:44:08,705 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,705 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,706 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,706 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,706 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,706 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,706 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-08-18 18:44:08,706 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,706 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-08-18 18:44:08,706 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-08-18 18:44:08,707 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-08-18 18:44:08,707 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-08-18 18:44:08,707 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-08-18 18:44:08,707 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-08-18 18:44:08,707 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-08-18 18:44:08,707 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-08-18 18:44:08,707 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-08-18 18:44:08,707 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-08-18 18:44:08,707 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-08-18 18:44:08,707 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-08-18 18:44:08,708 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-08-18 18:44:08,708 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,708 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,708 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,708 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,708 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,710 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-08-18 18:44:08,710 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-08-18 18:44:08,710 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-08-18 18:44:08,710 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-08-18 18:44:08,710 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-08-18 18:44:08,710 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-08-18 18:44:08,710 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-08-18 18:44:08,711 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-08-18 18:44:08,713 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,713 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,713 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,714 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,714 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,714 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-08-18 18:44:08,714 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-08-18 18:44:08,714 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-08-18 18:44:08,714 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-08-18 18:44:08,714 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-08-18 18:44:08,715 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-08-18 18:44:08,715 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-08-18 18:44:08,715 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-08-18 18:44:08,715 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-08-18 18:44:08,715 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-08-18 18:44:08,716 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse4 (= |old(~a21~0)| 1)) (.cse11 (= ~a17~0 |old(~a17~0)|)) (.cse6 (= ~a7~0 |old(~a7~0)|)) (.cse7 (= ~a21~0 |old(~a21~0)|)) (.cse8 (= ~a20~0 |old(~a20~0)|)) (.cse9 (= ~a16~0 |old(~a16~0)|)) (.cse10 (= ~a8~0 |old(~a8~0)|))) (let ((.cse1 (and .cse11 .cse6 .cse7 .cse8 .cse9 .cse10)) (.cse2 (= |old(~a17~0)| 1)) (.cse3 (not (= |old(~a20~0)| 1))) (.cse5 (not .cse4)) (.cse0 (not (<= |old(~a16~0)| 5)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse1 .cse2) (or .cse0 .cse1 .cse4) (or (not (<= 15 |old(~a8~0)|)) .cse1 .cse5) (or (and .cse6 .cse7 .cse8 .cse9 .cse10 (= ~a17~0 1)) (not .cse2) .cse3 .cse5) (or (= |old(~a8~0)| 13) .cse0 (and .cse11 .cse6 .cse8 .cse7 .cse9 .cse10))))) [2020-08-18 18:44:08,716 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-08-18 18:44:08,716 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,716 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,716 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,716 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,716 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-08-18 18:44:08,717 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,717 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,717 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-08-18 18:44:08,717 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-08-18 18:44:08,717 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-08-18 18:44:08,717 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-08-18 18:44:08,717 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-08-18 18:44:08,717 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-08-18 18:44:08,717 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-08-18 18:44:08,717 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-08-18 18:44:08,718 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-08-18 18:44:08,718 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-08-18 18:44:08,718 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-08-18 18:44:08,718 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-08-18 18:44:08,718 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,718 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,718 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,718 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,718 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,719 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-08-18 18:44:08,719 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,719 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-08-18 18:44:08,719 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-08-18 18:44:08,719 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-08-18 18:44:08,719 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-08-18 18:44:08,719 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-08-18 18:44:08,719 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-08-18 18:44:08,719 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-08-18 18:44:08,719 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-08-18 18:44:08,720 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-08-18 18:44:08,720 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-08-18 18:44:08,720 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-08-18 18:44:08,720 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-08-18 18:44:08,720 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-08-18 18:44:08,720 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-08-18 18:44:08,720 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,720 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,721 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,721 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,721 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,721 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 18:44:08,721 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-08-18 18:44:08,721 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-08-18 18:44:08,721 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-08-18 18:44:08,721 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-08-18 18:44:08,721 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-08-18 18:44:08,722 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-08-18 18:44:08,722 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-08-18 18:44:08,722 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-08-18 18:44:08,722 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-08-18 18:44:08,722 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-08-18 18:44:08,722 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 18:44:08,722 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a20~0 1) (= 5 ~a16~0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-08-18 18:44:08,722 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 18:44:08,723 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 18:44:08,723 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 |old(~a8~0)|) (= 5 ~a16~0)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1))) [2020-08-18 18:44:08,723 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-08-18 18:44:08,723 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (not (= ~a17~0 1))) (.cse3 (<= ~a16~0 5)) (.cse2 (= ~a21~0 1)) (.cse1 (= ~a20~0 1))) (or (and .cse0 .cse1) (not (= |old(~a17~0)| 1)) (and .cse2 (<= 15 ~a8~0)) (and .cse3 (not (= ~a8~0 13))) (and .cse3 .cse0) (not (<= 15 |old(~a8~0)|)) (and .cse3 (not .cse2)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (and .cse2 .cse1) (not (= |old(~a21~0)| 1)))) [2020-08-18 18:44:08,723 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-08-18 18:44:08,723 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-08-18 18:44:08,724 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (not (= ~a17~0 1))) (.cse3 (<= ~a16~0 5)) (.cse2 (= ~a21~0 1)) (.cse1 (= ~a20~0 1))) (or (and .cse0 .cse1) (not (= |old(~a17~0)| 1)) (and .cse2 (<= 15 ~a8~0)) (and .cse3 (not (= ~a8~0 13))) (and .cse3 .cse0) (not (<= 15 |old(~a8~0)|)) (and .cse3 (not .cse2)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (and .cse2 .cse1) (not (= |old(~a21~0)| 1)))) [2020-08-18 18:44:08,724 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-08-18 18:44:08,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 06:44:08 BoogieIcfgContainer [2020-08-18 18:44:08,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 18:44:08,759 INFO L168 Benchmark]: Toolchain (without parser) took 23461.44 ms. Allocated memory was 140.5 MB in the beginning and 559.9 MB in the end (delta: 419.4 MB). Free memory was 100.3 MB in the beginning and 402.0 MB in the end (delta: -301.7 MB). Peak memory consumption was 391.9 MB. Max. memory is 7.1 GB. [2020-08-18 18:44:08,763 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-18 18:44:08,766 INFO L168 Benchmark]: CACSL2BoogieTranslator took 795.34 ms. Allocated memory was 140.5 MB in the beginning and 206.0 MB in the end (delta: 65.5 MB). Free memory was 100.1 MB in the beginning and 172.3 MB in the end (delta: -72.2 MB). Peak memory consumption was 34.3 MB. Max. memory is 7.1 GB. [2020-08-18 18:44:08,767 INFO L168 Benchmark]: Boogie Preprocessor took 115.23 ms. Allocated memory is still 206.0 MB. Free memory was 172.3 MB in the beginning and 166.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2020-08-18 18:44:08,768 INFO L168 Benchmark]: RCFGBuilder took 1346.38 ms. Allocated memory was 206.0 MB in the beginning and 240.1 MB in the end (delta: 34.1 MB). Free memory was 166.9 MB in the beginning and 178.8 MB in the end (delta: -11.9 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. [2020-08-18 18:44:08,774 INFO L168 Benchmark]: TraceAbstraction took 21196.73 ms. Allocated memory was 240.1 MB in the beginning and 559.9 MB in the end (delta: 319.8 MB). Free memory was 178.8 MB in the beginning and 402.0 MB in the end (delta: -223.2 MB). Peak memory consumption was 370.7 MB. Max. memory is 7.1 GB. [2020-08-18 18:44:08,781 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 795.34 ms. Allocated memory was 140.5 MB in the beginning and 206.0 MB in the end (delta: 65.5 MB). Free memory was 100.1 MB in the beginning and 172.3 MB in the end (delta: -72.2 MB). Peak memory consumption was 34.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.23 ms. Allocated memory is still 206.0 MB. Free memory was 172.3 MB in the beginning and 166.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1346.38 ms. Allocated memory was 206.0 MB in the beginning and 240.1 MB in the end (delta: 34.1 MB). Free memory was 166.9 MB in the beginning and 178.8 MB in the end (delta: -11.9 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21196.73 ms. Allocated memory was 240.1 MB in the beginning and 559.9 MB in the end (delta: 319.8 MB). Free memory was 178.8 MB in the beginning and 402.0 MB in the end (delta: -223.2 MB). Peak memory consumption was 370.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 431]: 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: ((((((((((!(a17 == 1) && a20 == 1) || !(\old(a17) == 1)) || (a21 == 1 && 15 <= a8)) || (a16 <= 5 && !(a8 == 13))) || (a16 <= 5 && !(a17 == 1))) || !(15 <= \old(a8))) || (a16 <= 5 && !(a21 == 1))) || !(\old(a20) == 1)) || !(5 == \old(a16))) || (a21 == 1 && a20 == 1)) || !(\old(a21) == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.7s, OverallIterations: 11, TraceHistogramMax: 5, AutomataDifference: 14.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 283 SDtfs, 4573 SDslu, 393 SDs, 0 SdLazy, 8093 SolverSat, 1462 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 83 SyntacticMatches, 2 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2560occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 1854 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 129 PreInvPairs, 161 NumberOfFragments, 418 HoareAnnotationTreeSize, 129 FomulaSimplifications, 354940 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 11399 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1567 NumberOfCodeBlocks, 1567 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1556 ConstructedInterpolants, 0 QuantifiedInterpolants, 613673 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 688/734 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...