/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 false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label57.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 13:22:39,900 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-08-21 13:22:39,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 13:22:39,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 13:22:39,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 13:22:39,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 13:22:39,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 13:22:39,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 13:22:39,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 13:22:39,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 13:22:39,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 13:22:39,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 13:22:39,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 13:22:39,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 13:22:39,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-21 13:22:39,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 13:22:39,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 13:22:39,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 13:22:39,962 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 [2020-08-21 13:22:39,985 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 13:22:39,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 13:22:39,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 13:22:39,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 13:22:39,987 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 13:22:39,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 13:22:39,988 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 13:22:39,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 13:22:39,988 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 13:22:39,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 13:22:39,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 13:22:39,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 13:22:39,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 13:22:39,989 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 13:22:39,989 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 13:22:39,989 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 13:22:39,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 13:22:39,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 13:22:39,990 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 13:22:39,990 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 13:22:39,990 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 13:22:39,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 13:22:39,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 13:22:39,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 13:22:39,991 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 13:22:39,991 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 13:22:39,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 13:22:39,992 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 13:22:39,992 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 13:22:39,992 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 -> false [2020-08-21 13:22:40,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 13:22:40,293 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 13:22:40,297 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 13:22:40,298 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 13:22:40,299 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 13:22:40,299 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label57.c [2020-08-21 13:22:40,365 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/14ff240fb/a194fb4738504eeaa70526fabebd7799/FLAG991e529e3 [2020-08-21 13:22:40,931 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 13:22:40,932 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label57.c [2020-08-21 13:22:40,944 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/14ff240fb/a194fb4738504eeaa70526fabebd7799/FLAG991e529e3 [2020-08-21 13:22:41,161 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/14ff240fb/a194fb4738504eeaa70526fabebd7799 [2020-08-21 13:22:41,175 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 13:22:41,177 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 13:22:41,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 13:22:41,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 13:22:41,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 13:22:41,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:22:41" (1/1) ... [2020-08-21 13:22:41,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2721f901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:22:41, skipping insertion in model container [2020-08-21 13:22:41,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:22:41" (1/1) ... [2020-08-21 13:22:41,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 13:22:41,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 13:22:41,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:22:41,871 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 13:22:41,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:22:41,990 INFO L208 MainTranslator]: Completed translation [2020-08-21 13:22:41,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:22:41 WrapperNode [2020-08-21 13:22:41,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 13:22:41,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 13:22:41,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 13:22:41,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 13:22:42,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:22:41" (1/1) ... [2020-08-21 13:22:42,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:22:41" (1/1) ... [2020-08-21 13:22:42,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:22:41" (1/1) ... [2020-08-21 13:22:42,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:22:41" (1/1) ... [2020-08-21 13:22:42,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:22:41" (1/1) ... [2020-08-21 13:22:42,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:22:41" (1/1) ... [2020-08-21 13:22:42,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:22:41" (1/1) ... [2020-08-21 13:22:42,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 13:22:42,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 13:22:42,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 13:22:42,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 13:22:42,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:22:41" (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 [2020-08-21 13:22:42,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 13:22:42,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 13:22:42,184 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-21 13:22:42,184 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 13:22:42,184 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-21 13:22:42,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 13:22:42,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 13:22:42,185 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-21 13:22:42,185 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 13:22:42,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 13:22:42,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 13:22:43,338 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 13:22:43,339 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 13:22:43,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:22:43 BoogieIcfgContainer [2020-08-21 13:22:43,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 13:22:43,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 13:22:43,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 13:22:43,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 13:22:43,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 01:22:41" (1/3) ... [2020-08-21 13:22:43,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d769790 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:22:43, skipping insertion in model container [2020-08-21 13:22:43,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:22:41" (2/3) ... [2020-08-21 13:22:43,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d769790 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:22:43, skipping insertion in model container [2020-08-21 13:22:43,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:22:43" (3/3) ... [2020-08-21 13:22:43,354 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label57.c [2020-08-21 13:22:43,365 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 13:22:43,373 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 13:22:43,388 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 13:22:43,415 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 13:22:43,415 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 13:22:43,415 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 13:22:43,416 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 13:22:43,416 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 13:22:43,416 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 13:22:43,416 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 13:22:43,417 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 13:22:43,442 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-08-21 13:22:43,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-08-21 13:22:43,459 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:22:43,460 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:22:43,460 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:22:43,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:22:43,467 INFO L82 PathProgramCache]: Analyzing trace with hash -667012847, now seen corresponding path program 1 times [2020-08-21 13:22:43,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:22:43,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [687543270] [2020-08-21 13:22:43,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:22:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:22:43,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:22:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:22:43,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:22:43,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [687543270] [2020-08-21 13:22:43,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:22:43,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 13:22:43,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869484847] [2020-08-21 13:22:43,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 13:22:43,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:22:44,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 13:22:44,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 13:22:44,005 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 5 states. [2020-08-21 13:22:46,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:22:46,255 INFO L93 Difference]: Finished difference Result 813 states and 1406 transitions. [2020-08-21 13:22:46,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 13:22:46,258 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2020-08-21 13:22:46,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:22:46,277 INFO L225 Difference]: With dead ends: 813 [2020-08-21 13:22:46,277 INFO L226 Difference]: Without dead ends: 488 [2020-08-21 13:22:46,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-21 13:22:46,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2020-08-21 13:22:46,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 481. [2020-08-21 13:22:46,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-08-21 13:22:46,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 692 transitions. [2020-08-21 13:22:46,385 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 692 transitions. Word has length 97 [2020-08-21 13:22:46,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:22:46,386 INFO L479 AbstractCegarLoop]: Abstraction has 481 states and 692 transitions. [2020-08-21 13:22:46,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 13:22:46,386 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 692 transitions. [2020-08-21 13:22:46,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-08-21 13:22:46,393 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:22:46,393 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:22:46,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 13:22:46,394 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:22:46,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:22:46,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1818961066, now seen corresponding path program 1 times [2020-08-21 13:22:46,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:22:46,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [398818830] [2020-08-21 13:22:46,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:22:46,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:22:46,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:22:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:22:46,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 13:22:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:22:46,668 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:22:46,668 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [398818830] [2020-08-21 13:22:46,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 13:22:46,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-21 13:22:46,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627389653] [2020-08-21 13:22:46,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 13:22:46,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:22:46,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 13:22:46,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 13:22:46,672 INFO L87 Difference]: Start difference. First operand 481 states and 692 transitions. Second operand 5 states. [2020-08-21 13:22:47,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:22:47,942 INFO L93 Difference]: Finished difference Result 1402 states and 2060 transitions. [2020-08-21 13:22:47,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 13:22:47,945 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 105 [2020-08-21 13:22:47,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:22:47,953 INFO L225 Difference]: With dead ends: 1402 [2020-08-21 13:22:47,953 INFO L226 Difference]: Without dead ends: 927 [2020-08-21 13:22:47,956 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 [2020-08-21 13:22:47,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2020-08-21 13:22:48,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 920. [2020-08-21 13:22:48,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 920 states. [2020-08-21 13:22:48,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1270 transitions. [2020-08-21 13:22:48,016 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1270 transitions. Word has length 105 [2020-08-21 13:22:48,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:22:48,017 INFO L479 AbstractCegarLoop]: Abstraction has 920 states and 1270 transitions. [2020-08-21 13:22:48,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 13:22:48,017 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1270 transitions. [2020-08-21 13:22:48,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-08-21 13:22:48,025 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:22:48,025 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:22:48,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 13:22:48,025 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:22:48,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:22:48,026 INFO L82 PathProgramCache]: Analyzing trace with hash 121121017, now seen corresponding path program 1 times [2020-08-21 13:22:48,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:22:48,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2049533477] [2020-08-21 13:22:48,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:22:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:22:48,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:22:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:22:48,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 13:22:48,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:22:48,182 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:22:48,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2049533477] [2020-08-21 13:22:48,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:22:48,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 13:22:48,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327719414] [2020-08-21 13:22:48,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 13:22:48,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:22:48,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 13:22:48,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-21 13:22:48,185 INFO L87 Difference]: Start difference. First operand 920 states and 1270 transitions. Second operand 8 states. [2020-08-21 13:22:50,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:22:50,363 INFO L93 Difference]: Finished difference Result 3684 states and 5428 transitions. [2020-08-21 13:22:50,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 13:22:50,364 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 119 [2020-08-21 13:22:50,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:22:50,384 INFO L225 Difference]: With dead ends: 3684 [2020-08-21 13:22:50,384 INFO L226 Difference]: Without dead ends: 2770 [2020-08-21 13:22:50,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-08-21 13:22:50,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2020-08-21 13:22:50,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2711. [2020-08-21 13:22:50,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2711 states. [2020-08-21 13:22:50,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2711 states to 2711 states and 3729 transitions. [2020-08-21 13:22:50,495 INFO L78 Accepts]: Start accepts. Automaton has 2711 states and 3729 transitions. Word has length 119 [2020-08-21 13:22:50,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:22:50,496 INFO L479 AbstractCegarLoop]: Abstraction has 2711 states and 3729 transitions. [2020-08-21 13:22:50,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 13:22:50,496 INFO L276 IsEmpty]: Start isEmpty. Operand 2711 states and 3729 transitions. [2020-08-21 13:22:50,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-08-21 13:22:50,507 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:22:50,508 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:22:50,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 13:22:50,508 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:22:50,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:22:50,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1752648306, now seen corresponding path program 1 times [2020-08-21 13:22:50,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:22:50,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [911690655] [2020-08-21 13:22:50,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:22:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:22:50,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:22:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:22:50,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 13:22:50,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:22:50,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 13:22:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:22:50,774 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-21 13:22:50,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [911690655] [2020-08-21 13:22:50,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 13:22:50,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-21 13:22:50,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703772178] [2020-08-21 13:22:50,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 13:22:50,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:22:50,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 13:22:50,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-08-21 13:22:50,780 INFO L87 Difference]: Start difference. First operand 2711 states and 3729 transitions. Second operand 9 states. [2020-08-21 13:22:52,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:22:52,638 INFO L93 Difference]: Finished difference Result 5741 states and 8183 transitions. [2020-08-21 13:22:52,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 13:22:52,639 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 138 [2020-08-21 13:22:52,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:22:52,661 INFO L225 Difference]: With dead ends: 5741 [2020-08-21 13:22:52,661 INFO L226 Difference]: Without dead ends: 3036 [2020-08-21 13:22:52,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-08-21 13:22:52,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3036 states. [2020-08-21 13:22:52,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3036 to 2255. [2020-08-21 13:22:52,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2255 states. [2020-08-21 13:22:52,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 3000 transitions. [2020-08-21 13:22:52,783 INFO L78 Accepts]: Start accepts. Automaton has 2255 states and 3000 transitions. Word has length 138 [2020-08-21 13:22:52,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:22:52,784 INFO L479 AbstractCegarLoop]: Abstraction has 2255 states and 3000 transitions. [2020-08-21 13:22:52,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 13:22:52,784 INFO L276 IsEmpty]: Start isEmpty. Operand 2255 states and 3000 transitions. [2020-08-21 13:22:52,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-08-21 13:22:52,790 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:22:52,790 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:22:52,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 13:22:52,791 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:22:52,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:22:52,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1536539203, now seen corresponding path program 1 times [2020-08-21 13:22:52,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:22:52,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1328821696] [2020-08-21 13:22:52,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:22:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:22:52,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:22:52,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:22:52,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 13:22:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:22:52,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-21 13:22:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:22:53,002 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 52 proven. 23 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-21 13:22:53,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1328821696] [2020-08-21 13:22:53,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 13:22:53,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-21 13:22:53,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181186841] [2020-08-21 13:22:53,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 13:22:53,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:22:53,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 13:22:53,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-21 13:22:53,005 INFO L87 Difference]: Start difference. First operand 2255 states and 3000 transitions. Second operand 8 states. [2020-08-21 13:22:54,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:22:54,718 INFO L93 Difference]: Finished difference Result 6442 states and 8820 transitions. [2020-08-21 13:22:54,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 13:22:54,719 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 155 [2020-08-21 13:22:54,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:22:54,719 INFO L225 Difference]: With dead ends: 6442 [2020-08-21 13:22:54,720 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 13:22:54,734 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-08-21 13:22:54,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 13:22:54,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 13:22:54,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 13:22:54,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 13:22:54,735 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 155 [2020-08-21 13:22:54,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:22:54,735 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 13:22:54,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 13:22:54,736 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 13:22:54,737 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 13:22:54,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 13:22:54,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 13:22:55,472 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 30 [2020-08-21 13:22:55,674 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 13:22:55,675 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-08-21 13:22:55,675 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 13:22:55,676 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,676 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,676 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,676 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,676 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,677 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-08-21 13:22:55,677 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-08-21 13:22:55,677 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-08-21 13:22:55,677 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-08-21 13:22:55,677 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-08-21 13:22:55,678 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-08-21 13:22:55,678 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-08-21 13:22:55,678 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-08-21 13:22:55,678 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-08-21 13:22:55,678 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-08-21 13:22:55,678 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-08-21 13:22:55,679 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-08-21 13:22:55,679 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-08-21 13:22:55,679 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,679 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,679 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,680 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,680 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-08-21 13:22:55,680 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,680 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-08-21 13:22:55,680 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-08-21 13:22:55,681 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-08-21 13:22:55,681 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-08-21 13:22:55,681 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-08-21 13:22:55,681 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-08-21 13:22:55,681 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-08-21 13:22:55,682 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-08-21 13:22:55,682 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-08-21 13:22:55,682 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-08-21 13:22:55,682 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-08-21 13:22:55,682 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-08-21 13:22:55,682 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-08-21 13:22:55,683 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-08-21 13:22:55,683 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-08-21 13:22:55,683 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,683 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,683 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,684 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,684 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,684 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 445) no Hoare annotation was computed. [2020-08-21 13:22:55,684 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-08-21 13:22:55,684 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-08-21 13:22:55,685 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-08-21 13:22:55,685 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-08-21 13:22:55,685 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-08-21 13:22:55,685 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-08-21 13:22:55,685 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-08-21 13:22:55,685 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-08-21 13:22:55,686 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-08-21 13:22:55,686 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-08-21 13:22:55,686 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-08-21 13:22:55,686 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,686 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,687 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,687 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,687 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,687 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-08-21 13:22:55,687 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-08-21 13:22:55,687 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-08-21 13:22:55,688 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-08-21 13:22:55,688 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-08-21 13:22:55,688 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-08-21 13:22:55,688 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-08-21 13:22:55,688 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-08-21 13:22:55,688 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-08-21 13:22:55,689 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-08-21 13:22:55,689 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-08-21 13:22:55,689 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-08-21 13:22:55,689 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-08-21 13:22:55,689 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,689 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,690 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,690 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,690 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,690 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-08-21 13:22:55,690 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-08-21 13:22:55,690 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-08-21 13:22:55,691 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-08-21 13:22:55,691 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-08-21 13:22:55,691 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-08-21 13:22:55,691 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-08-21 13:22:55,691 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-08-21 13:22:55,691 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-08-21 13:22:55,692 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-08-21 13:22:55,692 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-08-21 13:22:55,692 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-08-21 13:22:55,692 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-08-21 13:22:55,692 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-08-21 13:22:55,693 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-08-21 13:22:55,693 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-08-21 13:22:55,693 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,693 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,693 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,693 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,694 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-08-21 13:22:55,694 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,694 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-08-21 13:22:55,694 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,694 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-08-21 13:22:55,694 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-08-21 13:22:55,695 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-08-21 13:22:55,695 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,695 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,695 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-08-21 13:22:55,695 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-08-21 13:22:55,695 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-08-21 13:22:55,696 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-08-21 13:22:55,696 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-08-21 13:22:55,696 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-08-21 13:22:55,696 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-08-21 13:22:55,696 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-08-21 13:22:55,696 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-08-21 13:22:55,696 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-08-21 13:22:55,697 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-08-21 13:22:55,697 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,697 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,697 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,697 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,697 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,698 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,698 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-08-21 13:22:55,698 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-08-21 13:22:55,698 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-08-21 13:22:55,698 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-08-21 13:22:55,698 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-08-21 13:22:55,699 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-08-21 13:22:55,699 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-08-21 13:22:55,699 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-08-21 13:22:55,699 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-08-21 13:22:55,699 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-08-21 13:22:55,699 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-08-21 13:22:55,700 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,700 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,700 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,700 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,700 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,701 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,701 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-08-21 13:22:55,701 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-08-21 13:22:55,701 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-08-21 13:22:55,701 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-08-21 13:22:55,702 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-08-21 13:22:55,702 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-08-21 13:22:55,702 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-08-21 13:22:55,702 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-08-21 13:22:55,702 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-08-21 13:22:55,702 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-08-21 13:22:55,703 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-08-21 13:22:55,703 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-08-21 13:22:55,703 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-08-21 13:22:55,703 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-08-21 13:22:55,703 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,704 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,704 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,704 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse0 (not (<= |old(~a17~0)| 8))) (.cse1 (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a19~0 |old(~a19~0)|)))) (and (or .cse0 (not (= |old(~a19~0)| 1)) .cse1) (or .cse0 .cse1 (= 11 |old(~a28~0)|)))) [2020-08-21 13:22:55,704 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,707 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,707 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,707 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-08-21 13:22:55,707 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-08-21 13:22:55,708 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-08-21 13:22:55,708 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-08-21 13:22:55,708 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-08-21 13:22:55,708 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-08-21 13:22:55,708 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-08-21 13:22:55,708 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-08-21 13:22:55,709 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-08-21 13:22:55,709 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-08-21 13:22:55,709 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-08-21 13:22:55,709 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-08-21 13:22:55,709 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-08-21 13:22:55,709 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,710 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,710 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,710 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,710 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,710 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,710 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-08-21 13:22:55,711 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-08-21 13:22:55,714 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-08-21 13:22:55,714 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-08-21 13:22:55,714 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-08-21 13:22:55,714 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-08-21 13:22:55,715 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-08-21 13:22:55,715 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-08-21 13:22:55,715 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-08-21 13:22:55,715 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-08-21 13:22:55,715 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-08-21 13:22:55,715 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-08-21 13:22:55,716 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-08-21 13:22:55,716 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-08-21 13:22:55,716 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-08-21 13:22:55,716 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-08-21 13:22:55,716 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,716 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,717 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,720 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,720 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 13:22:55,720 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-08-21 13:22:55,720 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-08-21 13:22:55,721 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-08-21 13:22:55,721 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-08-21 13:22:55,721 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-08-21 13:22:55,721 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-08-21 13:22:55,721 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-08-21 13:22:55,721 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-08-21 13:22:55,721 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-08-21 13:22:55,722 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-08-21 13:22:55,722 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-08-21 13:22:55,723 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-08-21 13:22:55,723 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-08-21 13:22:55,723 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-08-21 13:22:55,723 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-08-21 13:22:55,723 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-08-21 13:22:55,723 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-08-21 13:22:55,724 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-08-21 13:22:55,724 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-08-21 13:22:55,724 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 13:22:55,724 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a11~0 0) (= ~a19~0 1) (= ~a17~0 8) (<= ~a28~0 7) (<= ~a25~0 0)) [2020-08-21 13:22:55,724 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 13:22:55,724 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 13:22:55,725 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (= |old(~a19~0)| 1)) (and (= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8) (= ~a19~0 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (<= |old(~a11~0)| 0))) [2020-08-21 13:22:55,726 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (<= |old(~a28~0)| 7)) (not (= |old(~a19~0)| 1)) (and .cse0 (not (= ~a28~0 11))) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and (= ~a19~0 1) .cse0) (not (<= |old(~a11~0)| 0)))) [2020-08-21 13:22:55,726 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-08-21 13:22:55,726 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-08-21 13:22:55,726 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (<= |old(~a28~0)| 7)) (not (= |old(~a19~0)| 1)) (and .cse0 (not (= ~a28~0 11))) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and (= ~a19~0 1) .cse0) (not (<= |old(~a11~0)| 0)))) [2020-08-21 13:22:55,726 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-08-21 13:22:55,726 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-08-21 13:22:55,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 01:22:55 BoogieIcfgContainer [2020-08-21 13:22:55,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 13:22:55,756 INFO L168 Benchmark]: Toolchain (without parser) took 14579.52 ms. Allocated memory was 140.0 MB in the beginning and 415.8 MB in the end (delta: 275.8 MB). Free memory was 101.1 MB in the beginning and 87.6 MB in the end (delta: 13.5 MB). Peak memory consumption was 289.3 MB. Max. memory is 7.1 GB. [2020-08-21 13:22:55,757 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 13:22:55,758 INFO L168 Benchmark]: CACSL2BoogieTranslator took 808.79 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 100.9 MB in the beginning and 170.7 MB in the end (delta: -69.8 MB). Peak memory consumption was 32.4 MB. Max. memory is 7.1 GB. [2020-08-21 13:22:55,759 INFO L168 Benchmark]: Boogie Preprocessor took 132.21 ms. Allocated memory is still 204.5 MB. Free memory was 170.7 MB in the beginning and 165.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-08-21 13:22:55,760 INFO L168 Benchmark]: RCFGBuilder took 1221.63 ms. Allocated memory was 204.5 MB in the beginning and 238.6 MB in the end (delta: 34.1 MB). Free memory was 165.8 MB in the beginning and 181.1 MB in the end (delta: -15.3 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. [2020-08-21 13:22:55,761 INFO L168 Benchmark]: TraceAbstraction took 12407.17 ms. Allocated memory was 238.6 MB in the beginning and 415.8 MB in the end (delta: 177.2 MB). Free memory was 181.1 MB in the beginning and 87.6 MB in the end (delta: 93.5 MB). Peak memory consumption was 270.7 MB. Max. memory is 7.1 GB. [2020-08-21 13:22:55,766 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 808.79 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 100.9 MB in the beginning and 170.7 MB in the end (delta: -69.8 MB). Peak memory consumption was 32.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.21 ms. Allocated memory is still 204.5 MB. Free memory was 170.7 MB in the beginning and 165.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1221.63 ms. Allocated memory was 204.5 MB in the beginning and 238.6 MB in the end (delta: 34.1 MB). Free memory was 165.8 MB in the beginning and 181.1 MB in the end (delta: -15.3 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12407.17 ms. Allocated memory was 238.6 MB in the beginning and 415.8 MB in the end (delta: 177.2 MB). Free memory was 181.1 MB in the beginning and 87.6 MB in the end (delta: 93.5 MB). Peak memory consumption was 270.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 445]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((!(\old(a28) <= 7) || !(\old(a19) == 1)) || (a17 <= 8 && !(a28 == 11))) || !(8 == \old(a17))) || !(\old(a25) <= 0)) || (a19 == 1 && a17 <= 8)) || !(\old(a11) <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.3s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 9.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 174 SDtfs, 3638 SDslu, 260 SDs, 0 SdLazy, 4423 SolverSat, 1122 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2711occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 854 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 77 PreInvPairs, 133 NumberOfFragments, 228 HoareAnnotationTreeSize, 77 FomulaSimplifications, 10191 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2755 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 614 NumberOfCodeBlocks, 614 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 609 ConstructedInterpolants, 0 QuantifiedInterpolants, 194515 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 121/147 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...